Cod sursa(job #1201607)

Utilizator diana97Diana Ghinea diana97 Data 25 iunie 2014 15:24:36
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.19 kb
#include <iostream>
#include <fstream>
#include <deque>
#include <cstring>

using namespace std;

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

int n, k;
int v[500001];
char s[3500001];
deque <int> d;

int nr (int &i) {
    int x = 0;
    while (isdigit(s[i])) {
        x = x * 10 + s[i] - '0';
        i++;
    }
    i--;
    return x;
}

void citeste () {
    f >> n >> k;
    int semn = 1, x, p = 0;
    char a; f >> a;
    f.get(s, 3500000);
    int l = strlen(s) - 1;
   // cout << l;
    for (int i = 0; i < l; i++) {
        if (s[i] == ' ') i++;
        if (s[i] == '-') semn = -1, i++;
        p++;
        v[p] = semn * nr (i);
       // cout << v[p] << ' ';
        semn = 1;
    }
}

void rezolva () {
    int sol = -1, poz;
    for (int i = 1; i <= n; i++) {
        while (!d.empty () && v[d.back()] > v[i]) d.pop_back();
        d.push_back(i);
        if (i - d.front() == k) d.pop_front();
        if (i >= k && v[d.front()] > sol) {
            poz = i;
            sol = v[d.front()];
        }
    }
    g << poz - k + 1 << ' ' << poz << ' ' << sol << '\n';
}

int main () {
    citeste ();
    rezolva ();
    return 0;
}