Example 1: program for insertion sort
# another method similar to insertion sort
def insertionSort(arr):
for i in range(1, len(arr)):
k = i
for j in range(i-1, -1, -1):
if arr[k] < arr[j]: # if the key element is smaller than elements before it
temp = arr[k] # swapping the two numbers
arr[k] = arr[j]
arr[j] = temp
k = j # assigning the current index of key value to k
arr = [5, 2, 9, 1, 10, 19, 12, 11, 18, 13, 23, 20, 27, 28, 24, -2]
print("original array \n", arr)
insertionSort(arr)
print("\nSorted array \n", arr)
Example 2: insertion sort
#include <bits/stdc++.h>
using namespace std;
void insertionSort(int arr[], int n)
{
int i, temp, j;
for (i = 1; i < n; i++)
{
temp = arr[i];
j = i - 1;
while (j >= 0 && arr[j] > temp)
{
arr[j + 1] = arr[j];
j = j - 1;
}
arr[j + 1] = temp;
}
}
int main()
{
int arr[] = { 1,4,2,5,333,3,5,7777,4,4,3,22,1,4,3,666,4,6,8,999,4,3,5,32 };
int n = sizeof(arr) / sizeof(arr[0]);
insertionSort(arr, n);
for(int i = 0; i < n; i++){
cout << arr[i] << " ";
}
return 0;
}