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  1.  
  2. #include <stdio.h>
  3. #include <string.h>
  4.  
  5. int main() {
  6.     char str[100];
  7.     char *p, *q;
  8.  
  9.     printf("Enter a string: ");
  10.     fgets(str, sizeof(str), stdin);
  11.  
  12.     // Remove newline
  13.     str[strcspn(str, "\n")] = '\0';
  14.  
  15.     p = str;
  16.  
  17.     while (*p != '\0') {
  18.         int count = 0;
  19.         q = str;
  20.  
  21.         // Count occurrences of *p
  22.         while (*q != '\0') {
  23.             if (*p == *q)
  24.                 count++;
  25.             q++;
  26.         }
  27.  
  28.         // If repeated, remove using memmove
  29.         if (count > 1) {
  30.             memmove(p, p + 1, strlen(p));
  31.         } else {
  32.             p++;  // Move to next character only if not deleted
  33.         }
  34.     }
  35.  
  36.     printf("Non-repeated characters: %s\n", str);
  37.  
  38.     return 0;
  39. }
Success #stdin #stdout 0s 5264KB
comments (?)
stdin
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Banana
stdout
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Enter a string: Non-repeated characters: Bna
https://ideone.com/aWbP7L
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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