제출 #544137

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
544137		Sho10	popa (BOI18_popa)	C++17	100 / 100	83 ms	440 KiB

popa

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho
#include "popa.h"
using ll=long long;
using ld=long double;
int const INF=1000000005;
ll const LINF=1000000000000000005;
ll const mod=1000000007;
ld const PI=3.14159265359;
ll const MAX_N=3e5+5;
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
int solve(int n,int *left,int *right){
ll root=-1;
vector<ll>st;
for(ll i=0;i<n;i++)
{
    left[i]=right[i]=-1;
    while(st.size()&&query(st.back(),i,i,i)){
        right[st.back()]=left[i];
        left[i]=st.back();
        st.pop_back();
    }
    if(st.size()){
        right[st.back()]=i;
    }else root=i;
    st.pb(i);
}
return root;
}
/*
int32_t main(){
CODE_START;
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
*/

• Subtask 1: 37 / 37
• Subtask 2: 24 / 24
• Subtask 3: 39 / 39