Pagini recente » Cod sursa (job #441278) | Cod sursa (job #612786) | Cod sursa (job #2180561) | Cod sursa (job #1392625) | Cod sursa (job #2404694)
#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int a[500001], b[500001];
void Interclasare(int st,int mij,int dr)
{
int k, i, j;
i = st;
j = mij + 1;
k = st - 1;
while(i <= mij && j <= dr)
{
if(a[i] < a[j]) b[++k] = a[i++];
else b[++k] = a[j++];
}
while(i <= mij)
b[++k] = a[i++];
while(j <= dr)
b[++k] = a[j++];
for(i = st; i <= dr; i++)
a[i] = b[i];
}
void Mergesort(int st,int dr)
{
if(st<dr)
{
int mij=(st+dr)/2;
Mergesort(st,mij);
Mergesort(mij+1,dr);
Interclasare(st,mij,dr);
}
}
int main()
{
int n,i;
fin>>n;
for(i=1;i<=n;i++)
fin>>a[i];
Mergesort(1,n);
for(i = 1; i<= n; i++)
fout << a[i] << " ";
return 0;
}