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Cod sursa(job #631964)
#include<cstdio>
#define nmax 50000
unsigned int n;
unsigned int a[nmax];
void citire()
{
freopen("algsort.in","r",stdin);
scanf("%u",&n);
for(unsigned int i=0;i<n;i++)
scanf("%u",&a[i]);
fclose(stdin);
}
void afisare()
{
freopen("algsort.out","w",stdout);
for(unsigned int i=0;i<n;i++)
printf("%u ",a[i]);
printf("\n");
fclose(stdout);
}
void interschimba(unsigned int &a,unsigned int &b)
{
unsigned int aux;
aux=a;
a=b;
b=aux;
}
void quick_sort(unsigned int st,unsigned int dr)
{
if(st<dr)
{
unsigned int mijl=(st+dr)/2;
unsigned int i,j;
i=st;j=dr;
while(i<=j)
{
while(a[i]<a[mijl]) i++;
while(a[j]>a[mijl]) j--;
if(i<=j)
interschimba(a[i++],a[j--]);
}
if(st<j)
quick_sort(st,j);
if(dr>i)
quick_sort(i,dr);
}
}
int main()
{
citire();
if(n>=1)
quick_sort(0,n-1);
afisare();
return 0;
}