Cod sursa(job #2851586)

Utilizator k2y201342asdfadfsafsd k2y20 Data 18 februarie 2022 20:37:45
Problema Sortare prin comparare Scor 80
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <bits/stdc++.h>
#define ull unsigned long
using namespace std;

ifstream in("algsort.in");
ofstream out("algsort.out");

const int N=5e5+5;
ull v[N],temp[N];

void MergeSort(int st,int dr)
{
    if(st<dr)
    {
        int mid=(st+dr)/2;
        MergeSort(st,mid);
        MergeSort(mid+1,dr);

        int i=st,j=mid+1,k=0;
        while(i<=mid && j<=dr)
            if(v[i]<v[j])
                temp[++k]=v[i++];
            else temp[++k]=v[j++];

        while(i<=mid) temp[++k]=v[i++];
        while(j<=dr) temp[++k]=v[j++];

        for(int l=1,i=st;l<=k;l++,i++)
            v[i]=temp[l];
    }
}
int main()
{
    int n;
    in>>n;

    for(int i=1;i<=n;i++)
        in>>v[i];
    MergeSort(1,n);
    for(int i=1;i<=n;i++)
        out<<v[i]<<' ';
    return 0;
}