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Submission #119528

# Submission time Handle Problem Language Result Execution time Memory
119528 2019-06-21T10:56:39 Z Plurm Hotter Colder (IOI10_hottercolder) C++11
50 / 100
 2557 ms 8440 KB 
#include "grader.h"
#include <cstdlib>
#include <ctime>

int HC(int N){
    srand(time(NULL));
    int lo = 1;
    int hi = N;
    int last = -1;
    while(lo < hi){
        if(last == lo){
            int r = Guess(hi);
            last = hi;
            if(r > 0){
                lo = (lo + hi) / 2 + 1;
            }else{
                hi = (lo + hi) / 2;
            }
        }else if(last == hi){
            int r = Guess(lo);
            last = lo;
            if(r < 0){
                lo = (lo + hi) / 2 + 1;
            }else{
                hi = (lo + hi) / 2;
            }
        }else{
            if(rand() % 2){
                last = lo;
                Guess(lo);
            }else{
                last = hi;
                Guess(hi);
            }
        }
    }
    return lo;
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 241 ms 1272 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 241 ms 1272 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 246 ms 1432 KB Output isn't correct

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 2557 ms 8440 KB Output isn't correct - alpha = 0.000000000000