fork(1) download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int l = 0;
  7. 	int r = 1000;
  8. 	int x = 1000;
  9. 	// l and r denote our current bounds: we know that l <= x <= r
  10. 	while(l<r) {
  11. 	  // we will ask about the number in the middle
  12. 	  int m = (l+r)/2;
  13. 	  // note: this is an integer division, thus e.g., for l=0, r=1 we get m=1/2=0
  14. 	  if(x <= m)
  15. 	    r = m;
  16. 	  else
  17. 	    l = m+1;
  18. 	  }
  19. 	 cout << m;
  20. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:19:11: error: ‘m’ was not declared in this scope
   cout << m;
           ^
stdout
copy 
Standard output is empty
https://ideone.com/2r8VWv
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!