Submission #1084913

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084913		guagua0407	Teams (IOI15_teams)	C++17	34 / 100	4046 ms	53428 KiB

teams

#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int n;
vector<int> a,b;

void init(int N, int A[], int B[]) {
    n=N;
    for(int i=0;i<n;i++){
        a.push_back(A[i]);
        b.push_back(B[i]);
    }
}

int can(int M, int K[]) {
    sort(K,K+M);
    vector<vector<int>> st(n+1),en(n+1);
    for(int i=0;i<n;i++){
        st[a[i]].push_back(i);
        en[b[i]].push_back(i);
    }
    set<pair<int,int>> S;
    int cnt=0;
    for(int i=1;i<=n;i++){
        for(auto v:st[i]){
            S.insert({b[v],v});
        }
        while(cnt<M and K[cnt]==i){
            for(int j=0;j<i;j++){
                if(S.empty()){
                    return 0;
                }
                S.erase(S.begin());
            }
            cnt++;
        }
        for(auto v:en[i]){
            if(S.find({b[v],v})!=S.end()){
                S.erase({b[v],v});
            }
        }
    }
	return 1;
}

• Subtask 1: 21 / 21
• Subtask 2: 13 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23