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  1. #include <stdio.h>
  2. #include <ctype.h>
  3.  
  4. unsigned foo(char* src)
  5. {
  6.     unsigned total = 0;
  7.     for (unsigned idx = 0; *src; src++)
  8.         total += (++idx & 1) & isdigit(*src);
  9.     return total;
  10. }
  11. int main()
  12. {
  13.     char symbols[] = "lkdrjvf9ei48r4hjrfwh74h827h34r0239r34jt93o84rtj";
  14.         printf("Digits on even places found=%u", foo(symbols)); // здесь должен быть ответ, но он всегда ноль
  15.     return 0;
  16. }
Success #stdin #stdout 0s 5576KB
comments (?)
stdin
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Standard input is empty
stdout
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Digits on even places found=0
https://ideone.com/zjlLjS
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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