Pyramid Problem No. 92

 Q.92 Print equilateral triangle number as:

     5
    454
   34543
  2345432
 123454321

Solving in C:

#include <stdio.h>
    int main(){
        int row,col;
        for(row=5; row>=1; row--){
            for(col=1; col<=5; col++){
                if(row>col)  printf(" ");
                else printf("%d",col);
            }
            for(col=5-1; col>row-1; col--) printf("%d",col);
            printf("\n");
        }
        return 0;
    }