Cod sursa(job #3209000)

Utilizator Theo14Ancuta Theodor Theo14 Data 1 martie 2024 17:49:04
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.78 kb
#include<bits/stdc++.h>
using namespace std;
ifstream f("algsort.in");
ofstream g1("algsort.out");

int n,v[500005],g[500005];

void merge_sort(int s[], int st, int dr)
{
    if(st>=dr)
        return;
    int mij=(st+dr)/2;
    merge_sort(s,st,mij);
    merge_sort(s,mij+1,dr);
    int i=st;
    int j=mij+1;
    int k=0;
    while(i<=mij && j<=dr)
    {
        if(v[i]<v[j])
            g[++k]=v[i],i++;
        else
            g[++k]=v[j],j++;
    }
    while(i<=mij)
        g[++k]=v[i],i++;
    while(j<=dr)
        g[++k]=v[j],j++;
    for(i=st,j=1;i<=dr;i++,j++)
        s[i]=g[j];
}

int main()
{
    int i;
    f>>n;
    for(i=1;i<=n;i++)
        f>>v[i];
    merge_sort(v,1,n);
    for(i=1;i<=n;i++)
        g1<<v[i]<<" ";
    return 0;
}