Submission #1163678

#	Time	Username	Problem	Language	Result	Execution time	Memory
1163678		asli_bg	Akcija (COCI21_akcija)	C++20	50 / 110	2 ms	652 KiB

Main

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

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;

#define int long long

typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<int> vi;
typedef vector<bool> vb;

#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)

#define all(x) x.begin(),x.end()
#define fi first
#define se second
#define pb push_back
#define sp <<" "<<

#define cont(x) for(auto el:x) cout<<el<<' ';cout<<endl;
#define contp(x) for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;

#define DEBUG(x) cout<<#x sp x<<endl;
#define carp(x,y) ((x%MOD)*(y%MOD))%MOD
#define topla(x,y) ((x%MOD)+(y%MOD))%MOD
#define mid (l+r)/2

const int MAXN=2e3+5;
const int INF=1e18;

vii tut[MAXN];
bool used[MAXN];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n,k;
    cin>>n>>k;
    vii a(n+1);
    FORE(i,1,n+1){
        cin>>a[i].fi>>a[i].se;
        tut[a[i].se].pb({a[i].fi,i});
    }

    vii vec(n+1);
    priority_queue<pii> pq;

    int curt=n;
    pii ans={0,0};
    while(curt){
        for(auto el:tut[curt]) pq.push({-el.fi,el.se});
        if(!pq.empty()){
            int cost=pq.top().fi;
            int ind=pq.top().se;
            ans.fi++;
            ans.se+=cost*-1;
            vec[curt]={cost*-1,ind};
            used[ind]=true;
            pq.pop();
        }
        curt--;
    }

    cout<<ans.fi sp ans.se<<endl;

    set<pii> ss;
    
    int ii=1;
    bool f=true;
    while(ii<k){
        if(!f) {cout<<0 sp 0<<endl;ii++;continue;}

        while(!pq.empty()) pq.pop();

        //değişim yapılabiliyor mu
        curt=n;
        int res=INF;
        int temp=-1;
        int temp2=-1;

        while(curt){
            for(auto el:tut[curt]){
                if(!used[el.se]) pq.push({-el.fi,el.se});
            }

            while(!pq.empty() and ss.count({min(vec[curt].se,pq.top().se),max(vec[curt].se,pq.top().se)})) pq.pop();
            if(!pq.empty() and vec[curt].se!=0){ //değişim yapılabilir
                int cost=pq.top().fi;
                int ind=pq.top().se;

                if(res>cost*-1-vec[curt].fi){
                    res=cost*-1-vec[curt].fi;
                    temp=vec[curt].se;
                    temp2=ind;
                }
            }
            curt--;
        }

        if(temp!=-1){ //değişim yapılabiliyorsa
            if(temp>temp2) swap(temp,temp2);
            ss.insert({temp,temp2});
            cout<<ans.fi sp ans.se+res<<endl;
        }
        else{
            //çıkarma yapmalıyım
            FORE(i,1,n+1) used[i]=false;
            res=0;
            temp=-1;
            int tt=0;
            FORE(i,1,n+1){
                used[vec[i].se]=true;
                if(vec[i].fi>res){
                    res=vec[i].fi;
                    temp=vec[i].se;
                    tt=i;
                }
            }

            if(temp!=-1){ //çıkarma yapabiliyorum
                used[temp]=false;
                vec[tt]={0,0};
                ans.se-=res;
                ans.fi-=1;
                cout<<ans.fi sp ans.se<<endl;
            }
            else{
                f=false;
                cout<<0 sp 0<<endl;
            }

            ss.clear();
        }
        ii++;
    }
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 30
• Subtask 6: 0 / 20