题解 | 多组_二维数组_T组形式

#include <stdio.h>

int main() {
    int t = 0;//测试组数
    scanf("%d", &t);
    int i = 0;//遍历
    int j = 0;
    int l = 0;
    int k = 0;
    int m = 0;
    
    long arr2[1000][1000] = {0},sum = 0;//定义二维数组
    for (i = 0; i < t; i++)
    {   j = 0;//每次初始化
        l = 0;
        sum = 0;
        scanf("%d %d", &j, &l);
        for (k = 0; k < j; k++)//每一个小组内数组元素之和
        {
            for (m = 0; m < l; m++)
            {
                scanf("%ld", &arr2[k][m]);
                sum = sum + arr2[k][m];
            }
            
        }
        printf("%ld\n", sum);//打印
    }
    return 0;
}