Submission #262173

#	Time	Username	Problem	Language	Result	Execution time	Memory
262173		amiratou	Teams (IOI15_teams)	C++14	21 / 100	4106 ms	365160 KiB

teams

#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long

int n,a[100005],b[100005];
vector<int> vec[100005];
bitset<100005> matched;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void init(int N, int A[], int B[]) {
	n=N;
	for (int i = 0; i < n; ++i)
	{
		a[i]=A[i];
		b[i]=B[i];
	}
	for (int i = 1; i <= n; ++i)
		for (int j = 0; j < n; ++j)
			if(a[j]<=i && i<=b[j])vec[i].pb(j);	
}

int can(int M, int K[]) {
	sort(K,K+M);
	matched=0;
	for (int i = 0; i < M; ++i)
	{
		for (int j = 0; j < K[i]; ++j)
		{
			int mini=(int)1e9,idx;
			for(auto it:vec[K[i]]){
				if(matched[it])continue;
				if((b[it]-K[i])<mini){
					mini=b[it]-K[i];
					idx=it;
				}
			}
			if(mini==(int)(1e9))return 0;
			matched[idx]=1;
		}
	}
	return 1;
}

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