제출 #1062560

#제출 시각아이디문제언어결과실행 시간메모리
1062560new_acc카니발 티켓 (IOI20_tickets)C++14
25 / 100
526 ms84768 KiB
#include "tickets.h"
#include <bits/stdc++.h>
#define se second
#define fi first
using namespace std;
typedef long long ll;
typedef vector<int> vi;
const int N=2e3+10;
int t[N];
pair<int,int> r[N];
ll find_maximum(int k, vector<vi> x) {
	int n=x.size();
	int m=x[0].size();
    vector<vi> ans=x;
    vector<pair<int,int>> pom;
    for(int i=1;i<=n;i++){
        r[i]={0,m-1};
        for(int i2=1;i2<=m;i2++){
            pom.push_back({x[i-1][i2-1],i});
        }
    }
    sort(pom.begin(),pom.end());
    ll res=0;
    for(int i=0;i<(int)pom.size()/2;i++){
        res-=pom[i].fi;
        t[pom[i].se]++;
    }
    for(int i=(int)pom.size()/2;i<(int)pom.size();i++) res+=pom[i].fi;
    for(int i=1;i<=k;i++){
        int il=0;
        vi zos;
        for(int i2=1;i2<=n;i2++){
            if(t[i2]==0){
                il++;
                ans[i2-1][r[i2].se--]=i-1;
                continue;
            }
            if(t[i2]==m-i+1){
                t[i2]--,il--;
                ans[i2-1][r[i2].fi++]=i-1;
                continue;
            }
            zos.push_back(i2);
        }
        for(auto u:zos){
            if(il>0){
                t[u]--,il--;
                ans[u-1][r[u].fi++]=i-1;
            }else{
                il++;
                ans[u-1][r[u].se--]=i-1;
            }
        }
    }
	allocate_tickets(ans);
	return res;
}
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