제출 #298566

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
2985662020-09-13 07:14:01medk커다란 상품 (IOI17_prize)C++14
20 / 100
87 ms384 KiB
#include <bits/stdc++.h>
#include "prize.h"
#define ll long long
#define pb push_back
#define x first
#define y second
#define sz(u) (int)(u.size())
#define all(u) u.begin(),u.end()
using namespace std;
vector<int> tmp;
int find_best(int N){
int ptr=0;
int curL=1, curR=1;
while(1){
assert(ptr<N);
tmp=ask(ptr);
if(tmp[0]+tmp[1]==0) break;
curL=tmp[0];
curR=tmp[1];
int l=ptr,r=N-1;
while(l<r){
int md=(l+r+1)/2;
tmp=ask(md);
if(tmp[0]!=curL || tmp[1]!=curR) r=md-1;
else l=md;
}
 
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