Cod sursa(job #1315263)

Utilizator GabyGabyGabriel Tuculina GabyGaby Data 12 ianuarie 2015 17:57:16
Problema Sortare prin comparare Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.98 kb
#include<fstream>
using namespace std;

ifstream fin("algsort.in");
ofstream fout("algsort.out");

int n, i, c, p, v[500050];

void corect(int n){
    for(i=2; i<=n; i++){
        c=i;
        p=i/2;
        while(p!=0)    // sau c!=1
            if(v[c]>v[p]){
                swap(v[c], v[p]);
                c=p;
                p/=2;
            }else
                break;
    }
}

int main(){
    fin>>n;
    for(i=1; i<=n; i++)
        fin>>v[i];
    corect(n);
 /*   for(i=n; i>=2; i--){
        swap(v[1], v[i]);
        corect(i-1);
    }
*/
    for(i=n; i>=2; i--){
        swap(v[1], v[i]);
        p=1;
        c=2;
        while(c<=i-1){
            if((c+1<=i-1) && (v[c+1]>v[c]))
                c++;
            if(v[p]<v[c]){
                swap(v[p], v[c]);
                p=c;
                c*=2;
            }else
                break;
        }
    }

    for(i=1; i<=n; i++)
        fout<<v[i]<<" ";

    return 0;
}