Cod sursa(job #2266798)

Utilizator pancufPancu Flavian pancuf Data 22 octombrie 2018 21:29:39
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.85 kb
#include <fstream>

using namespace std;
int v[9999999];
int result [999999];
void mergesort (int left, int right){
    if(right==left)
        return ;
    int middle=left+right>>1;
    mergesort(left, middle);
    mergesort(middle+1,right);
    int left1=left;
    int right1=middle+1;
    for(int i=left;i<=right;i++){
        if((right1>right) or (left1<=middle and v[left1]<=v[right1])){
            result[i]=v[left1];
            left1++;
        }
        else{
            result[i]=v[right1];
            right1++;
        }
    }
    for(int i=left;i<=right;i++)
        v[i]=result[i];
}
int main()
{
    ifstream fin ("algsort.in");
    ofstream fout ("algsort.out");
    int n;
    fin>>n;
    for(int i=1;i<=n;i++)
        fin>>v[i];
    mergesort(1,n);
    for(int i=1;i<=n;i++)
        fout<<v[i]<<" ";
    return 0;
}