Cod sursa(job #2534187)

Utilizator Theo20067Cismaru Theodor-Alexe Theo20067 Data 30 ianuarie 2020 10:29:17
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.79 kb
#include <fstream>
using namespace std;
int n,i,V[500010],W[500010];
void IC(int st, int mid, int dr)
{
    int k=st-1;
    int i=st;
    int j=mid+1;
    while(i<=mid&&j<=dr)
    {
        if (V[i]<V[j])
            W[++k]=V[i++];
        else
            W[++k]=V[j++];
    }
    for(;i<=mid;i++)
        W[++k]=V[i];
    for(;j<=dr;j++)
        W[++k]=V[j];
    for(i=st;i<=dr;i++)
        V[i]=W[i];
}
void caut(int st,int dr)
{
    if(st<dr)
    {
        int mid=(st+dr)/2;
        caut(st,mid);
        caut(mid+1,dr);
        IC(st,mid,dr);
    }
}
int main()
{
    ifstream fin ("algsort.in");
    ofstream fout("algsort.out");
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>V[i];
    caut(1,n);
    for(i=1;i<=n;i++)
        fout<<V[i]<<" ";
    return 0;
}