Pagini recente » Cod sursa (job #2961484) | Cod sursa (job #1173467) | Cod sursa (job #1274713) | Cod sursa (job #1450645) | Cod sursa (job #1152022)
#include <fstream>
using namespace std;
ifstream in("algsort.in");
ofstream out("algsort.out");
int v[500001], n, aux[500001];
void ms(int st, int dr);
void merge(int st, int dr);
int main()
{
in >> n;
for(int i=1;i<=n;i++)
in >> v[i];
ms(1,n);
for(int i=1;i<=n;i++)
out << v[i] << " ";
in.close();
out.close();
return 0;
}
void ms(int st, int dr)
{
if(st==dr)
return;
int m=(st+dr)/2;
ms(st,m);
ms(m+1,dr);
merge(st,dr);
}
void merge(int st, int dr)
{
int m=(st+dr)/2, i=st, k=st, j=m+1;
while(i<=m && j<=dr)
{
if(v[i]<=v[j])
aux[k++]=v[i++];
else
aux[k++]=v[j++];
}
while(i<=m)
aux[k++]=v[i++];
while(j<=dr)
aux[k++]=v[j++];
for(k=st;k<=dr;k++)
v[k]=aux[k];
}