Mai intai trebuie sa te autentifici.
Cod sursa(job #2586239)
Utilizator | Data | 20 martie 2020 02:45:39 | |
---|---|---|---|
Problema | Sortare prin comparare | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 1.12 kb |
#include <fstream>
using namespace std;
ifstream f ("algsort.in");
ofstream g ("algsort.out");
int n;
int v[500005];
int aux[500005];
void Read ()
{
f >> n;
for (int i=1; i<=n; i++)
f >> v[i];
}
void MergeSort (int st, int dr)
{
if (st < dr)
{
int mij = (st + dr) / 2;
MergeSort(st, mij);
MergeSort(mij+1, dr);
int i, j, k;
i = st, j = mij + 1, k = 0;
while (i <= mij && j <= dr)
{
if (v[i] < v[j])
{
k ++, aux[k] = v[i];
i ++;
}
else {
k ++, aux[k] = v[j];
j ++;
}
}
while (i <= mij)
{
k ++, aux[k] = v[i];
i ++;
}
while (j <= dr)
{
k ++, aux[k] = v[j];
j ++;
}
for (int i=st, j=1; i<=dr && j <= k; i++, j++)
v[i] = aux[j];
}
}
void Print ()
{
for (int i=1; i<=n; i++)
g << v[i] << " ";
}
int main()
{
Read();
MergeSort(1, n);
Print();
return 0;
}