Cod sursa(job #1883705)
| Utilizator | Data | 18 februarie 2017 10:17:10 | |
|---|---|---|---|
| Problema | Sortare prin comparare | Scor | 40 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.56 kb |
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int n,i,a[500050];
int part( int st , int dr )
{
int i,j,p;
j=st-1; p=a[dr];
for(i=st;i<=dr;i++)
if(a[i]<=p)swap(a[++j],a[i]);
return j;
}
void Qsort ( int st, int dr )
{
int poz;
poz=part(st,dr);
if(st<poz-1) Qsort(st,poz-1);
if(poz+1<dr) Qsort(poz+1,dr);
}
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
Qsort(1,n);
for(i=1;i<=n;i++)
g<<a[i]<<" ";
return 0;
}
