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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. void f(char *str) {
  5.     for (int i = 0; str[i] != '\0'; i++) {
  6.         if (str[i] > 64 && str[i] <= 90) { // A-Z の範囲
  7.             str[i] = ((str[i] - 65 + 13 + i) % 26) + 65;
  8.         }
  9.     }
  10. }
  11.  
  12. int main() {
  13.     int a = 1197424961;
  14.     int b = 4672071;
  15.     char *str = (char *)&a; // aとbのメモリ領域を文字列として扱う
  16.  
  17.     f(str);
  18.     printf("Alpaca{%s}\n", str);
  19.     return 0;
  20. }
Success #stdin #stdout 0s 5288KB
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Standard input is empty
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Alpaca{NO_W}
https://ideone.com/kXTfew
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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