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Cod sursa(job #773003)
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int n, v[500002], i;
int poz(int p, int u){
int j, aux, i0, j0;
i=p;
j=u;
i0=0;
j0=-1;
while(i!=j)
{
if(v[i]>v[j])
{
aux=v[i];
v[i]=v[j];
v[j]=aux;
aux=-i0;
i0=-j0;
j0=aux;
}
i+=i0;
j+=j0;
}
return i;
}
void quicksort(int p, int u){
int k;
if(p<u)
{
k=poz(p, u);
quicksort(p, k-1);
quicksort(k+1, u);
}
}
int main(){
f>>n;
for(i=1; i<=n; i++)
f>>v[i];
quicksort(1, n);
for(i=1; i<=n; i++)
g<<v[i]<<' ';
return 0;
}