Cod sursa(job #1533917)

Utilizator DysKodeTurturica Razvan DysKode Data 23 noiembrie 2015 08:28:40
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.38 kb
#include <fstream>
#include <deque>
#include <iostream>
#include <sstream>
using namespace std;

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

deque<int> deq;
int i,j,n,m,ans,x,y,v[500010],d,k,o;
stringstream ss;
string s;

int main()
{
    fin>>n>>d;
    ans = -31000;
    fin.get();
    getline(fin,s);
    o = 1;

    for( i = 1 ; i <= n ; i++ )
    {
        if( s[ k ] == ' ' )
        {
            k++;
            o = 1;
        }
        if( s[ k ] == '-' )
        {
            o = -1;
            k++;
        }
        while( s[ k ] != ' ' && k < s.length() )
        {
            v[ i ] = v[ i ] * 10 + s[ k ] - '0';
            k++;
        }
        v[ i ] = v[ i ] * o;
    }

    for( i = 1 ; i < d ; i++ )
    {
        while( deq.size() && v[ deq.back() ] >= v[ i ] )
        {
            deq.pop_back();
        }
        deq.push_back( i );
    }

    for( i = d ; i <= n ; i++ )
    {
        while( deq.size() && v[ deq.back() ] >= v[ i ] )
        {
            deq.pop_back();
        }
        deq.push_back( i );
        if( deq.front() < i - d + 1 )
            deq.pop_front();
        m = deq.front();
        if( v[ deq.front() ] > ans )
        {
            ans = v[ deq.front() ];
            x = i - d + 1;
            y = i;
        }
    }
    fout<<x<<' '<<y<<' '<<ans;

return 0;
}