Cod sursa(job #650726)

Utilizator an_drey_curentandreycurent an_drey_curent Data 18 decembrie 2011 20:36:06
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.33 kb
#include<stdio.h>
#include<vector>
using namespace std;
void interclasare(vector<long int>&v_1,long int st_1,long int dr_1,vector<long int>&v_2,long int st_2,long int dr_2,vector<long int>&v_3,long int st_3,long int dr_3)
{
	vector<long int>auxiliar;
	long int i,save_st_1=st_1,save_dr_1=dr_1,save_st_2=st_2,save_dr_2=dr_2;
	while(st_1<=dr_1&&st_2<=dr_2)
		if(v_1[st_1]<v_2[st_2])
			auxiliar.push_back(v_1[st_1++]);
		else
			if(v_1[st_1]>v_2[st_2])
				auxiliar.push_back(v_2[st_2++]);
			else
				if(v_1[st_1]==v_2[st_2])
				{
					auxiliar.push_back(v_1[st_1++]);
					auxiliar.push_back(v_2[st_2++]);
				}
	while(st_1<=dr_1)
		auxiliar.push_back(v_1[st_1++]);
	while(st_2<=dr_2)
		auxiliar.push_back(v_2[st_2++]);
	for(i=0;i<(save_dr_1-save_st_1+save_dr_2-save_st_2+2);i++)
		v_3[st_3++]=auxiliar[i];
}
void merge_sort(vector<long int>&v,long int st,long int dr)
{
	long int m;
	if(st<dr)
	{
		m=(st+dr)/2;
		merge_sort(v,st,m);
		merge_sort(v,m+1,dr);
		interclasare(v,st,m,v,m+1,dr,v,st,dr);
	}
}
int main()
{
	freopen("algsort.in","r",stdin);
    freopen("algsort.out","w",stdout);
	long int n;
	vector<long int>v;
	long int i,x;
	scanf("%d",&n);
	for(i=1;i<=n;i++)
	{
		scanf("%d",&x);
		v.push_back(x);
	}
	merge_sort(v,0,n-1);
	for(i=0;i<n;i++)
		printf("%d ",v[i]);
	return 0;
}