Submission #423115

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
4231152021-06-10 17:48:59PbezzThe Big Prize (IOI17_prize)C++14
20 / 100
1 ms328 KiB
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
typedef pair<ll,ll> pii;
const ll MAXN=2e5+5;
const ll INF=1e9+7;
int find_best(int n) {
ll i;
ll lo=0,hi=n-1,mid;
while(hi-lo>=2){
mid = lo+(hi-lo)/2;
vector<int> res = ask(mid);
if(res[0]+res[1]==0)return mid;
if(res[0]==1){
hi=mid;
}else{
lo=mid;
}
}
 
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