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  1. #include<iostream>
  2. using namespace std;
  3. int main(){
  4.  
  5. 	// find right position in the array
  6. 	cout<<"Enter the target\n";
  7. 	int target;
  8. 	cin>>target;
  9. 	int arr[8]={1,4,6,8,10,14,16,18};
  10. 	int start=0,end=7;
  11. 	int pos=-1;
  12. 	while(start<=end){
  13. 		int mid=start+(end-start)/2;
  14. 		if(arr[mid]==target){
  15. 			pos=mid;
  16. 		}else if(arr[mid]<target){
  17. 			start=mid+1;
  18. 		}else{
  19. 			pos=mid;
  20. 			end=mid-1;
  21. 		}
  22. 	}
  23.  
  24. 	cout<<pos;
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 5308KB
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stdin
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stdout
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Enter the target
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https://ideone.com/yxcVfx
language:
C++ (gcc 8.3)
created:
5 hours ago
visibility:
public

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