Cod sursa(job #1872221)

Utilizator valentinoMoldovan Rares valentino Data 7 februarie 2017 23:52:46
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.7 kb
#include <fstream>
#include <iostream>
#include <deque>
#define inf 0x3f3f3f3f
using namespace std;

ifstream f("secventa.in");
ofstream g("secventa.out");

int n, v[500005],k;
deque < int > dq;

int main()
{
    int sol = -inf, st, dr;
    f >> n >> k;
    for(int i = 1; i <= n; ++i) f >> v[i];
    for(int i = 1; i <= n; ++i)
    {
        if(!dq.empty() && dq.front() <= i - k) dq.pop_front();
        while(!dq.empty() && v[i] <= v[dq.back()]) dq.pop_back();
        dq.push_back(i);
        if(v[dq.front()] > sol && i >= k)
        {
            sol = v[dq.front()];
            st = dq.front();
            dr = i;
        }
    }
    g << st << ' ' << dr << ' ' << sol;
}