Submission #255870

#	Time	Username	Problem	Language	Result	Execution time	Memory
255870		imeimi2000	popa (BOI18_popa)	C++17	100 / 100	123 ms	748 KiB

popa

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_map>
#include <functional>
#include <cstring>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include "popa.h"
 
using namespace std;
typedef long long llong;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<llong, llong> pll;
 
int n;
 
int solve(int N, int * L, int * R) {
    n = N;
    for (int i = 0; i < n; ++i) L[i] = R[i] = -1;
    vector<int> st;
    st.push_back(0);
    for (int i = 1; i < n; ++i) {
        while (!st.empty() && query(st.back(), i, i, i)) {
            R[st.back()] = L[i];
            L[i] = st.back();
            st.pop_back();
        }
        if (!st.empty()) R[st.back()] = i;
        st.push_back(i);
    }
    return st[0];
}

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