Cod sursa(job #3004854)

Utilizator RealDream21Fabian-Andrei RealDream21 Data 16 martie 2023 17:30:46
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.33 kb
#include <iostream>
#include <fstream>
using namespace std;

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

int n;
const int NMAX = 1e6;

void shellsort(long long * v, int gap){
    while(gap){
        for(int i = 0; i + gap < n; i++)
            if(v[i] > v[i + gap])
                swap(v[i], v[i + gap]);
        gap /= 2;
    }
}

void merge_function(long long * v, int st, int mij, int dr){
    int i = st;
    int j = mij + 1;
    int aux[dr - st + 1];
    int k = 0;
    while(i <= mij && j <= dr){
        if(v[i] > v[j])
            aux[k++] = v[j++];
        else
            aux[k++] = v[i++];
    }
    while(i <= mij)
        aux[k++] = v[i++];
    while(j <= dr)
        aux[k++] = v[j++];
    k = 0;
    for(int i = st; i <= dr; i++){
        v[i] = aux[k++];
    }
}

void mergeSort(long long *v, int st, int dr){
    if(st < dr){
        int mij = (dr - st)/ 2 + st;
        mergeSort(v, st, mij);
        mergeSort(v, mij + 1, dr);
        merge_function(v, st, mij, dr);
    }
    else return;
}

int main()
{
    fin >> n;
    long long *v;
    v = new long long[n];
    for(int i = 0; i < n; i++)
        fin >> v[i];
    mergeSort(v, 0, n -1);
    for(int i = 0; i < n; i++)
        fout << v[i] << " ";


    fin.close();
    fout.close();
    return 0;
}