제출 #1342886

#제출 시각아이디문제언어결과실행 시간메모리
1342886WarinchaiJelly Flavours (IOI20_jelly)C++17
100 / 100
75 ms628 KiB
#include "jelly.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;

pair<int,int> dp[2][10005];

int find_maximum_unique(int x, int y, std::vector<int> a, std::vector<int> b) {
	int n = a.size();
    int cur=0;
    vector<pair<int,int>>v;
    for(int i=0;i<n;i++)v.push_back({a[i],b[i]});
    sort(v.begin(),v.end());
    for(int i=0;i<n;i++){
        cur^=1;
        for(int j=0;j<=y;j++)dp[cur][j]=dp[cur^1][j];
        for(int j=0;j<=y;j++){
            if(j+v[i].second<=y){
                auto x=dp[cur^1][j];
                x.first++;
                dp[cur][j+v[i].second]=max(dp[cur][j+v[i].second],x);
            }
            auto temp=dp[cur^1][j];
            temp.first++;
            temp.second-=v[i].first;
            if(-temp.second<=x)dp[cur][j]=max(dp[cur][j],temp);
        }
    }
    int ans=0;
    for(int j=0;j<=y;j++){
        //cerr<<"j:"<<j<<" "<<dp[cur][j].first<<' '<<-dp[cur][j].second<<"\n";
        ans=max(ans,dp[cur][j].first);
    }
	return ans;
}
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