ABC183 - Atcoder/Python精進のための解説メモ

x = int(input())
print(x if x >= 0 else 0)

sx, sy, gx, gy = map(int, input().split())
print((sx * gy + gx * sy) / (sy + gy))

import itertools
n, k = map(int, input().split())
ttt = [list(map(int, input().split())) for _ in range(n)]
ans = 0
for ord in itertools.permutations(range(2, n + 1), n - 1):
    cnt = 0
    curr = 0
    for i in ord:
        cnt += ttt[curr][i - 1]
        curr = i - 1
    cnt += ttt[curr][0]
    if cnt == k:
        ans += 1
print(ans)

まだ解いていません