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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int BuscaBinaria(int v[], int inicio, int fim, int valor) {
  5.     int meio = (inicio + fim) / 2;
  6.     if (v[meio] == valor) return meio;
  7.     if (fim == inicio) return -1;
  8.     if (v[meio] > valor) return BuscaBinaria(v, inicio, meio - 1, valor);
  9.     return BuscaBinaria(v, inicio + 1, meio, valor);
  10. }
  11.  
  12. int main() {
  13.     int tam, valor;
  14.     printf("Qual o tamanho do vetor: ");
  15.     scanf("%d", &tam);
  16.     int v[tam], i;
  17.     printf("Informe os valores do vetor:\n");
  18.     for (i = 0; i < tam; i++) {
  19.         scanf("%d", &v[i]);
  20.     }
  21.     printf("Informe o numero a ser buscado: ");
  22.     scanf("%d", &valor);
  23.     int k = BuscaBinaria(v, 0, tam - 1, valor);
  24.     printf("%d", k);
  25. }
Success #stdin #stdout 0s 2172KB
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stdout
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Qual o tamanho do vetor: Informe os valores do vetor:
Informe o numero a ser buscado: 3
https://ideone.com/ugWXwl
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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