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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.   int i,j;
  6.   char str[1000];
  7.  
  8.   scanf("%s",str); // input the string
  9.   for (i = 0; str[i] != '\0'; i++)
  10.   {
  11.     for (j = i + 1; str[j] != '\0'; j++)
  12.     {
  13.       if (str[i] == str[j]) // compare
  14.       {
  15.         printf("%c", str[i]);
  16.         return 0;
  17.       }
  18.     }
  19.   }
  20. }
Success #stdin #stdout 0.01s 5340KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/qrstPi
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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