Pagini recente » Cod sursa (job #910436) | Cod sursa (job #246246) | Cod sursa (job #2777936) | Cod sursa (job #948900) | Cod sursa (job #371571)
Cod sursa(job #371571)
#include<fstream>
using namespace std;
long a[500000];
void ex(long i,long j)
{
long aux=a[i];
a[i]=a[j];
a[j]=aux;
}
void qs(long i,long j)
{
long s=i,d=j,piv=a[(i+j)>>1];
while(s<=d)
{
while(a[s]<piv)s++;
while(a[d]>piv)d--;
if(s<=d)
{
ex(s,d);
s++;
d--;
}
}
if(i<d) qs(i,d);
if(s<j) qs(s,j);
}
int main()
{
long i,n;
ifstream f("algsort.in");
ofstream g("algsort.out");
f>>n;
for(i=1;i<=n;i++)f>>a[i];
qs(1,n);
for(i=1;i<=n;i++)g<<a[i]<<' ';
return 0;
}