Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
When it is required to clear the rightmost bit of a number which was previously set, the ‘&’ operator can be used.Below is the demonstration of the same −Example Live Demodef clear_right_bit(my_val): return my_val & (my_val-1) n_val = 6 print("The vlaue of n is :") print(n_val) print("The number after unsetting the rightmost set bit is ") print(clear_right_bit(n_val))OutputThe vlaue of n is : 6 The number after unsetting the rightmost set bit is 4ExplanationA method is defined that takes an integer as a parameter.It computes the ‘&’ operation between the number and the number decremented by 1.Outside the method, an integer ... Read More
When it is required to search the frequency of a number in a list, a method is defined, that takes a list and the number. It iterates through the list, and every time the number is encountered, the counter is incremented.Below is the demonstration of the same −Example Live Demodef count_num(my_list, x_val): my_counter = 0 for elem in my_list: if (elem == x_val): my_counter = my_counter + 1 return my_counter my_list = [ 66, 26, 48, 140, 66, 20, 1, 96, 86] print("The list is :") print(my_list) occ_number = 66 ... Read More
When it is required to determine the Pythagorean triplets within a given range, a method is defined, that helps calculate the triplet values.Below is the demonstration of the same −Example Live Demodef pythagorean_triplets(limits) : c, m = 0, 2 while c < limits : for n in range(1, m) : a = m * m - n * n b = 2 * m * n c = m * m + n * n if c > limits : break ... Read More
When it is required to implement Euler’s number, a method is defined, that computes the factorial.Another method is defined that find the sum of these factorial numbers.Below is the demonstration of the same −Example Live Demodef factorial_result(n): result = 1 for i in range(2, n + 1): result *= i return result def sum_result(n): s = 0.0 for i in range(1, n + 1): s += 1.0 / factorial_result(i) print(s) my_value = 5 print("The value is :") print(my_value) print("The result is :") sum_result(my_value)OutputThe value is : ... Read More
When it is required to print the numbers in a given range without using any loop, a method is defined, that keeps displays numbers from higher range by uniformly decrementing it by one after every print statement.Below is the demonstration of the same −Example Live Demodef print_nums(upper_num): if(upper_num>0): print_nums(upper_num-1) print(upper_num) upper_lim = 6 print("The upper limit is :") print(upper_lim) print("The numbers are :") print_nums(upper_lim)OutputThe upper limit is : 6 The numbers are : 1 2 3 4 5 6ExplanationA method named ‘print_nums’ is defined.It checks if the upper limit is greater than 0.If ... Read More
When it is required to convert a nested tuple into a customized key dictionary, the list comprehension can be used.Below is the demonstration of the same −Example Live Demomy_tuple = ((6, 'Will', 13), (2, 'Mark', 15), (9, 'Rob', 12)) print("Thw tuple is : ") print(my_tuple) my_result = [{'key': sub[0], 'value': sub[1], 'id': sub[2]} for sub in my_tuple] print("The converted dictionary is : ") print(my_result)OutputThw tuple is : ((6, 'Will', 13), (2, 'Mark', 15), (9, 'Rob', 12)) The converted dictionary is : [{'key': 6, 'value': 'Will', 'id': 13}, {'key': 2, 'value': 'Mark', 'id': 15}, {'key': 9, 'value': 'Rob', ... Read More
When it is required to flatten tuple of a list to tuple, a method is defined, that takes input as tuple.The tuple is iterated over, and the same method is called on it over and over again until the result is obtained.Below is the demonstration of the same −Example Live Demodef flatten_tuple(my_tuple): if isinstance(my_tuple, tuple) and len(my_tuple) == 2 and not isinstance(my_tuple[0], tuple): my_result = [my_tuple] return tuple(my_result) my_result = [] for sub in my_tuple: my_result += flatten_tuple(sub) return tuple(my_result) my_tuple = ((35, 46), ((67, ... Read More
ProblemWe are required to write a JavaScript function that takes in number n. Our function should return the nth palindrome number if started counting from 0.For instance, the first palindrome will be 0, second will be 1, tenth will be 9, eleventh will be 11 as 10 is not a palindrome.ExampleFollowing is the code − Live Democonst num = 31; const findNthPalindrome = (num = 1) => { const isPalindrome = (num = 1) => { const reverse = +String(num) .split('') .reverse() .join(''); return reverse === num; }; let count = 0; let i = 0; while(count < num){ if(isPalindrome(i)){ count++; }; i++; }; return i - 1; }; console.log(findNthPalindrome(num));OutputFollowing is the console output −212
ProblemWe are required to write a JavaScript function that takes in a positive number n. We can do at most one operation −Choosing the index of a digit in the number, remove this digit at that index and insert it back to another or at the same place in the number in order to find the smallest number we can get.Our function should return this smallest number.ExampleFollowing is the code − Live Democonst num = 354166; const smallestShuffle = (num) => { const arr = String(num).split(''); const { ind } = arr.reduce((acc, val, index) => { ... Read More
Life Path NumberA person's Life Path Number is calculated by adding each individual number in that person's date of birth, until it is reduced to a single digit number.ProblemWe are required to write a JavaScript function that takes in a date in “yyyy-mm-dd” format and returns the life path number for that date of birth.For instance, if the date is: 1999-06-10year : 1 + 9 + 9 + 9 = 28 → 2 + 8 = 10 → 1 + 0 = 1 month : 0 + 6 = 6 day : 1 + 0 = 1 result: 1 + ... Read More