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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. int find(string a[], int low, int high, string target){
  7.     int mid = low + (high-low)/2;
  8.     if (low > high)
  9.     	return -1;
  10.     if (a[mid] == target)
  11.     	return mid;
  12.  
  13.     if (a[mid] == ""){
  14.     	int tmp1 = mid -1 ;
  15.     	int tmp2 = mid +1 ;
  16.     	while (a[tmp1] == "" &&  tmp1>0)
  17.     	    tmp1--;
  18.   	    while (a[tmp2] == "" && tmp2 < 12)
  19.   	        tmp2++;
  20.   	    if (target <= a[tmp1]){
  21.   		find(a, low, tmp1, target);
  22.   	    }else{
  23.   		find(a, tmp2, high, target);
  24.   	    }
  25.   	}
  26.  
  27.   	std::cout << "find did not return a value.\n" ;
  28.  }
  29.  
  30. int main(){
  31. 	string s[13] = {"at", "", "", "", "ball", "", "", "car", "", "", "dad", "", ""};
  32. 	cout<< find(s, 0, 12, "car");
  33. }
  34.  
  35.  
Success #stdin #stdout 0s 3476KB
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stdin
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Standard input is empty
stdout
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find did not return a value.
find did not return a value.
134521504
https://ideone.com/YiAtfq
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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