Submission #332733

#	Time	Username	Problem	Language	Result	Execution time	Memory
332733		limabeans	Exhibition (JOI19_ho_t2)	C++17	50 / 100	199 ms	274436 KiB

joi2019_ho_t2

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl





using ll = long long;





const int inf = 2e9;




void print(vector<int> a, int n) {
    for (int i=0; i<n; i++) {
	cout<<a[i]<<" ";
    }
    cout<<endl;
}

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


    
    int n, m;
    cin>>n>>m;
    
    vector<pair<int,int>> a(n); // (val, size)
    
    for (int i=0; i<n; i++) {
	cin>>a[i].second>>a[i].first;
    }

    sort(a.begin(), a.end());

    vector<int> w(m);
    for (int i=0; i<m; i++) {
	cin>>w[i];
    }

    sort(w.begin(),w.end());

    vector<vector<int>> dp(n+1, vector<int>(m+1, 0));

    for (int i=1; i<=n; i++) {
	for (int j=1; j<=m; j++) {
	    int size = a[i-1].second;
	    int frame = w[j-1];
	    dp[i][j] = max({dp[i-1][j], dp[i][j-1], dp[i-1][j-1]+(size<=frame)});
	}
    }

    cout<<dp[n][m]<<endl;

    return 0;
}

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