题解 | 单组_二维数组
单组_二维数组
https://www.nowcoder.com/practice/4df606b6c3764d9c969f8759c8a4807b
#两个for循环
total_sum = 0
cloum=[]
n, m = map(int, input().split())
for i in range(n):
cloum=list(map(int,input().split()))
total_sum+=sum(cloum)
print(total_sum)
