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Python Articles
Page 52 of 855
Python Program to Find the Second Largest Number in a List Using Bubble Sort
When it is required to find the second largest number in a list using bubble sort, a method named ‘bubble_sort’ is defined, that sorts the elements of the list. Once this is done, another method named ‘get_second_largest’ is defined that returns the second element from the end as output.Below is the demonstration of the same −Examplemy_list = [] my_input = int(input("Enter the number of elements...")) for i in range(1, my_input+1): b=int(input("Enter the element...")) my_list.append(b) for i in range(0, len(my_list)): for j in range(0, len(my_list)-i-1): if(my_list[j]>my_list[j+1]): temp=my_list[j] ...
Read MorePython Program to Create a List of Tuples with the First Element as the Number and Second Element as the Square of the Number
When it is required to create a list of tuple, and have the first element as the number, and the second element as the square of the element, list comprehension can be used.Below is the demonstration of the same −Examplemy_list = [23, 42, 67, 89, 11, 32] print(“The list is “) print(my_list) print(“The resultant tuple is :”) my_result = [(val, pow(val, 2)) for val in my_list] print(my_result)OutputThe list is [23, 42, 67, 89, 11, 32] The resultant tuple is : [(23, 529), (42, 1764), (67, 4489), (89, 7921), (11, 121), (32, 1024)]ExplanationA list is defined, and is displayed on the ...
Read MorePython Program to Find all Numbers in a Range which are Perfect Squares and Sum of all Digits in the Number is Less than 10
When it is required to find all numbers in a range where there are perfect square, and sum of digits in the number is less than 10, list comprehension is used.Below is the demonstration of the same −Examplelower_limit = int(input(“Enter the lower range: “)) upper_limit = int(input(“Enter the upper range: “)) my_list = [] my_list = [x for x in range(lower_limit,upper_limit+1) if (int(x**0.5))**2==x and sum(list(map(int,str(x))))
Read MorePython Program to Find the Cumulative Sum of a List where the ith Element is the Sum of the First i+1 Elements From The Original List
When it is required to find the sum of a list where the specific element is sum of first few elements, a method is defined, that takes list as parameter. It uses list comprehension to find the cumulative sum.Below is the demonstration of the same −Exampledef cumulative_sum(my_list): cumulative_list = [] my_length = len(my_list) cumulative_list = [sum(my_list[0:x:1]) for x in range(0, my_length+1)] return cumulative_list[1:] my_list = [10, 20, 25, 30, 40, 50] print("The list is :") print(my_list) print("The cumulative sum is :") print (cumulative_sum(my_list))OutputThe list is : [10, 20, 25, 30, 40, 50] The cumulative sum ...
Read MoreSort a List of Tuples in Increasing Order by the Last Element in Each Tuple using Python program
When it is required to sort a list of tuples in increasing order based on last element of every tuple, a method is defined, that iterates over the tuple and performs a simple swap to achieve the same.Below is the demonstration of the same −Exampledef sort_tuple(my_tup): my_len = len(my_tup) for i in range(0, my_len): for j in range(0, my_len-i-1): if (my_tup[j][-1] > my_tup[j + 1][-1]): temp = my_tup[j] my_tup[j]= my_tup[j + 1] ...
Read MoreProgram to delete n nodes after m nodes from a linked list in Python
Suppose we are given a linked list that has the start node as "head", and two integer numbers m and n. We have to traverse the list and delete some nodes such as the first m nodes are kept in the list and the next n nodes after the first m nodes are deleted. We perform this until we encounter the end of the linked list. We start from the head node, and the modified linked list is to be returned.The linked list structure is given to us as −Node value : next : So, if the ...
Read MoreProgram to find Final Prices With a Special Discount in a Shop in Python
Suppose we have an array called prices where prices[i] represents price of the ith item in a shop. There is a special offer going on, if we buy the ith item, then we will get a discount equivalent to prices[j] where j is the minimum index such that j > i and price of jth item is less or same as price of ith item (i.e. prices[j] = prices[j], thenprices[i] := prices[i] - prices[j]come out from the loopotherwise, j := j + 1return pricesExample (Python)Let us see the following implementation to get better understanding −def solve(prices): for i in ...
Read MoreProgram to find running sum of 1d array in Python
Suppose we have an array nums. The running sum of an array as rs[i] is sum of all elements from nums[0] to nums[i]. Finally return the entire running sum of nums.So, if the input is like nums = [8, 3, 6, 2, 1, 4, 5], then the output will be [8, 11, 17, 19, 20, 24, 29], becausers[0] = nums[0] rs[1] = sum of nums[0..1] = 8 + 3 = 11 rs[2] = sum of nums[0..2] = 8 + 3 + 6 = 17 and so onTo solve this, we will follow these steps −n:= size of numsrs:= [nums[0]]for i ...
Read MoreProgram to perform XOR operation in an array using Python
Suppose we have an integer n and another integer start. We have to create an array called nums where nums[i] = start + 2*i (i start from 0) and n is the size of nums. Then find the bitwise XOR of all elements of nums.So, if the input is like n = 6, start = 2, then the output will be 14 because the array will be like [2+2*0, 2+2*1, ... 2+2*5] = [2, 4, 6, 8, 10, 12], then XOR of each element present in the array is 14.To solve this, we will follow these steps −count := startwhile ...
Read MoreProgram to find average salary excluding the minimum and maximum salary in Python
Suppoe we have an array with distinct elements called salary where salary[i] is the salary of ith employee. We have to find the average salary of employees excluding the minimum and maximum salary.So, if the input is like salary = [8000, 6000, 2000, 8500, 2500, 4000], then the output will be 5125.0, as the minimum and maximum salary values are 2000 and 8500, so excluding them the average salary values are [8000, 6000, 2500, 4000] so the average is (8000 + 6000 + 2500 + 4000)/4 = 5125.To solve this, we will follow these steps −delete minimum of salary from ...
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