Submission #937891

#	Time	Username	Problem	Language	Result	Execution time	Memory
937891		danikoynov	Teams (IOI15_teams)	C++14	21 / 100	4053 ms	10836 KiB

teams

#include "teams.h"

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

struct segment
{
    int l, r;

    segment(int _l = 0, int _r = 0)
    {
        l = _l;
        r = _r;
    }
};

const int maxn = 5e5 + 10;

int n;
segment s[maxn];
void init(int N, int A[], int B[])
{
    n = N;
    for (int i = 1; i <= n; i ++)
    {
        s[i] = segment(A[i - 1], B[i - 1]);
    }
}


int zeta(int a, int b)
{
    int cnt = 0;
    for (int i = 1; i <= n; i ++)
    {
        if (s[i].l <= a && s[i].r >= a)
            continue;
        if (s[i].l <= b && s[i].r >= b)
            cnt ++;
    }
    return cnt;
}

int dp[maxn];
int can(int M, int K[])
{
    sort(K, K + M);

    for (int i = 0; i < M; i ++)
    {
        dp[i] = zeta(0, K[i]) - K[i];
        for (int j = 0; j < i; j ++)
        {
            dp[i] = min(dp[i], dp[j] + zeta(K[j], K[i]) - K[i]);
        }
        if (dp[i] < 0)
            return 0;
    }
    return 1;
}

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