Cod sursa(job #1802394)

Utilizator stelian2000Stelian Chichirim stelian2000 Data 10 noiembrie 2016 11:27:30
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.6 kb
#include <cstdio>
#include <algorithm>

using namespace std;

int v[500010],v1[500010];

void merge_sort(int st,int dr)
{
    if(st>=dr) return;
    int mid=(st+dr)/2;
    merge_sort(st,mid);
    merge_sort(mid+1,dr);
    merge(v+st,v+mid+1,v+mid+1,v+dr+1,v1);
    for(int i=st;i<=dr;i++)
        v[i]=v1[i-st];
}

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