Submission #774781

#	Time	Username	Problem	Language	Result	Execution time	Memory
774781		vjudge1	Stone Arranging 2 (JOI23_ho_t1)	C++17	100 / 100	128 ms	13272 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#define taskname "template"
#define ll long long
#define ld double
#define fi first
#define se second
#define vi vector<int>
#define pii pair<int,int> 
#define vii vector<pii>
#define vvi vector<vi>
#define pb push_back
#define eb emplace_back
#define PI acos((ld)-1)

typedef complex<ld> base;
typedef vector<base> vb;

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int MN=2e5+5;

int n;
int arr[MN],near[MN];
map<int,int> mp;

signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    /*
    freopen(taskname".inp","r",stdin);
    freopen(taskname".out","w",stdout);
    */

    cin>>n;
    for(int i=1;i<=n;++i){
        near[i]=-1;
        cin>>arr[i];
    }

    for(int i=1;i<=n;++i){
        if(mp.find(arr[i])!=mp.end()) near[mp[arr[i]]]=i;
        mp[arr[i]]=i;
    }

    // for(int i=1;i<=n;++i){
    //     cout<<near[i]<<' ';
    // }cout<<'\n';

    for(int i=1;i<=n;++i){
        cout<<arr[i]<<'\n';
        if(near[i]<0) continue;
        int idx=i+1;
        while(idx<near[i]){
            cout<<arr[i]<<'\n';
            ++idx;
        }
        --idx;
        // cout<<"Case "<<i<<": "<<idx+1<<'\n';
        i=idx;
    }
}

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