Mai intai trebuie sa te autentifici.
Cod sursa(job #1312733)
| Utilizator | Data | 9 ianuarie 2015 21:27:20 | |
|---|---|---|---|
| Problema | Sortare prin comparare | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.75 kb |
#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<time.h>
using namespace std;
int a[500000],n,k;
void quick(int st, int dr)
{
if(st>=dr) return;
int i=st,j=dr,p,m
p=a[st+rand()%(dr-st+1)];
while(i<=j)
{
while(i<=dr&&a[i]<p) i++;
while(j>=st&&a[j]>p) j--;
if(i<=j)
{if(a[i]!=a[j]) a[i]=a[i]+a[j]-(a[j]=a[i]);
i++; j--;}
}
if(st<j) quick(st,j);
if(i<dr) quick(i,dr);
}
int main()
{
ifstream f("algsort.in");
ofstream g("algsort.out");
int i;
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
srand(time(NULL));
quick(1,n);
for(i=1;i<=n;i++)
g<<a[i]<<" ";
f.close();
f.close();
return 0;
}
