import sysinput = sys.stdin.readlineN, M = map(int, input().split())numList = list(map(int, input().split()))numList.sort()box = []def backTracking(depth): if depth == M: print(' '.join(map(str, box))) return for i in range(N): if not numList[i] in box: box.append(numList[i]) backTracking(depth + 1) box.pop()backTracking(0) 앞선 N과 M ..
