Cod sursa(job #1745602)

Utilizator antracodRadu Teodor antracod Data 22 august 2016 12:19:11
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.29 kb
#include <iostream>
#include <fstream>
#include <deque>

using namespace std;

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

const int NMAX=500005;

#define f first
#define s second

char s[3000100];
int v[NMAX],p;
deque<int> DQ;

void read(int &x) {
    x=0;
    bool sign=false;
    if(s[p]=='-')
        sign=true,p++;
    while(s[p]>='0'&&s[p]<='9')
        x=x*10+(s[p]-'0'),p++;
    p++;
    if(sign)
        x*=-1;
}


int main()
{
    int n,x;
    int nr=-999999;
    int poz;
    register int i;
    register int k;
    in.getline(s,3000100);
    read(n);
    read(k);
    in.getline(s,3000100);
    p=0;
    int m;
    for(i=1; i<k; i++)
    {

        read(m);
        v[i]=m;
        while(DQ.empty()!=1 && v[DQ.back()]>v[i])
        {
            DQ.pop_back();
        }
        DQ.push_back(i);
    }
    for(i=k; i<=n; i++)
    {
        read(m);
        v[i]=m;
        while(DQ.empty()!=1 && v[DQ.back()]>v[i])
        {
            DQ.pop_back();
        }
        DQ.push_back(i);

        if(DQ.front()<=i-k)
        {
            DQ.pop_front();
        }

        if(v[DQ.front()]>nr)
        {
            nr=v[DQ.front()];
            poz=i;
        }
    }

    out<<poz-k+1<<" "<<poz<<" "<<nr;

}