Submission #762126

#	Time	Username	Problem	Language	Result	Execution time	Memory
762126		MarwenElarbi	Stone Arranging 2 (JOI23_ho_t1)	C++14	100 / 100	334 ms	16880 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define vi vector<int>
#define ve vector
#define ll long long
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define onbit __builtin_popcount
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e18
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
using namespace std;
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const ll MOD = 1e9+9;
const int nax = 2e5+5;
const int MAX_VAL = 1e6;
double PI=3.14159265359;
int arx[8]={1,1,0,-1,-1,-1, 0, 1};
int ary[8]={0,1,1, 1, 0,-1,-1,-1};
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
int main(){
    optimise;
    /*#ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif*/
    //setIO("redistricting");
    int n;
    cin>>n;
    stack<pair<int,int>> s;
    vii res;
    multiset<int> tab;
    for (int i = 0; i < n; ++i)
    {
        int x;
        cin>>x;
        while(tab.count(x)){
            tab.erase(s.top().se);
            s.pop();
        }
        tab.insert(x);
        s.push({i,x});
    }
    while(!s.empty()){
        res.pb(s.top());
        s.pop();
    }
    reverse(res.begin(),res.end());
    int j=0;
    for (int i = 0; i < n; ++i)
    {
        while(i<=res[j].fi){
            cout << res[j].se<<endl;
            i++;
        }
        j++;
        if (j<res.size()&&i<=res[j].fi) cout << res[j].se <<endl;
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:72:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         if (j<res.size()&&i<=res[j].fi) cout << res[j].se <<endl;
      |             ~^~~~~~~~~~~
Main.cpp: In function 'void setIO(std::string)':
Main.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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