Pagini recente » Cod sursa (job #2804894) | Cod sursa (job #148195) | Cod sursa (job #825423) | Cod sursa (job #1403326) | Cod sursa (job #2736994)
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("algsort.in");
ofstream out("algsort.out");
const int maxn = 500005;
int A[maxn];
int v[maxn];
void mergesort(int st, int dr)
{
if(st == dr)
return;
int mij = (st + dr) / 2;
mergesort(st, mij);
mergesort(mij + 1, dr);
int poz1 = st;
int poz2 = mij + 1;
int p = st;
while(poz1 <= mij && poz2 <= dr)
{
if(v[poz1] <= v[poz2])
{
A[p++] = v[poz1];
poz1++;
}
else
{
A[p++] = v[poz2];
poz2++;
}
}
while(poz1 <= mij)
A[p++] = v[poz1++];
while(poz2 <= dr)
A[p++] = v[poz2++];
for(int i = st; i <= dr; i++)
v[i] = A[i];
}
int main()
{
int n;
in >> n;
for(int i = 1; i <= n; i++)
in >> v[i];
mergesort(1, n);
for(int i = 1; i <= n; i++)
out << v[i] << " ";
return 0;
}