fork download
copy 
  1. /******************************************************************************
  2.  
  3. Welcome to GDB Online.
  4. GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
  5. C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
  6. Code, Compile, Run and Debug online from anywhere in world.
  7.  
  8. *******************************************************************************/
  9. #include <stdio.h>
  10.  
  11. int main()
  12. {
  13.     int n = 5;
  14.     for(int i = n; i >= 1; i--){
  15.         for(int j = 1; j <= n; j++){
  16.             if(j == 1 || i == j || i == 1){
  17.                 printf("%d ", j);
  18.             }
  19.             else{printf("  ");}
  20.         }
  21.         for(int j = n - 1; j >= 1; j--){
  22.             if(j == 1 || i == j || i == 1){
  23.                 printf("%d ", j);
  24.             }
  25.             else{printf("  ");}
  26.         }
  27.         printf("\n");
  28.     }
  29.  
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0s 5296KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1       5       1 
1     4   4     1 
1   3       3   1 
1 2           2 1 
1 2 3 4 5 4 3 2 1
https://ideone.com/2cDWrz
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!