Pagini recente » Cod sursa (job #2671277) | Cod sursa (job #2018490) | Cod sursa (job #3208814) | Cod sursa (job #2665943) | Cod sursa (job #2269737)
#include <iostream>
#include <fstream>
using namespace std;
#define N 500500
int v[N],n,i,j,curr[N];
ifstream fin("algsort.in");
ofstream fout("algsort.out");
void Merge(int v[],int left, int middle,int right)
{
int it = left,i = left ,j = middle;
while(i < middle && j < right)
{
if(v[i] < v[j])
{
curr[it] = v[i];
++i;
++it;
}
else
{
curr[it] = v[j];
++j;
++it;
}
}
for(;i < middle; ++i)
{
curr[it] = v[i];
++it;
}
for(;j < right; ++j)
{
curr[it] = v[j];
++it;
}
for(it = left; it < right; ++it)
v[it] = curr[it];
}
void MergeSort(int v[], int left, int right)
{
if(left < right - 1)
{
int m = (left + right) / 2;
MergeSort(v,left,m);
MergeSort(v,m,right);
Merge(v,left,m,right);
}
}
int main()
{
fin >> n;
for(i = 0; i < n; ++i)
fin >> v[i];
MergeSort(v,0,n);
for(i = 0; i < n; ++i)
fout << v[i] << ' ';
return 0;
}