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Cod sursa(job #1533766)

Utilizator DysKodeTurturica Razvan DysKode Data 22 noiembrie 2015 22:08:39
Problema Secventa Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.3 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=1;
stringstream ss;
string s;

int main()
{
    fin>>n>>d;
    ans = -1000000;
    fin.get();
    getline(fin,s);

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

    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;
}