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Submission #234699

# Submission time Handle Problem Language Result Execution time Memory
234699 2020-05-25T08:48:21 Z Nodir_Bobiev Hotter Colder (IOI10_hottercolder) C++14
87 / 100
 701 ms 8180 KB 
#include "grader.h"
#include <algorithm>
using namespace std;
int solve( int l, int r, int prevRequest){
   if( l == r ) return l;
   
   int m = (l+r)>>1;
   if( m == prevRequest && m != l ) m=m-1;
   else if( m == prevRequest ) m=m+1;

   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, min(r, (prevRequest+m-1)/2), m);
   }else{
      return solve(max(l, (prevRequest+m)/2+1), r, m);
   }
   
}
int HC(int N){
   if( N == 1 ) return 1;
   Guess(N/2);
   return solve(1, N, N/2);   
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 1280 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 1280 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1408 KB Output is correct

Subtask #4
12.0 / 25.0

# Verdict Execution time Memory Grader output
1 Partially correct 701 ms 8180 KB Output is partially correct - alpha = 0.500000000000