// C++ program for insertion sort 
#include 
using namespace std;

/* Function to sort an array using insertion sort*/
void insertionSort(int arr[], int n) 
{ 
    int i, key, j; 
    for (i = 1; i < n; i++)
    { 
        key = arr[i]; 
        j = i - 1; 

        /* Move elements of arr[0..i-1], that are 
        greater than key, to one position ahead 
        of their current position */
        while (j >= 0 && arr[j] > key)
        { 
            arr[j + 1] = arr[j]; 
            j = j - 1; 
        } 
        arr[j + 1] = key; 
    } 
} 

// A utility function to print an array of size n 
void printArray(int arr[], int n) 
{ 
    int i; 
    for (i = 0; i < n; i++) 
        cout << arr[i] << " "; 
    cout << endl;
} 

/* Driver code */
int main() 
{ 
    int arr[] = { 12, 11, 13, 5, 6 }; 
    int n = sizeof(arr) / sizeof(arr[0]); 

    insertionSort(arr, n); 
    printArray(arr, n); 

    return 0; 
} 

// This is code is contributed by rathbhupendra