Submission #119528

#	Time	Username	Problem	Language	Result	Execution time	Memory
119528		Plurm	Hotter Colder (IOI10_hottercolder)	C++11	50 / 100	2557 ms	8440 KiB

hottercolder

#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 / 25
• Subtask 2: 25 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25