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Hafiz Usman Ali's Projects

array-filters-project-javscript icon array-filters-project-javscript

This project involved the use of using the HTML5 dataset property to select items from the project's store. This was only the second time I used it and I have a better understanding of how I can use JavaScript to retrieve data from HTML elements.

climbing-stairs-leetcode-python icon climbing-stairs-leetcode-python

You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

leetcode-combine-two-tables icon leetcode-combine-two-tables

Write an SQL query to report the first name, last name, city, and state of each person in the Person table. If the address of a personId is not present in the Address table, report null instead.

leetcode-delete-duplicate-emails icon leetcode-delete-duplicate-emails

Write an SQL query to delete all the duplicate emails, keeping only one unique email with the smallest id. Note that you are supposed to write a DELETE statement and not a SELECT one. After running your script, the answer shown is the Person table.

length-of-last-word-leetcode-python icon length-of-last-word-leetcode-python

Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a maximal substring consisting of non-space characters only.

longest-common-prefix-leetcode-python icon longest-common-prefix-leetcode-python

Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1: Input: strs = ["flower","flow","flight"] Output: "fl" Example 2: Input: strs = ["dog","racecar","car"] Output: "" Explanation: There is no common prefix among the input strings.

merge-sorted-array-leetcode-python icon merge-sorted-array-leetcode-python

You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in nums1 and nums2 respectively.

music-store-managment-system icon music-store-managment-system

Music Library Management System have to manage various musical items comes with number of models and variety. Maintaining all musical records such as create order, calculate bill, add new music in database, edit the music description, and delete any item from large music library was not an easy task on regular basis.

oop-project-music-store-managment-system- icon oop-project-music-store-managment-system-

Music Library Management System have to manage various musical items comes with number of models and variety. Maintaining all musical records such as create order, calculate bill, add new music in database, edit the music description, and delete any item from large music library was not an easy task on regular basis.

palindrome-number-leet-code-python icon palindrome-number-leet-code-python

Given an integer x, return true if x is a palindrome, and false otherwise. Example 1: Input: x = 121 Output: true Explanation: 121 reads as 121 from left to right and from right to left. Example 2: Input: x = -121 Output: false Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.

pass-the-message-project-javascript icon pass-the-message-project-javascript

This project challenges you to select the input element's value from the DOM. When you click on the “Send” button you'll see the message inputted in the box in the “Last Message Delivered” Section. For me this project was fairly easy.

plus-one-leetcode-python icon plus-one-leetcode-python

You are given a large integer represented as an integer array digits, where each digits[i] is the ith digit of the integer. The digits are ordered from most significant to least significant in left-to-right order. The large integer does not contain any leading 0's. Increment the large integer by one and return the resulting array of digits.

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