Cod sursa(job #1389648)

Utilizator BlackLordFMI Alex Oprea BlackLord Data 16 martie 2015 15:01:51
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.92 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
int n, k, i, a[500010], mini[500010], x=1, y=0, minim=-30001, poz, l, ok, j;
char s[3000010];
int main(){
    f>>n>>k;
    f.get();
    f.get(s, 3000010);
    for(i=1, j=0; i<=n; i++, j++)
    {
        if(s[j]=='-')
            ok=-1, j++;
        else
            ok=1;
        x=0;
        while(s[j]>='0' && s[j]<='9')
            x=x*10+(s[j++]-'0');
        a[i]=x*ok;
    }
    x=1;
    for(i=1; i<=n; i++)
    {
        while(x<=y && a[i]<=a[mini[y]])
            y--;
        mini[++y]=i;
        if(i>=k)
        if(minim<a[mini[x]])
        {
            minim=a[mini[x]];
            poz=mini[x];
        }
        if(mini[x]==i-k+1)
            x++;
    }
    l=poz;
    while(a[l-1]>=minim && l>1)
        l--;
    g<<l<<' '<<max(l+k-1,poz)<<' '<<minim;
    return 0;
}