Cod sursa(job #1757744)

Utilizator AlexandruRudiAlexandru Rudi AlexandruRudi Data 15 septembrie 2016 19:04:32
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include <bits/stdc++.h>

using namespace std;

int n; long long a[500005], b[500005];

void Merge(long long a[],int l,int r,long long b[]){
    if(r==l) return;
    int m=(l+r)/2;
    Merge(a,l,m,b);
    Merge(a,m+1,r,b);
    int i=l, j=m+1;
    for(int k=l; k<=r; k++){
        if(i<=m && (j>r || a[i]<=a[j])){
            b[k]=a[i++];
        }
        else{
            b[k]=a[j++];
        }
    }
    for(int i=l;i<=r;i++) a[i]=b[i];
}

int main()
{
    ifstream in("algsort.in");
    ofstream out("algsort.out");
    in >> n;
    for(int i=1;i<=n;i++) in >> a[i];
    Merge(a,1,n,b);
    for(int i=1;i<=n;i++) cout << a[i] << ' ';
}