Leetcode #371: Sum of Two Integers
https://leetcode.com/problems/sum-of-two-integers/description/ One approach is to use the concept of bitwise operations to perform addition operation. In binary representation, addition can…
Category: LeetCode Solutions
Step by step guide to LeetCode solutions.
LeetCode #268: Missing Number
https://leetcode.com/problems/missing-number/description/ There are multiple approaches that we can take to solve this problem. One of the most straightforward approaches is…
LeetCode #190: Reverse Bits
https://leetcode.com/problems/reverse-bits/description/ To solve this problem, we can use bit manipulation. We will iterate through each bit of the given integer…
LeetCode #338: Counting Bits
https://leetcode.com/problems/counting-bits/ We need to find the number of 1’s in the binary representation of each number from 0 to n.…
LeetCode #191: Number of 1 Bits
https://leetcode.com/problems/number-of-1-bits/description/ The problem “Number of 1 Bits” requires us to count the number of 1 bits in an unsigned integer.…
LeetCode #73: Set Matrix Zeroes
https://leetcode.com/problems/set-matrix-zeroes/description/ One approach to solving this problem is to use the first row and column of the matrix to keep…
LeetCode #54: Spiral Matrix
https://leetcode.com/problems/spiral-matrix/ The problem requires us to return a list of integers in the order of the elements visited in a…
LeetCode #48: Rotate Image
https://leetcode.com/problems/rotate-image/ To rotate a matrix in-place by 90 degrees, we will use a nested loop to iterate over each of…
LeetCode #253: Meeting Rooms II
https://leetcode.com/problems/meeting-rooms-ii/ To solve this problem, we will use a heap and a greedy approach. We will keep track of the…
LeetCode #252: Meeting Rooms
https://leetcode.com/problems/meeting-rooms/description/ In this problem, we are given a list of intervals, each representing a meeting start and end time, and…