Mai intai trebuie sa te autentifici.
Cod sursa(job #3253863)
Utilizator | Data | 5 noiembrie 2024 00:46:21 | |
---|---|---|---|
Problema | Sortare prin comparare | Scor | 80 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.79 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int n,v[500001],aux[500001];
void quicksort(int st, int dr){
if(st>=dr)
return;
int i=st,j=dr;
swap(v[st],v[(st+dr)/2]);
bool pivot=0;
while(i<j){
if(v[i]>v[j]){
swap(v[i],v[j]);
i+=1-pivot;
j-=pivot;
pivot = 1-pivot;
}else{
j-=1-pivot;
i+=pivot;
}
}
quicksort(st, i-1);
quicksort(i+1, dr);
}
int main()
{
srand(time(0));
fin>>n;
for(int i=1;i<=n;i++)
fin>>v[i];
shuffle(v+1,v+n+1, default_random_engine(time(0)));
quicksort(1,n);
for(int i=1;i<=n;i++)
fout<<v[i]<<' ';
return 0;
}