Cod sursa(job #3254657)

Utilizator ShadowZoidPorojan Victor-Andrei ShadowZoid Data 8 noiembrie 2024 12:41:41
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.78 kb
#include <fstream>
using namespace std;
ifstream cin("algsort.in");
ofstream cout("algsort.out");
int n,v[500005],i,j,x[500005],k;
void mergesort(int v[],int st,int dr)
{
    if(st<dr)
    {
        int mij=(st+dr)/2;
        mergesort(v,st,mij);
        mergesort(v,mij+1,dr);
        int i=st,j=mij+1,k=0;
        while(i<=mij&&j<=dr)
            if(v[i]<v[j])
                x[++k]=v[i++];
            else
                x[++k]=v[j++];
        while(i<=mij)
            x[++k]=v[i++];
        while(j<=dr)
            x[++k]=v[j++];
        for(i=st,j=1; i<=dr; i++,j++)
            v[i]=x[j];
    }
}
int main()
{
    cin>>n;
    for(i=1; i<=n; i++)
        cin>>v[i];
    mergesort(v,1,n);
    for(i=1; i<=n; i++)
        cout<<v[i]<<" ";
    return 0;
}