제출 #285748

#제출 시각아이디문제언어결과실행 시간메모리
285748DystoriaX팀들 (IOI15_teams)C++14
0 / 100
4065 ms17356 KiB
#include "teams.h"
#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int n;
int st[500010], en[500010];
int pt[500010];

void init(int N, int A[], int B[]) {
	n = N;

	for(int i = 0; i < n; i++) st[A[i]]++, en[B[i]]++;
}

int can(int M, int K[]) {
	long long sum = 0;
	for(int i = 0; i < M; i++) sum += K[i];

	if(sum > n) return 0;

	for(int i = 1; i <= n; i++) pt[i] = 0;
	for(int i = 0; i < M; i++) pt[K[i]] += K[i];

	long long cur, dec;

	cur = dec = 0;

	for(int i = 1; i <= n; i++){
		cur += st[i];

		if(cur < pt[i]) return 0;
		cur -= pt[i];
		dec += pt[i];

		if(dec >= en[i]) dec -= en[i];
		else cur -= en[i] - dec, dec = 0;
	}

	return 1;
}
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