Submission #769520

#	Time	Username	Problem	Language	Result	Execution time	Memory
769520		Ozy	Stone Arranging 2 (JOI23_ho_t1)	C++17	100 / 100	176 ms	20044 KiB

Main

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "
#define lli long long int
#define rep(i,a,b) for(int i = (a); i <= (b); i++)
#define repa(i,a,b) for(int i = (a); i >= (b); i--)
#define pll pair<lli,lli>

//para la deque
#define ai first
#define id second

lli n,a;
map<lli,lli> existe;
deque<pll> pila;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n;
    rep(i,1,n) {
        cin >> a;
        if (existe.find(a) == existe.end() || existe[a] == 0) {
            pila.push_back({a,i});
            existe[a] = 1;
            continue;
        }

        while (pila.back().ai != a) {
            existe[pila.back().ai] = 0;
            pila.pop_back();
        }

        pila.pop_back();
        pila.push_back({a,i});
    }

    rep(i,1,n) {
        cout << pila.front().ai << "\n";
        if (i == pila.front().id) pila.pop_front();
    }

    return 0;
}

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