C语言求解不会，帮助一下我

#include <stdio.h>

int main()

{
    int i,j;
    int a[5][2] = {{86,78},{100,90},{75,80},{88,65},{65,85}};
    for(i = 0;i < 5;i++){
        for(j = 0;j < 2;j++){
            printf("%d ",a[i][j]);
        }
        printf("\n");
    }
}