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Cod sursa(job #608148)
#include <fstream.h>
#include <iostream.h>
#define MAX 500001
ifstream f("algsort.in");
ofstream g("algsort.out");
int v[MAX];
void quick(int i,int j);
int main()
{
int i,n;
f>>n;
for(i=1;i<=n;i++)
f>>v[i];
quick(1,n);
for(i=1;i<=n;i++)
g<<v[i]<<" ";
f.close();
g.close();
return 0;
}
void quick(int i,int j)
{
if(i==j)
return;
int p,aux,start,stop;
start=i;
stop=j;
p=v[(i+j)/2];
while(i<j)
{
while(v[i]<p)
i++;
while(v[j]>p)
j--;
if(i<j)
aux=v[i], v[i]=v[j], v[j]=aux;
}
quick(start,i);
quick(i+1,stop);
}