Cod sursa(job #1310222)

Utilizator scipianusFMI Ciprian Olariu scipianus Data 6 ianuarie 2015 16:37:59
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.82 kb
#include <fstream>
using namespace std;
int n, v[500100], newv[500100];

inline void Merge(int st, int dr)
{
	if(st >= dr)
		return;
	int mij = (st + dr) / 2;
	Merge(st, mij);
	Merge(mij + 1, dr);
	int i, j, k;
	i = st;
	j = mij + 1;
	k = st;
	while(i <= mij && j <= dr)
	{
		if(v[i] < v[j])
		{
			newv[k++] = v[i];
			i++;
		}
		else
		{
			newv[k++] = v[j];
			j++;
		}
	}
	while(i <= mij)
	{
		newv[k++] = v[i];
		i++;
	}
	while(j <= dr)
	{
		newv[k++] = v[j];
		j++;
	}
	for(i = st; i <= dr; ++i)
		v[i] = newv[i];
}

int main()
{
	int i;
	ifstream fin("algsort.in");
	fin >> n;
	for(i = 1; i <= n; ++i)
		fin >> v[i];
	fin.close();
	
	Merge(1, n);
	
	ofstream fout("algsort.out");
	for(i = 1; i <= n; ++i)
		fout << v[i] << ' ';
	fout << endl;
	fout.close();
	return 0;
}