Cod sursa(job #2533646)

Utilizator mihaistamatescuMihai Stamatescu mihaistamatescu Data 29 ianuarie 2020 15:28:34
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.87 kb
#include <fstream>
#define DIM 500010
using namespace std;
int n,i,v[500010],w[500010];
void interclas(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 sorts(int st,int dr){
    if (st<dr){
        int mid=(st+dr)/2;
        sorts(st,mid);
        sorts(mid+1,dr);
        interclas(st,mid,dr);
    }
}
int main() {
    ifstream fin("algsort.in");
    ofstream fout("algsort.out");
    fin>>n;
    for (i=1;i<=n;i++)
        fin>>v[i];
    sorts(1,n);
    for (i=1;i<=n;i++)
        fout<<v[i]<<" ";
    return 0;
}