矩阵求和-C语言

解题思路:

注意事项:

参考代码:

#include<stdio.h>

int main (){

    int a[3][3],i,j;

    int sum=0,count=0;

    for(i=0;i<3;i++){

        for(j=0;j<3;j++){

            scanf("%d",&a[i][j]);

            if(i==j)

                sum+=a[i][j];

            if(i+j==2)

                count+=a[i][j];

        }

}

    printf("%d %d",sum,count);

    return 0;

}