Cod sursa(job #455521)
/*
* File: main.cpp
* Author: virtualdemon
*
* Created on May 13, 2010, 9:00 PM
*/
#include <vector>
#include <cstdlib>
#include <fstream>
#include <iterator>
#define Nmax 500011
/*
*
*/
using namespace std;
int i, j, k;
int v[Nmax], vv[Nmax];
inline void MegaSort( int left, int right )
{
if( left < right )
{
int middle=left+(right-left)/2;
MegaSort( left, middle );
MegaSort( middle+1, right );
for( k=-1, i=left, j=middle+1; i <= middle && j <= right; )
{
if( v[i] <= v[j] )
vv[++k]=(v[i]), ++i;
else vv[++k]=(v[j]), ++j;
}
for( ; i <= middle; ++i )
vv[++k]=(v[i]);
for( ; j <= right; ++j )
vv[++k]=(v[j]);
for( i=0; i <= k; ++i )
v[i+left]=vv[i];
}
}
int main(int argc, char** argv)
{
int N;
ifstream in( "algsort.in" );
in>>N;
copy( istream_iterator<int>(in), istream_iterator<int>(), v );
ofstream out( "algsort.out" );
MegaSort( 0, N-1 );
copy( v, v+N, ostream_iterator<int>( out, " " ) );
out<<'\n';
return (EXIT_SUCCESS);
}