Cod sursa(job #2898289)

Utilizator pasare.franci@yahoo.comPasare Francisca [email protected] Data 6 mai 2022 16:06:36
Problema Sortare prin comparare Scor 60
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.93 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int a[100001],n;
void interclasare(int st, int m, int dr)
{
    int i=st; int j=m+1;
    int aux[100001];
    int k=st;
    while(i<=m&&j<=dr){
        if(a[i]<a[j]){
            aux[k]=a[i];
            i++; k++;
        }
        else{
            aux[k]=a[j];
            j++; k++;
        }
    }
    while(i<=m){
        aux[k]=a[i];
        i++; k++;
    }
    while(j<=dr){
        aux[k]=a[j];
        j++; k++;
    }
    for(i=st; i<=dr; i++)
        a[i]=aux[i];
}
void MergeSort(int st, int dr)
{
    if(st<dr){
        int m=(st+dr)/2;
        MergeSort(st,m);
        MergeSort(m+1,dr);
        interclasare(st,m,dr);
    }
}
int main()
{
   f>>n;
    for(int i=1; i<=n; i++)
        f>>a[i];
    MergeSort(1,n);
    for(int i=1; i<=n; i++)
    g<<a[i]<<" ";
    return 0;
}