Cod sursa(job #2273151)

Utilizator stefzahZaharia Stefan Tudor stefzah Data 31 octombrie 2018 09:30:04
Problema Sortare prin comparare Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.64 kb
#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int aux,N,a[500005];
void Quicksort(int st, int dr)
    {int mid=(st+dr)/2,i,j;
     i=st;j=dr;
     while(i<=j)
          {while(i<=dr&&a[i]<a[mid])i++;
           while(j>=st&&a[j]>a[mid])j--;
           if(i<=j){aux=a[i];
                    a[i]=a[j];
                    a[j]=aux;i++;j--;
                   }
          }
     if(st<j)
     Quicksort(st,j);
     if(dr>i)
     Quicksort(i,dr);
    }
int main()
{int i;
 fin>>N;
 for(i=1;i<=N;i++)
     fin>>a[i];
 Quicksort(1,N);
 for(i=1;i<=N;i++)
     fout<<a[i]<<" ";
}