DAA_cpp/insertion_sort.cpp at main · divesh2022/DAA_cpp · GitHub

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#include <iostream>
#include <string>
using namespace std;

template <typename T>
void insertion_sort(T A[], int size)
{
    for (int i = 1 ; i < size ; ++i)
    {
        T key = A[i];
        int j = i - 1;
        while(j >= 0 && key < A[j])
        {
            A[j+1] = A[j];
            j = j-1;
        }
        A[j+1] = key;
    }
}

template <typename T>
void show(T A[], int size)
{
    for (int i = 0 ; i < size; ++i)
    {
        cout << " A[ " << i << " ] = " << A[i] << endl;
    }
}

int main ()
{
    char ch = 'y';
    while(ch =='y')
    {
        cout << "valid data types are int, float, double, char, string\n";
        string datatype;
        cout << "Enter data type of the array: ";
        cin >> datatype;
        if ( datatype == "int")
        {
        int size;
        cout << "Enter the size of the array: ";
        cin >> size;
        int* A = new int[size];
        for(int i = 0; i < size; i++)
        {
            cout << "Enter the element at index " << i << ": ";
            cin >> A[i];
        }
        cout << "Before sorting:\n";
        show(A, size);
        insertion_sort(A, size);
        cout << "After sorting:\n";
        show(A, size);
        delete[] A;
        }
        else if (datatype == "float")
        {
            int size;
            cout << "Enter the size of the array: ";
            cin >> size;
            float* A = new float[size];
            for(int i = 0; i < size; i++)
            {
                cout << "Enter the element at index " << i << ": ";
                cin >> A[i];
            }
            cout << "Before sorting:\n";
            show(A, size);
            insertion_sort(A, size);
            cout << "After sorting:\n";
            show(A, size);
            delete[] A;
        }
        else if (datatype == "double")
        {
            int size;
            cout << "Enter the size of the array: ";
            cin >> size;
            double* A = new double[size];
            for(int i = 0; i < size; i++)
            {
                cout << "Enter the element at index " << i << ": ";
                cin >> A[i];
            }
            cout << "Before sorting:\n";
            show(A, size);
            insertion_sort(A, size);
            cout << "After sorting:\n";
            show(A, size);
            delete[] A;
        }
        else if (datatype == "char")
        {
            int size;
            cout << "Enter the size of the array: ";
            cin >> size;
            char* A = new char[size];
            for(int i = 0; i < size; i++)
            {
                cout << "Enter the element at index " << i << ": ";
                cin >> A[i];
            }
            cout << "Before sorting:\n";
            show(A, size);
            insertion_sort(A, size);
            cout << "After sorting:\n";
            show(A, size);
            delete[] A;
        }
        else if (datatype == "string")
        {
            int size;
            cout << "Enter the size of the array: ";
            cin >> size;
            string* A = new string[size];
            for(int i = 0; i < size; i++)
            {
                cout << "Enter the element at index " << i << ": ";
                cin >> A[i];
            }
            cout << "Before sorting:\n";
            show(A, size);
            insertion_sort(A, size);
            cout << "After sorting:\n";
            show(A, size);
            delete[] A;
        }
        else
        {
            cout << "Invalid data type\n";
        }
    }
        cout<<"Do you want to continue? (y/n): ";
        cin>>ch;
            if(ch == 'n')
    {
        cout << "Goodbye!\n";
    }

    else if(ch != 'y' || ch != 'n')
    {
        cout << "Invalid input\n";
    }

    return 0;
}