[codility] Distinct

app.codility.com/programmers/lessons/6-sorting/distinct/

Distinct coding task - Learn to Code - Codility

간단하게 중복 제거해주면 된다

python은 set을 사용해도 되고

def solution(A):
    # write your code in Python 3.6
    
    d = {}
    for i in A:
        d[i]=True
    return len(d.keys())
    # return(len(set(A)))