Submission #285870

#	Time	Username	Problem	Language	Result	Execution time	Memory
285870		DystoriaX	Teams (IOI15_teams)	C++14	0 / 100	99 ms	23160 KiB

teams

#include "teams.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
#include <bitset>
// #include <numeric>

using namespace std;

int n;
int prefix[500010], suffix[500010];
vector<pair<int, int> > pt;

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

	for(int i = 0; i < n; i++){
		prefix[B[i]]++;
		suffix[A[i]]++;
	}

	for(int i = 1; i <= n; i++) prefix[i] += prefix[i - 1];
	for(int i = n - 1; i; i--) suffix[i] += suffix[i + 1];
}

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;

	sort(K, K + M);

	pt.clear();
	int cnt = K[0];
	for(int i = 1; i < M; i++){
		if(K[i] != K[i - 1]){
			pt.emplace_back(K[i - 1], cnt);
			cnt = K[i];
		} else {
			cnt += K[i];
		} 
	}

	pt.emplace_back(K[M - 1], cnt);

	int mn = n - prefix[pt[0].first - 1], pref = 0;
	for(auto &k : pt){
		if(pref + k.second + suffix[k.first + 1] > mn) return 0;
		mn = min(mn, n + pref - prefix[k.first - 1]);
		pref += k.second;
	}

	return 1;
}

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