fork download
copy 
  1. int l = 0;
  2. int r = 1000;
  3. int x = 1000;
  4. // l and r denote our current bounds: we know that l <= x <= r
  5. while(l<r) {
  6.   // we will ask about the number in the middle
  7.   int m = (l+r)/2;
  8.   // note: this is an integer division, thus e.g., for l=0, r=1 we get m=1/2=0
  9.   if(x <= m)
  10.     r = m;
  11.   else
  12.     l = m+1;
  13.   }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
prog.cpp:5:1: error: expected unqualified-id before ‘while’
 while(l<r) {
 ^~~~~
stdout
copy 
Standard output is empty
https://ideone.com/CSDVuy
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!