7-9

#include<stdio.h>
int main(void)
{
    int i,j,n,temp;
    int a[6][6];


    printf("Enter n:");
    scanf("%d",&n);
    for(i = 0;i < n;i++)
        for(j = 0;j < n;j++)
            a[i][j] = i * n + j + 1;

    for(i = 0;i < n;i++)
        for(j = 0;j < n;j++)
            if(i <= j){
                temp = a[i][j];
                a[i][j] = a[j][i];
                a[j][i] = temp;
            }

    for(i = 0;i < n;i++){
        for(j = 0;j < n;j++)

            printf("%4d",a[i][j]);
        printf("\n");
    }

    return 0;
}