100DayOfCode

This repo is to track my 100DayOfCoding Challenge and my aim here is to improve my Python knowledge and techinical skills. The problems are selected from a collection of coding challenges from Udemy's Python Hand-on Solve 200 Problems.

It covers a wide range of topics which I will be using an overview to track my progress. Daily breakdowns can be found further below.

Overview of Topics

Topic	Completion
array	6/6
basic	3/3
class	8/8
condition_and_loop	12/12
datetime	5/5
dictionary	6/6
file	4/4
list	10/10
math	5/5
numpy	0/100
recursion	5/5
regex	8/8
search	0/2
sort	0/6
string	0/10

Detailed daily logs

Day	Challenge
1	array/Find length of the longest substring without repeating characters.✔️ array/Given a collections of intervals, merge all overlapping intervals.✔️
2	array/Given two arrays, find which/all elements missing in the second array.✔️
3	basic/Take in an integer n and computes the value of n + nn + nnn.✔️ basic/Ask user to enter their name and their age.✔️ basic/Print a string in a specific format.✔️
4	array/Rotate an array of n elements to the right by k steps.✔️
5	array/Given a sorted integer array without duplicates, return the summary of its ranges.✔️
6	array/Given an array of integers, return indices of the two numbers such that they add up to a specific target.✔️
7	condition_and_loop/Find numbers which are divisible by 7 and multiple of 5, between 1500 and 2700.✔️
8	condition_and_loop/Take two digits m (row) and n (column) as input and generates a two-dimensional array.✔️
9	condition_and_loop/Check if a triangle is valid.✔️
10	condition_and_loop/Construct a specific number pattern using a nested for loop.✔️
11	condition_and_loop/Construct a specific symbol pattern using a nested for loop.✔️
12	condition_and_loop/Take in a string and calculate the number of digits and letters.✔️
13	condition_and_loop/Count the number of even and odd numbers from a series of numbers.✔️
14	condition_and_loop/Get the Fibonacci series between 0 to 50.✔️
15	condition_and_loop/Guessing game by generating a random number between 1 and 9 (inclusive).✔️
16	condition_and_loop/Check if a triangle is equilateral, isosceles or scalene.✔️
17	condition_and_loop/Check whether an alphabet is a vowel or consonant.✔️
18	condition_and_loop/Check the validity of a user input password.✔️
19	class/Check validity of a string of parentheses, '(', ')', '{', '}', '[' and ']'.✔️
20	class/Compute area and parameter given the radius.✔️
21	class/Convert a roman numeral to an integer.✔️
22	class/Convert a roman integer to an numeral.✔️
23	class/Compute area of a rectangle given the length and width.✔️
24	class/Using a Class, get user input and print it.✔️
25	class/Reverse a string word by word.✔️
26	class/Find all sets of three elements that sum up to zero from an array of n real numbers.✔️
27	datetime/Convert Year/Month/Day to Day of Year. datetime/Get the current time.✔️
28	datetime/Display various Datetime formats.✔️ datetime/Get current time in milliseconds.✔️ datetime/Subtract five days from current date.✔️
29	dictionary/Check if a given key already exists in a dictionary.✔️
30	dictionary/Concatenate multiple dictionaries.✔️
31	dictionary/Iterate over dictionaries using for loops.✔️
32	dictionary/Sort a dictionary by value (ascending and descending).✔️
33	dictionary/Print a dictionary where the values are square of keys in range [1:16].✔️
34	dictionary/Sum the values of all items in a dictionary.✔️
35	file/Get the file size of a plain file.✔️
36	file/Read first n lines of a file.✔️
37	file/Find the longest words in a file.✔️
38	file/Read a random line from a file.✔️
39	list/Convert a list of characters into a string.✔️
40	list/Check whether a list contains a sublist.✔️
41	list/Find common items from two lists.✔️
42	list/Get the difference between the two lists.✔️
43	list/Get the largest number from a list.✔️
44	list/Get the frequency of the elements in a list.✔️
45	list/Generate all permutations of a list in Python.✔️
46	list/Remove duplicates from a list.✔️
47	list/Find the second smallest number in a list.✔️
48	list/Sum all the items in a list.✔️
49	math/Convert a binary number to decimal number.✔️
50	math/Flip a coin 1000 times and count heads and tails.✔️
51	math/Generate a series of unique random numbers.✔️
52	math/Round up a number to specified digits.✔️
53	math/Calculate standard deviation of given data.✔️
54	recursion/Calculate the value of 'a' to the power 'b'.✔️
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