题解 | 多组_二维数组_T组形式
多组_二维数组_T组形式
https://www.nowcoder.com/practice/fe1e902e076b46dd82e7d42e12617893
a = int(input())
for i in range(a):
b = list(map(int,input().split()))
total = 0
for i in range(b[0]):
c = list(map(int, input().split()))
for j in range(b[1]):
total += c[j]
print(total)
