Submission #559244

#	Time	Username	Problem	Language	Result	Execution time	Memory
559244		AriaH	Teams (IOI15_teams)	C++17	0 / 100	75 ms	14716 KiB

teams

#include "teams.h"
#pragma GCC optimize("Ofast")

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair < int, int > pii;
typedef pair < ll, ll > pll;

#define F first
#define S second
#define all(x) x.begin(), x.end()
#define SZ(x) (int)x.size()
#define Mp make_pair
#define endl "\n"
#define fast_io ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

const int N = 5e5 + 10;
const int LOG = 20;
const ll mod = 1e9 + 7;
const ll inf = 8e18;

int n, pre[N], suf[N];

ll ps[N];

void init(int _n, int A[], int B[])
{
	n = _n;
	for(int i = 0; i < n; i ++)
	{
		pre[B[i]] ++;
		suf[A[i]] ++;
	}
	for(int i = 1; i <= n + 1; i ++)
	{
		pre[i] += pre[i - 1];
	}
	for(int i = n + 1; i >= 0; i --)
	{
		suf[i] += suf[i + 1];
	}
	/*for(int i = 1; i <= n; i ++)
	{
		printf("i = %d pre = %d suf = %d\n", i, pre[i], suf[i]);
	}
	*/
}

int can(int m, int arr[])
{
	sort(arr, arr + m);
	ll sum = 0, Best = 0;
	for(int i = 0; i < m; i ++)
	{
		sum += arr[i];
		if(sum > n) return 0;
		ll now = sum + suf[arr[i] + 1] + Best;
		///printf("i = %d sum = %lld Best = %lld now = %lld\n", i, sum, Best, now);
		if(now > n) return 0;
		Best = max(Best, -sum + pre[arr[i] - 1]);
	}
	return 1;
}

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