Submission #937821

#	Time	Username	Problem	Language	Result	Execution time	Memory
937821		danikoynov	Teams (IOI15_teams)	C++14	Compilation error	0 ms	0 KiB

teams

#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 10;

struct segment
{
    int l, r;

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

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]);
}

struct event
{
    int x, t, id;

    event(int _x = 0, int _t = 0, int _id = 0)
    {
        x = _x;
        t = _t;
        id = _id;
    }

};

bool cmp_event(event e1, event e2)
{
    if (e1.x != e2.x)
        return e1.x < e2.x;
    return e1.t < e2.t;
}

int dp[maxn];


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

int when_better(int j, int k, ll diff)
{
    int lf = k, rf = n;
    while(lf <= rf)
    {
        int mf = (lf + rf) / 2;
        if (zeta(j, mf) - zeta(k, mf) <= diff)
            rf = mf - 1;
        else
            lf = mf + 1;
    }
    return lf;
}

int can(int M, int K[])
{

    for (int i = 0; i < M; i ++)
    {
        dp[i] = 0;
    }

    sort(K, K + M);

    deque < int > dq;

    for (int i = 0; i < M; i ++)
    {
        while(dq.size() > 2)
        {
            int sz = dq.size();
            if (when_better(dq[sz - 2], dq))
        }
        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;


    /**vector < event > events;
    for (int i = 0; i < M; i ++)
    {
        events.push_back(event(K[i], 0, -1));
    }
    for (int i = 1; i <= n; i ++)
    {
        events.push_back(event(s[i].l, -1, i));
        events.push_back(event(s[i].r, 1, i));
    }

    sort(events.begin(), events.end(), cmp_event);

    set < pair < int, int > > act;
    for (event cur : events)
    {
        if (cur.t == -1)
        {
            act.insert({s[cur.id].r, cur.id});
        }
        else
        if (cur.t == 1)
        {
            if (act.find({s[cur.id].r, cur.id}) != act.end())
                act.erase({s[cur.id].r, cur.id});
        }
        else
        {
            if (act.size() < cur.x)
            {
                return 0;
            }
            for (int d = 0; d < cur.x; d ++)
                act.erase(act.begin());
        }
    }
    return 1;*/
}

Compilation message (stderr)

teams.cpp:62:31: error: 'll' has not been declared
   62 | int when_better(int j, int k, ll diff)
      |                               ^~
teams.cpp: In function 'int can(int, int*)':
teams.cpp:92:29: warning: conversion from 'std::deque<int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   92 |             int sz = dq.size();
      |                      ~~~~~~~^~
teams.cpp:93:41: error: cannot convert 'std::deque<int>' to 'int'
   93 |             if (when_better(dq[sz - 2], dq))
      |                                         ^~
      |                                         |
      |                                         std::deque<int>
teams.cpp:62:28: note:   initializing argument 2 of 'int when_better(int, int, int)'
   62 | int when_better(int j, int k, ll diff)
      |                        ~~~~^
teams.cpp:94:9: error: expected primary-expression before '}' token
   94 |         }
      |         ^