[프로그래머스] 삼총사

https://school.programmers.co.kr/learn/courses/30/lessons/131705

프로그래머스

 

나의 풀이 

def solution(number):
    result = 0
    num_len = len(number)
    for one in range(num_len-2):
        for two in range(one + 1, num_len-1):
            for t in range(two + 1, num_len):
                print(number[one], number[two], number[t])
                if number[one] + number[two] + number[t] == 0:
                    result += 1
    return result

순열 조합으로 푼 풀이 

def solution (number) :
    from itertools import combinations
    cnt = 0
    for i in combinations(number,3) :
        if sum(i) == 0 :
            cnt += 1
    return cnt