第一题:旅游路线 100% import os T = int(input()) while T > 0: T-=1 x = input().split(' ') x = [int(i) for i in x] n, m, k = x[0], x[1], x[2] mm = [[0]*n for i in range(n)] for i in range(m): x = input().split(' ') x = [int(j) for j in x] u, v = x[0], x[1...