Cod sursa(job #2145944)

Utilizator RazvanatorHilea Razvan Razvanator Data 27 februarie 2018 18:22:58
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.23 kb
#include <deque>
#include <fstream>

using namespace std;

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

deque < int > deck;

char s[3000000];
int v[500015];
int n,k,cnt;
int min_st,min_dr,st,dr,maxim;

void parse_1()
{
    int i=0;
    while (s[i]>='0' && s[i]<='9') {
        n=n*10+s[i]-'0';
        i++;
    }
    i++;
    while (s[i]>='0' && s[i]<='9') {
        k=k*10+s[i]-'0';
        i++;
    }

}

void parse_2()
{
    int k=0,x;
    bool neg=false;
    for (int i=1;i<=n;i++) {
        x=0;
        if (s[k]=='-') {neg=true;k++;}
        while (s[k]>='0' && s[k]<='9') {
            x=x*10+s[k]-'0';
            k++;
        }
        if (neg) x=-x;
        k++;
        neg=false;

        v[++cnt]=x;
    }
}

int main()
{
    fin.get(s,'\n');
    parse_1();
    fin>>ws;
    fin.get(s,2550000);
    parse_2();
    for (int i = 1; i <= n; i++) {
        if (!deck.empty() && deck.front() == i - k) deck.pop_front();
        while (!deck.empty() && v[i] <= v[deck.back()]) deck.pop_back();
        deck.push_back(i);
        if (i >= k && v[deck.front()] > maxim)
        {
            maxim = v[deck.front()];
            min_st = i - k + 1;
            min_dr = i;
        }
    }
    fout<<min_st<<" "<<min_dr<<" "<<maxim;
}