Cod sursa(job #1345909)

Utilizator VictoriaNevTascau Victoria VictoriaNev Data 17 februarie 2015 22:08:08
Problema Secventa Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.97 kb
#include <iostream>
#include <fstream>
#include <cctype>
#include <cstdlib>
#include <cstring>
#define NMAX 500000
using namespace std;
int n, k, i, j, st, sign, poz, dr, m, maxim, v[NMAX+1], d[NMAX+1];
char s[4000000];
int main()
{
    ifstream cin("secventa.in");
    ofstream cout("secventa.out");
    cin>>n>>k;
    char c[1000];
    cin.getline(c,1000);
    cin.getline(s,4000000);
    int sign, nr;
    i=0;
    while(i<strlen(s))
    {
        sign=1;
        nr=0;
        if (s[i]=='-')
            sign=-1,i++;
        while ('0'<=s[i]&&s[i]<='9')
            nr=nr*10+s[i] -'0',i++;
        m++;
        v[m] = nr * sign;
        i++;
    }

    st=dr=1;
    maxim=1<<20;
    maxim=-maxim;
    for(i=1; i<=n; i++)
    {
        while(st<=dr&&v[d[dr]]>=v[i])
            dr--;
        dr++;
        d[dr]=i;
        if(i-k==d[st])
            st++;
        if(maxim<v[d[st]]&&i>=k)
            maxim=v[d[st]],poz=d[dr];


    }
    cout<<poz-k+1<<' '<<poz<<' '<<maxim;
    return 0;
}