Cod sursa(job #204955)

Utilizator MciprianMMciprianM MciprianM Data 28 august 2008 14:15:52
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.75 kb
#include<fstream>
using namespace std;
int a[500009];
int main(){
  int n, k, i, vf, ult,x,pi,psf,bmax;
  ifstream f("secventa.in");
  f>>n>>k;
  vf=0;
  ult=-1;
  for(i=0;i<k;i++){
    f>>x;
    if(vf>=ult){vf=ult=0;a[ult]=x;}
    else {while(a[ult]>x && ult>=vf)  ult--;
          if(ult<vf){  ult=vf=0;a[ult]=x;}
          else a[++ult]=x;
    }
  }
  pi=1;psf=k;bmax=a[vf];
  for(i=k+1;i<=n;i++){
    vf++;
    f>>x;
    if(vf>=ult){vf=ult=0;a[ult]=x;}
    else {while(a[ult]>x && ult>=vf)  ult--;
          if(ult<vf){  ult=vf=0;a[ult]=x;}
          else a[++ult]=x;
    }
    if(a[vf]>bmax){bmax=a[vf];psf=i;pi=i-k+1;}
  }
  f.close();
  ofstream g("secventa.out");
  g<<pi<<' '<<psf<<' '<<bmax<<'\n';
  g.close();
  return 0;
}