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  1. f(char*s){for(;*s;s++)*s=isalpha(*s)?*s+4^31:*s;}
  2.  
  3. int main (int argc, char **argv) {
  4.     int i;
  5.  
  6.     char t1[] = "abcdefghijklmnopqrstuvwxyz";
  7.     char t2[] = "Programming Puzzles & Code Golf";
  8.     char t3[] = "Hello, World!";
  9.  
  10.     f(t1); printf("%s\n", t1);
  11.     f(t2); printf("%s\n", t2);
  12.     f(t3); printf("%s\n", t3);
  13.  
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0s 2112KB
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zyxwvutsrqponmlkjihgfedcba
Kiltiznnrmt Kfaaovh & Xlwv Tlou
Svool, Dliow!
https://ideone.com/L5v8YF
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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