第一题ac代码 import numpy import sys mn = map(int, sys.stdin.readline().strip().split()) N, M = mn[0], mn[1] progress = [] for i in range(N): progress.append(map(int, sys.stdin.readline().strip().split())) array = numpy.array(progress) index = array.argmax(axis=0) ans = 0 for i in range(len(index)): ans += progress[index[i]][i] print ans