Cod sursa(job #2627536)

Utilizator Edyci123Bicu Codrut Eduard Edyci123 Data 11 iunie 2020 11:36:01
Problema Secventa Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.15 kb
#include <fstream>
#include <cstring>
#include <deque>

using namespace std;

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

deque <int> dq;

int v[500005],i,nr=1,j,k,semn=1,m,n,maxi;
char s[4000005];

int main()
{

    f>>n>>k;

    f.get();
    f.getline(s,4000000);

    m=strlen(s);
    for(i=0;i<m;i++)
    {
        if(s[i]=='-')
            semn=-1;
        else
            {
                while(isdigit(s[i])&&i<m)
                    v[nr]=v[nr]*10+s[i]-'0',i++;
                v[nr]*=semn;
                nr++;
                semn=1;
            }
    }

    for(i=1;i<=k;i++)
    {
        while(!dq.empty()&&v[dq.back()]>=v[i])
            dq.pop_back();
        dq.push_back(i);
    }
    int baza=1;
    maxi=v[dq.front()];

    for(i=k+1;i<=n;i++)
    {
        while(!dq.empty()&&v[dq.back()]>=v[i])
            dq.pop_back();
        dq.push_back(i);
        if(dq.front()<=i-k)
            dq.pop_front();
        if(v[dq.front()]>maxi)
        {
            baza=i-k+1;
            maxi=v[dq.front()];
        }
    }

    g<<baza<<" "<<baza+k-1<<" "<<maxi;

    return 0;

}