题解 | 单组_二维数组
单组_二维数组
https://www.nowcoder.com/practice/4df606b6c3764d9c969f8759c8a4807b
n, m = map(int, input().split())
total = 0
for _ in range(n):
row = list(map(int, input().split()))
total += sum(row)
print(total)
- row 先算每列的
- total再算每行的
