题解 | 单组_二维数组
单组_二维数组
https://www.nowcoder.com/practice/4df606b6c3764d9c969f8759c8a4807b
import sys
n,m = map(int,input().strip().split())
total = 0
for line in sys.stdin:
li = list(map(int,line.strip().split(" ")))
total = total + sum(li)
print(total)
