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Cod sursa(job #649960)
#include <cstdio>
#define NMax 500005
using namespace std;
long N, X[NMax];
void Merge (long V[], long L, long R)
{
long Aux[NMax], iAux=0;
long Mid=(L+R)/2, i=L, j=Mid+1;
for (; i<=Mid and j<=R; )
{
if (V[i]<V[j])
{
Aux[++iAux]=V[i++];
}
else
{
Aux[++iAux]=V[j++];
}
}
for (; i<=Mid; ++i)
{
Aux[++iAux]=V[i];
}
for (; j<=R; ++j)
{
Aux[++iAux]=V[j];
}
for (i=L; i<=R; ++i)
{
V[i]=Aux[i-L+1];
}
}
void Mergesort (long V[], long L, long R, long Depth)
{
if (L==R)
{
return;
}
long Mid=(L+R)/2;
Mergesort (V, L, Mid, Depth+1);
Mergesort (V, Mid+1, R, Depth+1);
Merge (V, L, R);
}
void Read ()
{
freopen ("algsort.in", "r", stdin);
scanf ("%ld", &N);
for (long i=1; i<=N; ++i)
{
scanf ("%ld", &X[i]);
}
}
void Print ()
{
freopen ("algsort.out", "w", stdout);
for (long i=1; i<=N; ++i)
{
printf ("%d ", X[i]);
}
}
int main()
{
Read ();
Mergesort (X, 1, N, 1);
Print ();
return 0;
}