Code:

#include<conio.h>

#include<stdio.h>

main( )

{

int a[4][4],i,j,c;

clrscr( );

printf(“enter which number you want;”);

scanf(“%d”,&c);

for(i=0;i<4;i++)

for(j=0;j<4;j++)

if(i+j= =3)

a[i]]j]=c;

else

a[i][j]=0

for(i=0;i<4;i++)

{

for(j=0;j<4;j++)

printf(“%d”,a[i][j]);

printf(“\n”);

}

getch( );

}