Cod sursa(job #1049306)

Utilizator alexandrabadutBadut Alexandra alexandrabadut Data 7 decembrie 2013 10:19:48
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.83 kb
#include<fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int v[500001],x,n,c[500001];
void inter(int a,int m,int b){
    int i=a,j=m+1,k=a-1;

    while(i<=m&&j<=b){
        if(v[i]<v[j]){
            c[++k]=v[i++];
        }
        else{
            c[++k]=v[j++];
        }
    }

    for(;i<=m;i++){
        c[++k]=v[i];
    }
    for(;j<=b;j++){
        c[++k]=v[j];
    }
    for(i=a;i<=b;i++){
        v[i]=c[i];
    }

}
void sorteaza(int a,int b){
    if(a==b){
        return;
    }
    else{
        int m=(a+b)/2;
        sorteaza(a,m);
        sorteaza(m+1,b);
        inter(a,m,b);
    }
}
int main(){
    fin>>n;
    for(x=1;x<=n;x++){
        fin>>v[x];
    }
    sorteaza(1,n);
    for(x=1;x<=n;x++){
        fout<<v[x]<<" ";
    }
    return 0;
}