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Cod sursa(job #883083)
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
#define MAX_N 500000
long n, v[MAX_N];
long position(long i, long j){
short int mod = 1;
while(i<j){
if(v[i] > v[j]){
swap(v[i],v[j]);
mod *=(-1);
}
if(mod == 1) i++;
else j--;
}
return i;
}
void quick(long li, long ls){
if(li < ls){
long lm = position(li, ls);
quick(li,lm-1);
quick(lm, ls);
}
}
int main()
{
fin >> n;
for(long i=1; i<=n; i++){
fin >> v[i];
}
quick(1,n);
for(long i=1; i<=n; i++)
fout << v[i] << " ";
return 0;
}