insertion sort python code example

Example 1: insertion sort in python

def insertion(s):
    for i in range(0,len(s)-1):
        if s[i]>s[i+1]:
            s[i],s[i+1]=s[i+1],s[i]
            for j in range(i,0,-1):
                if s[j]<s[j-1]:
                    s[j],s[j-1]=s[j-1],s[j]
    print(s)
    
insertion([5,2,1,9,0,4,6])

Example 2: insertion sort python

def insertionSort(alist):

   for i in range(1,len(alist)):

       #element to be compared
       current = alist[i]

       #comparing the current element with the sorted portion and swapping
       while i>0 and alist[i-1]>current:
           alist[i] = alist[i-1]
           i = i-1
          alist[i] = current

       #print(alist)

   return alist

print(insertionSort([5,2,1,9,0,4,6]))

Example 3: insertion sort python

def insertion_sort(lst):
    for i in range(1,len(lst)):
        while i > 0 and lst[i - 1] >lst[i] :
            lst[i - 1], lst[i] = lst[i] , lst[i - 1]
            ## swapping
            i = i -1
    return lst
print(insertion_sort([4,2,2,3,4,3,1,1,1,2]))

Example 4: insertion sort in python

def tri_insert(tab): 
for i in range(1, len(tab)): 
        k = tab[i] 
        j = i-1
        while j >= 0 and k < tab[j] : 
                tab[j + 1] = tab[j] 
                j -= 1
        tab[j + 1] = k


    return tab

Example 5: insertion sort

// Por ter uma complexidade alta,
// não é recomendado para um conjunto de dados muito grande.
// Complexidade: O(n²) / O(n**2) / O(n^2)
// @see https://www.youtube.com/watch?v=TZRWRjq2CAg
// @see https://www.cs.usfca.edu/~galles/visualization/ComparisonSort.html

function insertionSort(vetor) {
    let current;
    for (let i = 1; i < vetor.length; i += 1) {
        let j = i - 1;
        current = vetor[i];
        while (j >= 0 && current < vetor[j]) {
            vetor[j + 1] = vetor[j];
            j--;
        }
        vetor[j + 1] = current;
    }
    return vetor;
}

insertionSort([1, 2, 5, 8, 3, 4])