Submission #234695

#	Time	Username	Problem	Language	Result	Execution time	Memory
234695		Nodir_Bobiev	Hotter Colder (IOI10_hottercolder)	C++14	82 / 100	714 ms	24440 KiB

hottercolder

#include "grader.h"
#include <algorithm>
using namespace std;
int solve( int l, int r, int prevRequest){
   if( l == r ) return l;
   if( r - l == 1 ){
      Guess(l);
      int res2 = Guess(r);
      if( res2 == 1)
         return r;
      return l;
   }
   int m = (l+r)>>1;
   if( m == prevRequest ) m --;
   int res1 = Guess(m);
   if( res1 == 0 ){
      return (m+prevRequest)/2;
   }
   if( res1 == 1 ){
      if( prevRequest < m )
         return solve(max(l,(m+prevRequest)/2+1), r, m);
      else
         return solve(l, min(r, (m+prevRequest-1)/2), m);
   }
   
   if( prevRequest < m ){
      return solve(l, (prevRequest+m-1)/2, m);
   }else{
      return solve((prevRequest+m)/2+1, r, m);
   }
   
}
int HC(int N){
   Guess(N);
   return solve(1, N, N);   
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 7 / 25