如何将两个二维数组联系起来求出结果

如何将两个二维数组联系起来求出结果sum


#include
#include
#include
int main(void){
    srand((unsigned)time(NULL));
    int i,j,a[i][j],b;
    
    for(b = 0; b < 25; ++b){
        printf("%d ",10+rand()%91);    
    } for(i=0;i<5;i++)
        for(j=0;j<5;j++)
    a[i][j]=10+rand()%91;
    int sum=a[0][0];
    int row,col;
    int arr[row][col];
     arr[row][col]=a[i][j];
     scanf("%d",arr[row][col]);
    for(row=0;row<4;row++)
        for(col=0;col<4;col++)
        {
            if(a[row+1][col]>a[row][col+1]){
                sum+=a[row+1][col];
            }else if(a[row][col+1]>a[row+1][col]){
                sum+=a[row][col+1];
            }
        }printf("%d",sum);
    
}