제출 #556705

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
556705		MohamedFaresNebili	Hotter Colder (IOI10_hottercolder)	C++14	50 / 100	553 ms	8000 KiB

hottercolder

#include <bits/stdc++.h>
#include "grader.h"
 
        using namespace std;
 
        using ll = long long;
        using ii = pair<ll, ll>;
        using vi = vector<int>;
 
        #define ff first
        #define ss second
        #define pb push_back
        #define all(x) (x).begin(), (x).end()
        #define lb lower_bound
        /// #define int ll
 
        const int oo = 1e9 + 7;
 
        int Guess(int v);
 
        int HC(int N) {
            int lo = 1, hi = N, pr = 1; Guess(1);
            while(lo <= hi) {
                if(lo == hi) return lo;
                int to = (lo + hi) / 2;
 
              	if(to == pr && to - 1 >= lo) to--;
              	if(to == pr && to + 1 <= hi) to++;
              	if(to == pr) return to;
 
                int r = Guess(to), md = abs(to - pr);
                if(md & 1) md++;
                if(to > pr) {
                    if(r == -1) hi = min(hi, to - md / 2);
                    if(r == 0) return (to + pr) / 2;
                    if(r == 1) lo = max(lo, pr + md / 2);
                }
                if(to < pr) {
                    if(r == -1) lo = max(lo, to + md / 2);
                    if(r == 0) return (to + pr) / 2;
                    if(r == 1) hi = min(hi, pr - md / 2);
                }
                pr = to;
            }
            return N;
        }

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25