Cod sursa(job #672954)

Utilizator Cosmin_NTGIonita Cosmin Cosmin_NTG Data 3 februarie 2012 15:31:09
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.81 kb
#include<fstream>
#define CT 501010
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
void quicksort(int v[CT], int left, int right);
int main()
{
    int N, v[CT], i;
    f>>N;
    for(i=1; i<=N; i++)
    {

        f>>v[i];
    }
    quicksort(v, 1, N);
    for(i=1; i<=N; i++) g<<v[i]<<" ";
    return 0;
}
void quicksort(int v[CT], int left, int right)
{
    int aux, mid, i,j;
    i=left;
    j=right;
    mid=v[(left+right)/2];
    while(i<=j)
    {
        while(v[i]<mid)
        i++;
        while(v[j]>mid)
        j--;
        if(i<=j)
        {
            aux=v[i];
            v[i]=v[j];
            v[j]=aux;
            i++;
            j--;
        }
    }
    if(left<j)
    quicksort(v, left, j);
    if(i<right)
    quicksort(v, i, right);
}