Cod sursa(job #2681562)

Utilizator NeacsuMihaiNeacsu Mihai NeacsuMihai Data 5 decembrie 2020 19:48:31
Problema Secventa Scor 90
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.8 kb
#include <iostream>
#include <fstream>
#include <deque>
using namespace std;

ifstream fin ("secventa.in");
ofstream fout ("secventa.out");
deque<int>q;
int v[500001];
int main()
{
    int n, k, mx=-1, i, p1, p2, b=-1, start;
    fin>>n>>k;
    for(i=1; i<=n; i++)
        fin>>v[i];
    for(i=1; i<=k; i++)
    {
        while(!q.empty() && v[q.back()]>=v[i])
            q.pop_back();
        q.push_back(i);
    }
    b=v[q.front()];
    start=1;
    for(i=k+1; i<=n; i++)
    {
        if(q.front()==i-k)
            q.pop_front();
        while(!q.empty() && v[q.back()]>=v[i])
            q.pop_back();
        q.push_back(i);
        if(b<v[q.front()])
        {
            b=v[q.front()];
            start=i-k+1;
        }
    }
    fout<<start<<' '<<start+k-1<<' '<<b;
}