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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     int n, cnt = 0, i, d, dd, f;
  6.     printf("n = ");
  7.     scanf("%d", &n);
  8.     if (n < 1) {
  9.         f = -1;
  10.     } else {
  11.         f = 1;
  12.     }
  13.     for (i = 1; i != n + f; i += f) {
  14.         d = i > 0 ? i : -i;
  15.         while (d) {
  16.             dd = d % 10;
  17.             if (dd == 3 || dd == 5) {
  18.                 dd = -1;
  19.                 break;
  20.             }
  21.             d /= 10;
  22.         }
  23.         if (dd >= 0) {
  24.             cnt++;
  25.         }
  26.     }
  27.     printf("%d\n", cnt);
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 1680KB
comments (?)
stdin 
-40
stdout 
n = 26
https://ideone.com/b1LLqF
language:
C (gcc 8.3)
created:
13 years ago
visibility:
secret

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