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  1. #include <stdio.h>
  2.  
  3. void g(int n, int c)
  4. {
  5.     if (n < 0)printf("-"),n *= -1;
  6.     if (n / 10)g(n / 10, c + 1);
  7.     printf("%d", n % 10);
  8.     if (c && (c % 3 == 0) && (n))printf(",");
  9. }
  10.  
  11. void f(int n)
  12. {
  13.     g(n, 0),printf("\n");
  14. }
  15. int main()
  16. {
  17.     f(-1234567);
  18.     f(-1234);
  19.     f(-1);
  20.     f(-0);
  21.     f(1234567);
  22.     f(1234);
  23.     f(1);
  24.     f(0);
  25.     return 0;
  26. }
  27.  
Success #stdin #stdout 0s 1788KB
comments (?)
stdin
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Standard input is empty
stdout
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-1,234,567
-1,234
-1
0
1,234,567
1,234
1
0
https://ideone.com/GTKQTB
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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