Cod sursa(job #1265346)

Utilizator cldmeClaudiu Ion cldme Data 17 noiembrie 2014 09:57:09
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.77 kb
#include <stdio.h>
int const N=500001;
int v[N],n;

int aux[N];
void myMerge(int st,int dr,int v[N])
{
    int i,j,k,m=(st+dr)/2;
    i=k=st;
    j=m+1;
    while(i<=n && j<=dr)
        if(v[i] <= v[j])
            aux[k++] = v[i++];
        else
            aux[k++] = v[j++];
    while(i<=n) aux[k++] = v[i++];
    while(j<=dr) aux[k++] = v[j++];
    for(i=st;i<=dr;i++)
        v[i] = aux[i];

}

void ms(int st,int dr,int v[N])
{
    if(st == dr) return;
    int m = (st+dr)/2;
    ms(st,m,v);
    ms(m+1,dr,v);
    myMerge(st,dr,v);
}

int main()
{
    int i;
    freopen("algsort.in","r",stdin);
    freopen("algsort.out","w",stdout);
    scanf("%d",&n);
    for(i=1;i<=n;i++)
        scanf("%d",&v[i]);
    ms(1,n,v);
    for(i=1;i<=n;i++)
        printf("%d ",v[i]);
    return 0;
}