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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. #define MAX 30
  5.  
  6. int ocorrencias(char palavra[], char letra) {
  7.     if (palavra[0] == '\0') return 0;
  8.     return (letra == palavra[0]) + ocorrencias(&(palavra[1]), letra);
  9. }
  10.  
  11. int main() {
  12.     char palavra[MAX];
  13.     char letra;
  14.  
  15.     scanf("%s %c", palavra, &letra);
  16.  
  17.     int ocorre = ocorrencias(palavra, letra);
  18.     printf("%d", ocorre);
  19.  
  20.     return 0;
  21. }
  22.  
  23.  
Success #stdin #stdout 0s 10320KB
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https://ideone.com/2qR1hI
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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