백준 15665 파이썬 python : N과 M (11) @@황소처럼 우직하게@@

n, m = map(int, input().split())
num_list = list(map(int, input().split()))
num_list = list(set(num_list))
num_list.sort()

anses = []
a = [0 for i in range(m)]

def go(selected, m):
    if selected == m:
        anses.append(' '.join(map(str, a)))
        return
    for i in range(len(num_list)):
        a[selected] = num_list[i]
        go(selected + 1, m)


go(0, m)
print(anses[0])
for i in range(1, len(anses)):
    if anses[i - 1] != anses[i]:
        print(anses[i])

조금만 더 화이팅!