Sortari cpp

#include <iostream>

using namespace std;

int main()
{
    char c;
    cout << "Introdu metoda de sortare:";
    cin >> c;
    int n;
    cout << "Introdu nr de elemente:"; cin >> n;
    int v[100];
    for (int i = 0; i < n; i++)
        cin >> v[i];
    switch (c)
    {
        case'b'://buble sort
        {
            int i = 0;
            int ok = 0;
            do
            {
                ok = 0;
                for (int j = 0; j < n - i - 1; j++)
                {
                    if (v[j] >= v[j + 1])
                    {
                        swap(v[j], v[j + 1]);
                        ok = 1;
                    }
                }
                ++i;
            } while (ok);
            break;
        }
        case'i'://insertion sort
        {
            for (int i = 0; i < n; i++)
            {
                int x = v[i];
                int j = i - 1;
                while (j >= 0 && v[j] > x)
                {
                    v[j + 1] = v[j];
                    j--;
                }
                v[j + 1] = x;
            }
            break;
        }

        case 's'://selection sort
        {
            for (int i = 0; i < n - 1; i++)
            {
                for (int j = i + 1; j < n; j++)
                {
                    if (v[j] <= v[i])
                    {
                        swap (v[i], v[j]);
                    }
                }

            }
            break;
        }
        case'n':
        {
            int b[100], c[100];
            for (int i = 0; i < n; i++)
            {
                b[i] = 0;
            }
            for (int i = 0; i < n-1; i++)
            {
                int cnt = 0;
                for (int j = i + 1; j < n; j++)
                {
                    if (v[i] > v[j])
                        b[i]++;
                    else
                        b[j]++;
                }

            }
            for (int i = 0; i < n; ++i)
            {
                c[b[i]] = v[i];
            }
            for (int i = 0; i < n; ++i)
                cout << c[i]<<" ";
            cout << endl;
            break;
        }

    }

    for (int i = 0; i < n; i++)
        cout << v[i] << " ";

    system("pause");
    return 0;
}