Submission #1188125

#	Time	Username	Problem	Language	Result	Execution time	Memory
1188125		yhx3	Stone Arranging 2 (JOI23_ho_t1)	C++20	100 / 100	168 ms	31980 KiB

Main

#include <iostream>
#include <bits/stdc++.h>
#include <iomanip>
#include <numeric>
 
using namespace std;
 
#define ll long long
 
bool comp(const pair<ll,ll> &a,pair<ll,ll> &vl)
{
    return a.second > vl.first;
}
 
bool scomp(const pair<ll,ll> &a,pair<ll,ll> &vl)
{
    return a.first >= vl.first;
}
 

void solve() {
    int n;
    cin >> n;
    vector<int> a(n);
    map<int,set<int>> mp;
    for (int i = 0; i < n; i++)
    {
        cin >> a[i];
        mp[a[i]].insert(i);
    }
    
    vector<int> ans(n);
    pair<int,int> oper = {-1,-1};
    for (int i = 0; i < n; i++)
    {
        if (oper.first == -1 || oper.second < i) {
            oper = {-1,-1};
            if (mp[a[i]].size() >= 2) {
                oper.first = a[i];
                oper.second = *mp[a[i]].rbegin();
            }
            ans[i] = a[i];
        } else {
            ans[i] = oper.first;
            mp[a[i]].erase(i);
        }
    }
    for (int i = 0; i < n; i++)
    {
        cout << ans[i] << " ";
    }
    cout << '\n';
    
}

int main() {
    ios_base::sync_with_stdio(false);
    int t = 1;
    // cin>>t;

    while(t--) {
        solve();
    }
    return 0;

}

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