Mai intai trebuie sa te autentifici.
Cod sursa(job #1727913)
| Utilizator | Data | 11 iulie 2016 21:14:03 | |
|---|---|---|---|
| Problema | Sortare prin comparare | Scor | 80 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 1.01 kb |
#include <iostream>
#include <vector>
#include <algorithm>
#include <fstream>
#include <cstdlib>
#include <ctime>
using namespace std ;
ifstream f ("algsort.in") ;
ofstream g ("algsort.out") ;
int n , v[500005];
void QuickSort(int st, int dr)
{
if(st < dr)
{
//determinam pivorul
int m = st + rand () % ( dr - st + 1 ) ;
int aux = v[st];
v[st] = v[m];
v[m] = aux;
int i = st , j = dr, d = 0;
while(i < j)
{
if(v[i] > v[j])
{
aux = v[i];
v[i] = v[j];
v[j] = aux;
d = 1 - d;
}
i += d;
j -= 1 - d;
}
QuickSort(st , i - 1);
QuickSort(i + 1 , dr);
}
}
int main()
{
srand (time(NULL)) ;
f >> n ;
for(int i = 0 ; i < n ; i ++)
f >> v[i];
QuickSort(0 , n - 1);
for(int i = 0 ; i < n ; i ++)
g << v[i] << " ";
return 0;
}
