Submission #866609

#	Time	Username	Problem	Language	Result	Execution time	Memory
866609		yeediot	Stone Arranging 2 (JOI23_ho_t1)	C++14	100 / 100	181 ms	20660 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
//Don't open the standings during contests.
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
map<int,int>mp;
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vector<pii>num;
    for(int i=0;i<n;i++){
        int x;
        cin>>x;
        if(mp[x]){
            int sum=0;
            while(num.back().F!=x){
                sum+=num.back().S;
                mp[num.back().F]--;
                num.pop_back();
            }
            num.back().S+=sum+1;
        }
        else{
            num.pb({x,1});
            mp[x]=1;
        }
    }
    for(auto j:num){
        for(int i=0;i<j.S;i++){
            cout<<j.F<<'\n';
        }
    }
}
 /*
 input:
 
 */

Compilation message (stderr)

Main.cpp: In function 'void setIO(std::string)':
Main.cpp:17:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:18:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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