제출 #774650

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
774650		vjudge1	Stone Arranging 2 (JOI23_ho_t1)	C++17	100 / 100	151 ms	14072 KiB

Main

/*
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,sse4.2,popcnt,lzcnt")
*/

#include <bits/stdc++.h>
#define taskname ""
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ll long long
#define ld long double
#define pb push_back
#define ff first
#define ss second
#define pii pair<int, int>
#define vi vector<int>
#define vii vector<pii>
#define isz(x) (int)x.size()
using namespace std;

const int mxN = 2e5 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18;

int n;
map<int, int> mp;
vector<pair<int, pii>> cope;

void solve() {
    cin >> n;
    for(int i = 1; i <= n; ++i) {
        int val; cin >> val;
        int cnt = mp[val];
        if(cnt) {
            while(cope.back().ff != val) {
                --mp[cope.back().ff];
                cope.pop_back();
            }
            int l = cope.back().ss.ff;
            cope.pop_back();
            cope.pb({val, {l, i}});
        }
        else {
            mp[val]++;
            cope.pb({val, {i, i}});
        }
    }
    for(auto tmp : cope) {
        for(int i = tmp.ss.ff; i <= tmp.ss.ss; ++i)
            cout << tmp.ff << " ";
    }
    cout << endl;
}

signed main() {

#ifndef CDuongg
    if(fopen(taskname".inp", "r"))
        assert(freopen(taskname".inp", "r", stdin)), assert(freopen(taskname".out", "w", stdout));
#else
    freopen("bai3.inp", "r", stdin);
    freopen("bai3.out", "w", stdout);
    auto start = chrono::high_resolution_clock::now();
#endif

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int t = 1; //cin >> t;
    while(t--) solve();

#ifdef CDuongg
    auto end = chrono::high_resolution_clock::now();
    cout << "\n"; for(int i = 1; i <= 100; ++i) cout << '=';
    cout << "\nExecution time: " << chrono::duration_cast<chrono::milliseconds> (end - start).count() << "[ms]" << endl;
#endif

}

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40