Cod sursa(job #1947940)

Utilizator AndreiTurcasTurcas Andrei AndreiTurcas Data 31 martie 2017 15:31:31
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.07 kb
#include <iostream>
#include <deque>
#include <fstream>
#define MIN -30001
using namespace std;

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

short v[500005];
int N, k, a, b, best = MIN, t = 0;
deque < int > deq;
string s;

int main()
{
    f >> N >> k;
    f.get();
    getline(f, s);
    short semn = 1;
    int x;
    for(int i = 0; i < s.size(); ++i)
    {
        if(s[i] == '-') semn = -1;
        if(isdigit(s[i]))
        {
            x = 0;
            while(isdigit(s[i]))
            {
             x = x * 10 + s[i] - '0';
             ++i;
            }
            x *= semn;
            v[++t] = x;
            x = 0;
            semn = 1;
        }
    }
    for(int i = 1; i <= N; ++i)
    {
        while(!deq.empty() && v[i] <= v[deq.back()])
            deq.pop_back();
        deq.push_back(i);
        if(deq.front() == i - k) deq.pop_front();
        if(i >= k && best < v[deq.front()]) {
            best = v[deq.front()];
            a = i - k + 1; b = i;}
    }
    g << a << " " << b << " " << best;
}