Submission #542011

#	Time	Username	Problem	Language	Result	Execution time	Memory
542011		Cookie197	Exhibition (JOI19_ho_t2)	C++17	50 / 100	9 ms	4308 KiB

joi2019_ho_t2

#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<map>

using namespace std;
#define ll long long
#define endl "\n"
#define mp make_pair
#define out(x) cout<< #x << " = " << x << endl
#define pii pair<int,int> 
#pragma GCC optimize("Ofast")

int n,m;
pii paint[1004];
int frame[1004];

int dp[1004][1004];
bool comp(pii a,pii b){
    if (a.second != b.second) return a.second < b.second;
    return a.first < b.first;
}
signed main(){
    ios::sync_with_stdio(false); cin.tie(0);
    cin>>n>>m;
    for (int i=1;i<=n;i++){
        cin>>paint[i].first>>paint[i].second;
    }
    for (int i=1;i<=m;i++) cin>>frame[i];
    sort(frame+1,frame+1+m);
    sort(paint+1,paint+1+n,comp);

    for (int i=1;i<=n;i++) for (int j=1;j<=m;j++){
        if (paint[i].first <= frame[j]) dp[i][j] = dp[i-1][j-1] + 1;
        dp[i][j] = max(dp[i][j], max(dp[i-1][j], dp[i][j-1]));
    }
    cout<<dp[n][m]<<endl;
}

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 0 / 50