Cod sursa(job #2482578)

Utilizator vlad082002Ciocoiu Vlad vlad082002 Data 28 octombrie 2019 16:19:53
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.35 kb
#include <fstream>
using namespace std;

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

int v[500010], n;

/*int pivot(int st, int dr) {
    int i = st, j = dr, di = 1, dj = 0;
    while(i < j) {
        if(v[i] > v[j]) {
            int aux = v[i];
            v[i] = v[j];
            v[j] = aux;
            di = 1-di;
            dj = 1-dj;
        }
        i += di;
        j -= dj;
    }
    return i;
}*/

int pivot(int st, int dr) {
    int pivot = v[dr];
    int i = st-1;
    for(int j = st; j < dr; j++)
        if(v[j] < pivot) {
            i++;
            int aux = v[i];
            v[i] = v[j];
            v[j] = aux;
        }
    int aux = v[i+1];
    v[i+1] = v[dr];
    v[dr] = aux;
    return i+1;
}

void quicksort(int st, int dr) {
    if(st < dr) {
        int p = pivot(st, dr);
        quicksort(st, p-1);
        quicksort(p+1, dr);
    }
}

void insertionsort() {
    for(int i = 1; i < n; i++) {
        int p = i;
        while(p > 0 && v[p-1] > v[p]) {
            int aux = v[p];
            v[p] = v[p-1];
            v[p-1] = aux;
            p--;
        }
    }
}


int main() {
    fin >> n;
    for(int i = 0; i < n; i++)
        fin >> v[i];

    insertionsort();
    //quicksort(0, n-1);

    for(int i = 0; i < n; i++)
        fout << v[i] << ' ';
}