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Nage-waza (68 techniques)

Te-waza (16 techniques)

 

1 Seoi-nage
A technique to throw the opponent over the right shoulder by breaking his balance forward and inserting the right elbow underneath his right armpit to carry him on the back.
2 Ippon-seoi-nage
A technique to throw the opponent over the right shoulder by breaking his balance forward and holding his right arm from the inside with the right arm to carry him on the back.
3 Seoi-otoshi
A technique to pull down and throw the opponent by breaking his balance forward and falling on one of the knees or both while carrying him on the back.
4 Tai-otoshi
A technique to pull down and throw the opponent by breaking his balance forward and turning the body to the left to put the right foot in front of his right foot.
5 Kata-guruma
A technique to uplift the opponent on both shoulders across the back of the neck and throw him down by breaking his balance forward while holding his right thigh from the inside with the right arm.
6 Sukui-nage
A technique to uplift and throw down the opponent by breaking his balance backward while stepping behind him and holding both of his thighs from the front side with both hands or another technique to uplift the opponent’s one of thighs and throw him down by inserting the hand between his legs.
7 Obi-otoshi
A technique to uplift and throw down the opponent by grabbing the front side of his belt with the right hand, pulling it forward while stepping behind him and holding his hip from the front side with the left hand to break his balance backward.
8 Uki-otoshi
A technique to throw down the opponent by breaking his balance forward and pulling him down toward the frontal-right corner.
9 Sumi-otoshi
A technique to push and throw down the opponent by breaking his balance toward the retral-right corner while stepping onto the outside of his right foot with the left.
10 Yama-arashi
A technique to sweep up the opponent’s right leg with the right foot and throw him down by grabbing his right sleeve with the left hand and gripping his right side-collar with the right thumb inside while breaking his balance by lifting him up forward.
11 Obi-tori-gaeshi
A technique to throw the opponent over the right shoulder by grabbing his belt over his shoulder with the right hand and holding his right arm or leg with the left hand while lifting him up.
12 Morote-gari
A technique to reap and throw down the opponent by holding both of his legs from the outside in both hands.
13 Kuchiki-taoshi
A technique to push down the opponent backward by holding one of his legs either from the inside or outside with one of the hands and pulling it up.
14 Kibisu-gaeshi
A technique to throw the opponent by reaping his heel either from the inside or outside with one of the hands.
15 Uchi-mata-sukashi
A technique to fend off the opponent’s Uchi-mata attempt and throw him down.
16 Ko-uchi-gaeshi
A technique to dodge the opponent’s Ko-uchi-gari attempt and throw him down.

 

01.

背負投 / Seoi-nage / 업어치기

 

https://www.youtube.com/watch?v=zIq0xI0ogxk

 

 

A technique to throw the opponent over the right shoulder by breaking his balance forward and inserting the right elbow underneath his right armpit to carry him on the back.

 

유도에서 업어치기는 상대방을 내 어깨 위로 들어 올려 바닥에 메치는 기술입니다. 상대의 균형을 무너뜨리고 자신의 몸을 활용해 상대를 던지는 대표적인 기술 중 하나입니다. 아래는 기본적인 업어치기 방법입니다.

  1. 자세 잡기
    기본 자세에서 상대방의 소매와 깃을 잡습니다. 오른손으로 상대방의 깃(또는 옷깃)을 잡고, 왼손은 상대의 소매를 잡습니다.
  2. 균형 무너뜨리기
    업어치기의 핵심은 상대의 균형을 먼저 무너뜨리는 것입니다. 상대의 중심이 앞쪽으로 쏠리게 해야 합니다. 상대방을 살짝 앞으로 당기면서 체중이 앞으로 쏠리도록 유도합니다.
  3. 몸 돌리기
    자신의 오른발을 상대방의 발 안쪽으로 넣고, 몸을 돌려 상대방에게 등을 보이게 합니다. 이때 상대방이 어깨 위로 올 수 있도록 자신의 무릎을 살짝 굽혀 낮은 자세를 취합니다.
  4. 상대방 들어올리기
    상대의 깃을 잡은 오른손으로 상대방을 위로 들어 올리면서, 소매를 잡은 왼손으로는 상대의 팔을 앞으로 당깁니다. 이를 통해 상대를 내 몸 위로 올려 균형을 잃게 합니다.
  5. 던지기
    엉덩이와 몸통을 활용해 상대방을 힘껏 앞으로 던집니다. 이때 자신의 다리와 몸을 고정하여 상대가 내 어깨를 넘어가면서 안전하게 떨어지도록 유도합니다.

: 업어치기는 순간적인 힘보다는 상대방의 균형을 무너뜨리는 타이밍이 중요합니다. 연습을 통해 감각을 익히는 것이 좋습니다.

실전에서는 업어치기를 준비하면서 상대의 움직임에 맞추어 변형 기술을 시도하거나, 상황에 따라 빠르게 다른 기술로 전환할 수 있습니다.

 

 

 

 [投げる]

 

1.던지다
2.멀리 보내다
3.비추다

부정형
청유형

 

 [背負(い)投げ]

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Names of Judo Techniques

Nage-Waza (68 techniques)

Te-waza (16 techniques)
Koshi-waza (10 techniques)
Ashi-waza (21 techniques)
Ma-sutemi-waza (5 techniques)
Yoko-sutemi-waza (16 techniques)
Kyu (Former) Go Kyo no waza - Stipulated in 1895. (42 techniques)
Go Kyo no waza - Revised in 1920. (40 techniques)

 

 

Katame-waza (32 techniques)

Osaekomi-waza (10 techniques)
Shime-waza (12 techniques)
Kansetsu-waza (10 techniques)

 

 

 

 

Nage-waza (68 techniques)

Click on the technique name to jump to the technique video page of the external site (Kodokan official YouTube channel).

 

Te-waza (16 techniques)

1 Seoi-nage
A technique to throw the opponent over the right shoulder by breaking his balance forward and inserting the right elbow underneath his right armpit to carry him on the back.
2 Ippon-seoi-nage
A technique to throw the opponent over the right shoulder by breaking his balance forward and holding his right arm from the inside with the right arm to carry him on the back.
3 Seoi-otoshi
A technique to pull down and throw the opponent by breaking his balance forward and falling on one of the knees or both while carrying him on the back.
4 Tai-otoshi
A technique to pull down and throw the opponent by breaking his balance forward and turning the body to the left to put the right foot in front of his right foot.
5 Kata-guruma
A technique to uplift the opponent on both shoulders across the back of the neck and throw him down by breaking his balance forward while holding his right thigh from the inside with the right arm.
6 Sukui-nage
A technique to uplift and throw down the opponent by breaking his balance backward while stepping behind him and holding both of his thighs from the front side with both hands or another technique to uplift the opponent’s one of thighs and throw him down by inserting the hand between his legs.
7 Obi-otoshi
A technique to uplift and throw down the opponent by grabbing the front side of his belt with the right hand, pulling it forward while stepping behind him and holding his hip from the front side with the left hand to break his balance backward.
8 Uki-otoshi
A technique to throw down the opponent by breaking his balance forward and pulling him down toward the frontal-right corner.
9 Sumi-otoshi
A technique to push and throw down the opponent by breaking his balance toward the retral-right corner while stepping onto the outside of his right foot with the left.
10 Yama-arashi
A technique to sweep up the opponent’s right leg with the right foot and throw him down by grabbing his right sleeve with the left hand and gripping his right side-collar with the right thumb inside while breaking his balance by lifting him up forward.
11 Obi-tori-gaeshi
A technique to throw the opponent over the right shoulder by grabbing his belt over his shoulder with the right hand and holding his right arm or leg with the left hand while lifting him up.
12 Morote-gari
A technique to reap and throw down the opponent by holding both of his legs from the outside in both hands.
13 Kuchiki-taoshi
A technique to push down the opponent backward by holding one of his legs either from the inside or outside with one of the hands and pulling it up.
14 Kibisu-gaeshi
A technique to throw the opponent by reaping his heel either from the inside or outside with one of the hands.
15 Uchi-mata-sukashi
A technique to fend off the opponent’s Uchi-mata attempt and throw him down.
16 Ko-uchi-gaeshi
A technique to dodge the opponent’s Ko-uchi-gari attempt and throw him down.

Koshi-waza (10 techniques)


Koshi-guruma
1 Uki-goshi
A technique to throw down the opponent by breaking his balance forward and inserting the right arm through his left armpit while loading him slightly onto the hip and twisting the body.
2 O-goshi
A technique to load the opponent onto the back of the hip and throw him down by breaking his balance forward and inserting the right arm through his left armpit while holding his hip and drawing it closer.
3 Koshi-guruma
A technique to rotate the opponent on the axis of the hip and throw him down by breaking his balance forward and holding his neck in the right arm while thrusting the hip deeply.
4 Tsurikomi-goshi
A technique to load the opponent onto the back of the hip and throw him down by breaking his balance forward while gripping his left front-lapel with the right hand and lifting it up.
5 Sode-tsurikomi-goshi
A technique to load the opponent onto the back of the hip and throw him down by breaking his balance forward while gripping his left sleeve with the right hand and lifting it up.
6 Harai-goshi
A technique to sweep up the opponent with the right leg and throw him down by breaking his balance forward and loading him onto the back of the right hip.
7 Tsuri-goshi
A technique to load the opponent onto the back of the hip and throw him down by breaking his balance forward and grabbing the back of his belt to lift it up.
8 Hane-goshi
A technique to spring up the opponent with the back of the right hip and the right leg and throw him down by breaking his balance forward.
9 Utsuri-goshi
A technique to throw down the opponent by counteracting his Nage-waza or other attack, holding and lifting his hip with the right arm and shifting him onto the back of the hip.
10 Ushiro-goshi
A technique to throw down the opponent vertically by counteracting his Nage-waza or other attack and holding and lifting his hip.

Ashi-waza (21 techniques)


Deashi-harai
1 De-ashi-harai
A technique to sweep the opponent’s right foot with the left foot and throw him down immediately when he takes a step forward and loads his weight onto it.
2 Hiza-guruma
A technique to throw down the opponent by breaking his balance forward and hold his right knee with the left foot to rotate him around it.
3 Sasae-tsurikomi-ashi
A technique to hold the opponent’s right ankle with the left foot and throw him down by breaking his balance while lifting him up forward.
4 O-soto-gari
A technique to reap the opponent’s right leg from the outside with the right leg and throw him down by breaking his balance backward.
5 O-uchi-gari
A technique to reap the opponent’s left leg from the inside with the right leg and throw him down by breaking his balance backward.
6 Ko-soto-gari
A technique to reap the opponent’s right foot from the outside with the left foot and throw him down by breaking his balance backward.
7 Ko-uchi-gari
A technique to reap the opponent’s right foot from the inside with the right foot and throw him down by breaking his balance backward.
8 Okuri-ashi-harai
A technique to throw down the opponent by driving him leftward and sweep his right foot with the left foot so that both of his feet are put together.
9 Uchi-mata
A technique to sweep up the opponent’s left inner thigh with the back of the right thigh and throw him down by breaking his balance forward.
10 Ko-soto-gake
A technique to throw down the opponent by breaking his balance backward, hooking the left foot or leg from the outside on his right leg and uplifting his body.
11 Ashi-guruma
A technique to throw down the opponent by breaking his balance forward, putting the right leg on his right knee and rotating him on its axis.
12 Harai-tsurikomi-ashi
A technique to sweep up the opponent’s ankle with the left foot from the front and throw him down by breaking his balance while lifting him up forward.
13 O-guruma
A technique to throw down the opponent by breaking his balance forward and putting the right leg around the area from his lower abdomen to upper part of thighs to rotate him on its axis.
14 O-soto-guruma
A technique to throw down the opponent by breaking his balance backward and putting the right leg behind both of his legs to rotate him on its axis.
15 O-soto-otoshi
A technique to throw down the opponent vertically by breaking his balance backward and sliding down the right leg on the back of his right thigh.
16 Tsubame-gaeshi
A technique to throw down the opponent by fending off his foot sweeping attempt and counter-sweeping with the same foot that was being attacked.
17 O-soto-gaeshi
A technique to throw down the opponent by counter-reaping his O-soto-gari attempt with the leg that is being attacked.
18 O-uchi-gaeshi
A technique to throw down the opponent by counter-reaping his O-uchi-gari attempt with the leg that is being attacked.
19 Hane-goshi-gaeshi
A technique to throw down the opponent by counteracting his Hane-goshi attempt either to reap or hook his pivot foot from the outside with the foot or leg.
20 Harai-goshi-gaeshi
A technique to throw down the opponent by counteracting his Harai-goshi attempt either to reap or hook his pivot foot from the outside with the foot or leg.
21 Uchi-mata-gaeshi
A technique to throw down the opponent by counteracting his Uchi-mata attempt either to reap or hook his pivot foot from the outside with the foot or leg.

Ma-sutemi-waza (5 techniques)


Tomoe-nage
1 Tomoe-nage
A technique to throw the opponent over the head by breaking his balance forward and putting the right sole on his lower abdomen while laying down the body onto the back.
2 Sumi-gaeshi
A technique to throw the opponent over the head by breaking his balance forward, drawing his upper body closer, while grabbing his lapel or back with the right hand and laying down the body onto the back, and lifting up the inside of his left thigh with the right lower leg.
3 Hikikomi-gaeshi
A technique to throw the opponent over the head by breaking his balance forward, drawing his upper body closer, while grabbing the back of his belt with the right hand and laying down the body onto the back, and lifting up the inside of his left thigh with the right lower leg.
4 Tawara-gaeshi
A technique to throw the opponent over the shoulder by breaking his balance forward, leaning over his back, holding and lifting his upper body in both arms while laying down the body onto the back.
5 Ura-nage
A technique to throw the opponent over the shoulder by counteracting the opponent’s Nage-waza or other attack and holding and lifting his upper body while laying down the body onto the back.

Yoko-sutemi-waza (16 techniques)

1 Yoko-otoshi
A technique to pull and throw down the opponent by breaking his balance rightward and laying down the body onto the left side while sliding the left leg toward the outside of his right foot .
2 Tani-otoshi
A technique to pull and throw down the opponent by breaking his balance backward and laying down the body onto the left side while sliding the left leg behind him.
3 Hane-makikomi
A technique to wrap the opponent round and throw down him by applying Hane-goshi and holding his right arm in the right armpit.
4 Soto-makikomi
A technique to wrap the opponent round and throw down him by breaking his balance forward, holding his right arm in the right armpit and thrusting the hip deeply.
5 Uchi-makikomi
A technique to wrap the opponent round and throw down him by breaking his balance forward, holding his right arm from the inside in the right arm and thrusting the hip deeply.
6 Uki-waza
A technique to throw down the opponent by breaking his balance toward the frontal-right corner and stretching the left leg to put it on the outside of his right foot while laying down the body onto the left side and rotating him.
7 Yoko-wakare
A technique to throw down the opponent by breaking his balance forward and stepping both feet onto the outside of his right foot while laying down the body onto the left side and rotating him over the body.
8 Yoko-guruma
A technique to rotate and throw down the opponent by counteracting his Nage-waza or other attack, holding his hip with the left arm to break his balance forward, sliding the right leg between his legs from the front while twisting the body and laying down the body onto the left side.
9 Yoko-gake
A technique to throw down the opponent by breaking his balance toward his right small toe and pushing and sweeping his right outer ankle with the left foot while laying down the body onto the left side.
10 Daki-wakare
A technique to throw the opponent over the body by holding his upper body from behind when he is about to be on the mat with both hands and feet and twisting the body while laying down the body onto the left side.
11 O-soto-makikomi
A technique to wrap the opponent round and throw him down by applying O-soto-gari and holding his right arm in the right armpit.
12 Uchi-mata-makikomi
A technique to wrap the opponent round and throw him down by applying Uchi-mata and holding his right arm in the right armpit.
13 Harai-makikomi
A technique to wrap the opponent round and throw him down by applying Harai-goshi and holding his right arm in the right armpit.
14 Ko-uchi-makikomi
A technique to wrap the opponent round and throw him down by breaking his balance backward and hooking the right leg on his right leg from the inside while laying down the body forward.
15 Kani-basami
A technique to throw down the opponent while holding his lower body with both legs by breaking his balance backward, turning the body toward his left side and putting the right leg on his lower abdomen and the left leg on the backside of both of his knees while laying down the body onto the left side.
16 Kawazu-gake
A technique to throw down the opponent by drawing him closer, turning the body, hooking the right leg around his left leg from the inside and raising the leg forward while laying down the body with him.

Kyu (Former) Go Kyo no wazaStipulated in 1895. (42 techniques)

Dai-ikkyo
(group1)
Hiza-guruma, Sasae-turikomi-ashi, Uki-goshi,Tai-otoshi, O-soto-gari, De-ashi-harai, Yoko-otoshi (7 techniques)
Dai-nikyo
(group 2)
Sumi-gaeshi, O-goshi, Ko-soto-gari, Koshi-guruma, Seoi-nage,Tomoe-nage, Tani-otoshi (7 techniques)
Dai-sankyo
(group 3)
Okuri-ashi-harai, Harai-goshi, Ushiro-goshi, Ura-nage, Uchi-mata, Obi-otoshi, Hane-goshi (7 techniques)
Dai-yonkyo
(group 4)
Uki-otoshi, Uki-waza, Daki-wakare, Kata-guruma, Hikikomi-gaeshi, Soto-makikomi, Tsuri-goshi, Utsuri-goshi, O-soto-otoshi, Tawara-gaeshi (10 techniques)
Dai-gokyo
(group 5)
Yoko-guruma, Yoko-wakare, Uchi-makikomi, Ko-uchi-gari, Ashi-guruma, Seoi-otoshi, Yoko-gake, Harai-tsurikomi-ashi, Yama-arashi, O-soto-guruma, Tsurikomi-goshi (11 techniques)

* "Tsurikomi-goshi" was not included in the Go Kyo no waza at the time of stipulation in 1895. It seems to be included in at the end of Meiji era, around 1911.

Go Kyo no wazaRevised in 1920 (40 techniques)

Dai-ikkyo
(group1)
De-ashi-harai, Hiza-guruma, Sasae-tsurikomi-ashi, Uki-goshi, O-soto-gari, O-goshi, O-uchi-gari, Seoi-nage (8 techniques)
Dai-nikyo
(group 2)
Ko-soto-gari, Ko-uchi-gari, Koshi-guruma, Tsurikomi-goshi, Okuri-ashi-harai, Tai-Otoshi, Harai-goshi, Uchi-mata (8 techniques)
Dai-sankyo
(group 3)
Ko-soto-gake, Tsuri-goshi, Yoko-otoshi, Ashi-guruma, Hane-goshi, Harai-tsurikomi-ashi, Tomoe-nage, Kata-guruma (8 techniques)
Dai-yonkyo
(group 4)
Sumi-gaeshi, Tani-otoshi, Hane-makikomi, Sukui-nage, Utsuri-goshi, O-guruma, Soto-makikomi, Uki-otoshi (8 techniques)
Dai-gokyo
(group 5)
O-soto-guruma, Uki-waza, Yoko-wakare, Yoko-guruma, Ushiro-goshi, Ura-nage, Sumi-otoshi, Yoko-gake (8 techniques)

Katame-Waza (32 techniques)

Click on the technique name to jump to the technique video page of the external site (Kodokan official YouTube channel).

Osaekomi-waza (10 techniques)


Kuzure-kesa-gatame
1 Kesa-gatame
A technique to hold down the opponent’s upper body under the right side of the chest region by holding his right arm in the left arm from the right side of the opponent lying on his back and gripping the back of his collar with the right hand.
2 Kuzure-kesa-gatame
A technique to hold down the opponent’s upper body under the right side of the chest region by holding his right arm in the left arm from the right side of the opponent lying on his back and inserting the right arm through his left armpit.
3 Ushiro-kesa-gatame
A technique to hold down the opponent’s upper body under the left side of the chest region by putting the left hip on the right side of his body from the right side of the opponent lying on his back, holding his right arm in the right arm and holding his upper body in the left arm.
4 Kata-gatame
A technique to hold down the opponent by holding his right arm and neck with the right side of the neck and both arms from the right side of the opponent lying on his back.
5 Kami-shiho-gatame
A technique to hold down the opponent’s upper body under the chest and abdomen region by gripping both sides of his belt with both hands from the top side of his head while he is lying on his back.
6 Kuzure-kami-shiho-gatame
A technique to hold down the opponent’s upper body under the chest and abdomen region by holding his right arm in the right arm from the diagonal-right side of his head and gripping the left side of his belt with the left hand while he is lying on his back.
7 Yoko-shiho-gatame
A technique to hold down the opponent’s upper body under the chest and abdomen region by grabbing his belt or trousers through his legs with the right hand from the right side of the opponent lying on his back and gripping his left side-collar through the back of his neck with the left hand.
8 Tate-shiho-gatame
A technique to hold down the opponent’s upper body under the chest and abdomen region by lying on the stomach over the opponent lying on his back, holding his right arm and neck with both hands and holding his lower body with both legs.
9 Uki-gatame
A technique to hold down the opponent’s upper body with the right leg by holding his right arm with one of the arms or both from the right side of the opponent lying on his back and stretching the left leg backward.
10 Ura-gatame
A technique to hold down the opponent under the back region by holding his right arm with the right arm from the right side of the opponent lying on his back and grabbing his leg with the left hand.

Shime-waza (12 techniques)

1 Nami-juji-jime
A technique to choke the opponent’s neck region by crossing the wrists from the front, gripping his side-collars with both thumbs inside and pushing both hands.
2 Gyaku-juji-jime
A technique to choke the opponent’s neck region by crossing the wrists from the front gripping his side-collars with four fingers of both hands inside and tightening arms.
3 Kata-juji-jime
A technique to choke the opponent’s neck region by crossing the wrists from the front gripping his left side-collar with four fingers of the left hand inside and the right side-collar with right thumb inside, pulling the left hand and pushing the right hand.
4 Hadaka-jime
A technique to choke the opponent’s neck region without using judogi by putting the right forearm on the opponent’s throat from behind and joining the left arm on it.
5 Okuri-eri-jime
A technique to choke the opponent’s neck region by gripping his left side-collar through his throat with the right hand and the right front-lapel through the left armpit with the left hand from behind, pulling the right hand in a right-rear direction and pulling down the left hand.
6 Kataha-jime
A technique to choke the opponent’s neck region by gripping his left side-collar through his throat with right hand from behind, inserting the left arm through the left armpit to raise the arm upward, pulling the right hand in a right-rear direction and thrusting the left hand under the right arm.
7 Katate-jime
A technique to choke the opponent’s neck region by gripping his right side-collar with the right thumb inside from the left side of the opponent lying on his back.
8 Ryote-jime
A technique to choke the opponent’s neck region with fists from the front by gripping his left side-collar with right thumb inside and the right side-collar with left thumb inside.
9 Sode-guruma-jime
A technique to choke the opponent’s neck region from the front by putting the right forearm on his throat and the left forearm behind the neck to hold his neck between them, gripping the right cuff with left hand and thrusting the right hand into the right side of his neck.
10 Tsukkomi-jime
A technique to choke the opponent’s neck region from the front by gripping his right front-lapel with the left hand and the left front-lapel with the right hand and thrusting the right hand toward the right side of his neck.
11 Sankaku-jime
A technique to choke the opponent’s neck region by holding his neck and right armpit between both legs and hooking the right foot on the back of the left knee while forming a triangular form.
12 Do-jime
A technique to choke the opponent by holding his torso region between both legs.

Kansetsu-waza (10 techniques)


Ude-higishi-juji-gatame
1 Ude-garami
A technique to twist and lock the opponent’s elbow joint by grabbing his left wrist with the left hand from the right side of the opponent lying on his back and inserting the right hand to grip one's left wrist underneath his upper arm.
2 Ude-hishigi-juji-gatame
A technique to stretch and lock the opponent’s elbow joint by grabbing his right wrist with both hands from the right side of the opponent lying on his back and holding his upper arm between both thighs.
3 Ude-hishigi-ude-gatame
A technique to stretch and lock the opponent’s elbow joint with both hands by holding his left wrist between the neck and the right shoulder from the right side of the opponent lying on his back.
4 Ude-hishigi-hiza-gatame
A technique to stretch and lock the opponent’s elbow joint with the left knee by holding his right arm under the left armpit from the front.
5 Ude-hishigi-waki-gatame
A technique to stretch and lock the opponent’s elbow joint by grabbing his right wrist with both hands and holding the arm under the left armpit.
6 Ude-hishigi-hara-gatame
A technique to stretch and lock the opponent’s elbow joint by grabbing his right wrist with the right hand from the right side of the opponent and pressing his arm on the abdomen.
7 Ude-hishigi-ashi-gatame
A technique to stretch and lock the opponent’s elbow joint by hooking the right leg on his right arm from the right side of the opponent lying on his stomach.
8 Ude-hishigi-te-gatame
A technique to stretch and lock the opponent’s elbow joint by inserting the left arm from the right side of the opponent through his right armpit to grip his left front-lapel and grabbing his right wrist with the right hand or another technique to lock the opponent’s elbow joint by grabbing his wrist with one of the hands or both and twisting his wrist behind his back.
9 Ude-hishigi-sankaku-gatame
A technique either to twist or stretch and lock the opponent’s elbow joint by holding his neck and right armpit between both legs and hooking the right foot on the back of the left knee while forming a triangular form.
10 Ashi-garami
A technique to stretch and lock the opponent’s knee joint by inserting the left foot between the opponent’s legs from the front and wrapping the left leg around his right leg from behind to thrust it onto his lower abdomen.
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for 루프는 주어진 범위 또는 시퀀스를 순차적으로 반복하여 코드 블록을 실행하는 반복문입니다.

파이썬에서 for 루프는 주로 range() 함수를 함께 사용하여 숫자를 반복하거나, 리스트와 같은 시퀀스의 요소를 하나씩 가져올 때 많이 사용됩니다.

 

 

for 변수 in 범위:
 실행할 코드
 

여기서 변수는 반복할 때마다 범위의 각 요소를 하나씩 받아옵니다.

 

range()와 함께 사용하는 for 루프

range() 함수는 특정 범위의 숫자를 생성하는 함수입니다.

예를 들어, range(1, 5)는 1에서 4까지의 숫자(1, 2, 3, 4)를 생성합니다.

예시 1: 숫자 출력하기

 

 
출력
 
1
2
3
4
 
 

여기서는 i가 1에서 4까지 하나씩 증가하며 print(i)를 통해 각 값을 출력합니다.

 

예시 2: 간단한 덧셈

다음 코드는 1부터 5까지의 숫자를 모두 더하는 코드입니다.

 

 

 

출력:

15

여기서 total은 i의 값을 하나씩 더하며, i는 1, 2, 3, 4, 5 순서로 반복됩니다.

 
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  1. range(1, n + 1, 2):
    • range 함수는 연속된 숫자들을 생성할 때 사용하는 함수입니다.
    • 이 함수는 range(시작값, 끝값, 증가값)의 형식으로 사용됩니다.
    • 여기에서:
      • 1은 시작값으로, 첫 번째 숫자를 1로 설정하여 1부터 시작합니다.
      • n + 1은 끝값으로, 이 범위는 n까지 포함하기 위해서 n + 1로 설정합니다. 파이썬의 range는 끝값은 포함하지 않기 때문에 n을 포함하려면 n + 1을 사용해야 합니다.
      • 2는 증가값으로, 1부터 시작해서 2씩 증가하면서 숫자들을 생성합니다. 즉, 1, 3, 5, ...과 같은 방식으로 2씩 증가하며 홀수만 생성됩니다.
  2. list(range(1, n + 1, 2)):
    • range(1, n + 1, 2)는 홀수들로 이루어진 연속된 숫자들을 생성하지만, 이 자체로는 파이썬의 range 객체로 반환됩니다.
    • list() 함수를 사용하여 이 range 객체를 리스트로 변환합니다.
    • 결과적으로, list(range(1, n + 1, 2))는 n 이하의 모든 홀수를 포함하는 리스트가 됩니다.

예제 실행

  1. 예를 들어 n = 10일 때:
    • range(1, 10 + 1, 2)는 range(1, 11, 2)가 되어, [1, 3, 5, 7, 9]를 생성합니다.
    • list(range(1, 11, 2))는 [1, 3, 5, 7, 9]로 변환됩니다.
  2. 예를 들어 n = 15일 때:
    • range(1, 15 + 1, 2)는 range(1, 16, 2)가 되어, [1, 3, 5, 7, 9, 11, 13, 15]를 생성합니다.
    • list(range(1, 16, 2))는 [1, 3, 5, 7, 9, 11, 13, 15]로 변환됩니다.

이 코드는 간결하고 효율적이며, 주어진 정수 n 이하의 모든 홀수를 오름차순으로 리스트에 담아 반환하는 최적의 해결법입니다.

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파이썬의 print() 함수에서 sep와 end는 출력 형식을 지정할 때 유용하게 사용할 수 있는 매개변수입니다.

 

1. sep (separator)

  • 여러 값을 출력할 때, 각 값 사이에 들어갈 구분자를 지정합니다.
  • 기본값은 ' ' (공백)입니다.
1
2
print("Hello""World", sep=", ")
# 출력: Hello, World
cs

 

위 코드에서 sep을 , 로 지정했기 때문에, "Hello"와 "World" 사이에 쉼표와 공백이 추가되었습니다.

 

2. end

  • 출력이 끝난 후, 기본적으로 줄바꿈이 일어나는데 end를 사용하면 이 동작을 원하는 문자열로 변경할 수 있습니다.
  • 기본값은 '\n' (줄바꿈 문자)입니다.
1
2
3
print("Hello", end=" ")
print("World")
# 출력: Hello World
cs

위 코드에서는 end=" "로 지정했기 때문에 첫 번째 print() 문이 끝난 후 줄바꿈 대신 공백이 추가되었습니다.

 

 

sep와 end 함께 사용하기:

1
2
print("Python""is""fun", sep="-", end="!\n")
# 출력: Python-is-fun!
cs

이렇게 sep과 end를 함께 사용하면, 출력 형식을 좀 더 세밀하게 제어할 수 있습니다.

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중앙값은 어떤 주어진 값들을 크기의 순서대로 정렬했을 때 가장 중앙에 위치하는 값을 의미합니다.

예를 들어 1, 2, 7, 10, 11의 중앙값은 7입니다.

 

정수 배열 array가 매개변수로 주어질 때, 중앙값을 return 하도록 함수를 만들고 싶음.

 

*

리스트명.sort()  - 오름차순 정렬(작->큰)

리스트명.sort(reverse=True) - 내림차순 정렬 (큰->작)

 

*

len(리스트명) - 리스트의 길이를 알려줌.

 

 

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예를 들어

 

number = [1,2,3,4,5] 라는 리스트가 있다.

이를 *2 하여

[2,4,6,8,10]라는 리스트로 만들고 싶다.

 

간단히 

number * 2 라고 하면 되나 싶지만

[ 1,2,3,4,5 1,2,3,4,5 ] 라고 나온다.

 

 

 

* number 라는 변수는 이름 아무거나 해도 됨

* 리스트 컴프리헨션이 뭐임?

 

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* 파이썬 - 사칙연산

+ , - , * , /

 

 

 

파이썬에서 사칙연산을 수행하는 연산자는 다음과 같습니다.

 

 

  1. 덧셈 (+)
    • 두 수를 더합니다.
    python
    3 + 5
    # 결과: 8
     
     
  2. 뺄셈 (-)
    • 두 수를 뺍니다.
    python
    10 - 7
    # 결과: 3
     
     
  3. 곱셈 (*)
    • 두 수를 곱합니다.
    python
    4 * 6
    # 결과: 24
     
     
  4. 나눗셈 (/)
    • 두 수를 나누고, 결과는 실수형(float)으로 반환됩니다.
    python
    15 / 4
    # 결과: 3.75
     
     
  5. 몫 (//)
    • 두 수를 나누고, 소수점 이하를 버린 몫을 반환합니다.
    python
    15 // 4
    # 결과: 3
     
     
  6. 나머지 (%)
    • 두 수를 나누고, 나머지를 반환합니다.
    python
    15 % 4
    # 결과: 3
     
     
  7. 거듭제곱 (**)
    • 첫 번째 수를 두 번째 수만큼 거듭제곱합니다.
    python
    2 ** 3
    # 결과: 8

이 연산자를 활용해 다양한 계산을 할 수 있습니다!

 

 

 

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  • 릿코드(https://leetcode.com/) - 미국에서 많이 사용하고 있는 사이트. 기출문제들을 바탕으로 만들어졌고 커뮤니티도 활성화되서 좋은 정보들을 얻을 수 있음. (영어)
  • 해커랭크(https://www.hackerrank.com/) - 한국, 미국에서 많이 사용되어 지는 것 같음. 초보자들이 시작하기에 좋은 사이트. 코딩 문제 푸는 것 외에 여러가지 공부할 수 있는 자료들이 많음. (영어)
  • 백준저지(https://www.acmicpc.net/) - 한국어로 되어있는 사이트이고 많은 문제들이 제공됨. 하지만 코딩 테스트 쪽보단 프로그래밍 대회(경진대회-올림피아드) 수준의 문제들이 많음.
  • 프로그래머스(https://programmers.co.kr/learn/challenges?tab=all_challenges) - 한국어로 되어 있고 코딩 테스트에서도 많이 사용되어지는 사이트. 코딩 테스트 외에 다른 프로그래밍 강의들이 많이 있음.
  • GeeksforGeeks(https://www.geeksforgeeks.org/) - 다른 사이트들 처럼 문제를 풀 수 있는 온라인 에디터를 제공하진 않지만 많은 문제풀이들이 제공됨. 코딩 테스트외에 컴퓨터 관련된 여러가지 정보들이 많음. (영어)
  • SW Expert Academy(https://swexpertacademy.com/main/main.do) - 삼성에 만든 소프트웨어 아카데미. 코딩 문제와 강의들을 제공함.
  • Codility (https://app.codility.com/programmers/) - 코딩 테스트 플랫폼을 제공하는 사이트인데 코딩 테스트 연습도 할 수 있음. (영어)
  • Coding Game (https://www.codingame.com/start) - 코딩을 게임하듯이 할 수 있는 사이트. (영어)
  • Code Signal (https://codesignal.com/) - 코딜리티처럼 코딩 테스트 플랫폼을 제공하는 사이트. 역시 코딩 테스트 연습 할 수 있음. (영어)
  • CodeUp (https://codeup.kr/index.php) - 한국어 사이트이며 백준저지랑 비슷한 사이트. 코딩 테스트보단 대회에 집중된 문제들로 구성되어 있음. 중고등학교 위주로 구성된 사이트. 
  • Codewars (https://www.codewars.com/) - 많은 문제들이 제공되고 다른 사람들이 풀 수 있게 직접 문제를 만들 수 있음. (영어)
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https://school.programmers.co.kr/learn/challenges/beginner?order=acceptance_desc

 

코딩테스트 입문 | 프로그래머스 스쿨

코딩테스트에 처음 도전하는 사람들을 위한 입문 문제 모음. 쉬운 문제부터 하나씩 도전해 보면서 코딩테스트에 자신감도 붙이고 문제 해결 능력을 키워보세요!

school.programmers.co.kr

 

코딩공부를 다시 시작한 지 어느새 3개월이 되었다.

매일 틈틈이 강의도 듣고 인터넷 검색도 하고 나름 열심히 공부 했다고 생각했지만

막상 얼마나 공부가 된건지, 뭐를 더 어떻게 해야하는지 모르겠다.

 

그러던 중 오늘 문득 코딩테스트를 검색했는데 

좋은 사이트를 발견했다.

 

 

 

 

다양한 난도의 코딩테스트 문제가 있다.

 

 

 

사이트 내에서 문제를 보며 바로 풀이 할 수 있다.

 

사이트 내에서 바로 실행 및 채점이 가능하다.

다른 사람들의 풀이를 볼 수 있고, 몇 명이나 같은 풀이를 했는지도 알려줘서

다양한 풀이법을 고민해 볼 수 있다.

 

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