View Code of Problem 57

#include <stdio.h>
int main(){
   int i,j,n;
  scanf("%d",&n);
  for(i=1;i<=n;i++){
    for(j=0;j<n-i;j++)
      printf(" ");
    for(j=1;j<=i;j++)
      printf("%d",j);
    for(j=i-1;j>0;j--)
      printf("%d",j);
      printf("\n");
  }
  for(i=n-1;i>0;i--){
    for(j=0;j<n-i;j++)
      printf(" ");
    for(j=1;j<=i;j++)
      printf("%d",j);
    for(j=i-1;j>0;j--)
      printf("%d",j);
      printf("\n");
  }
}