Submission #1125225

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125225		omar1312	Stone Arranging 2 (JOI23_ho_t1)	C++20	60 / 100	179 ms	18412 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_multiset;
#define ll long long
#define pb push_back
#define all(x) x.begin(), x.end()
const int mod = 1000000007;
const int N = 200005;
ll a[N+2], dp[N+2], col[N+2];
void solve(){
    int n;
    cin>>n;
    for(int i = 0; i < n; i++){
        cin>>a[i];
        col[i] = a[i];
    }
    stack<array<ll, 2>> s;
    map<ll, ll> mp;
    vector<array<ll, 2>> v;
    for(int i = 0; i < n; i++){
        if(mp[a[i]]){
            while(s.top()[1] != a[i]){
                mp[s.top()[1]]--;
                s.pop();
            }
            v.pb({i, -s.top()[0]});
        }
        else{
            mp[a[i]]++;
            s.push({i, a[i]});
        }
    }
    sort(all(v));
    const ll sz = v.size();
    ll mnL = 0;
    if(sz != 0)mnL = v[sz - 1][0];
    for(int i = sz - 1; i >= 0; i--){
        for(int j = mnL; j >= -v[i][1]; j--){
            col[j] = col[v[i][0]];
        }
        mnL = min(mnL, -v[i][1] - 1);
    }
    for(int i = 0; i < n; i++){
        cout<<col[i]<<' ';
    }
}
int main(){
cin.tie(0)->sync_with_stdio(0);
    int tt = 1;
    //cin>>tt;
    while(tt--){
        solve();
        cout<<'\n';
    }
}

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 0 / 40