Cod sursa(job #1872238)

Utilizator valentinoMoldovan Rares valentino Data 8 februarie 2017 00:03:40
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.05 kb
#include <fstream>
#include <iostream>
#include <string.h>
#include <deque>
#define NM 500005
#define inf 0x3f3f3f3f
using namespace std;

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

int n, v[NM],k;
char s[NM * 3];
deque < int > dq;

int main()
{
    int sol = -inf, st, dr, l, sign = 1, nr = 0, m = 0;
    f >> n >> k;
    f.getline(s,0);
    f.getline(s,NM * 3);
    l = strlen(s);
    for(int i = 0; i < l; ++i)
    {
        if(s[i] == ' ') v[++m] = sign * nr, sign = 1, nr = 0;
        else if(s[i] == '-') sign = -1;
        else nr = 10 * nr + (s[i] - '0');
    }
    v[++m] = nr;
    for(int i = 1; i <= n; ++i) cout << v[i] << ' ';
    for(int i = 1; i <= n; ++i)
    {
        if(!dq.empty() && dq.front() <= i - k) dq.pop_front();
        while(!dq.empty() && v[i] <= v[dq.back()]) dq.pop_back();
        dq.push_back(i);
        if(v[dq.front()] > sol && i >= k)
        {
            sol = v[dq.front()];
            st = i - k + 1;
            dr = i;
        }
    }
    g << st << ' ' << dr << ' ' << sol;
}