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Blind 75 Questions with Solutions
Blind 75 Questions with Solutions
Learn the Two Pointers technique and related patterns to efficiently solve array, string, and linked list problems.
Write a function that accepts a string s as input and checks whether it is a palindrome.
Build a strong foundation in fundamental data structures like arrays, stacks, queues, and hash maps.
Learn and apply tree depth-first search, tree breadth-first search, and backtracking patterns to efficiently solve problems.
Given a binary tree, return an array representing its level-order traversal. Each level's node values should be stored in separate sub-arrays, ordered from left to right.
Use heaps, hashing, and efficient tracking techniques to optimize search, sorting, and frequency counting.
Combine problem-solving techniques like merge intervals and K-way merge patterns to tackle coding interview problems.
Given a sorted list of nonoverlapping intervals and a new interval, insert the new interval into the correct position while ensuring that the resulting list of intervals remains sorted and nonoverlapping.
Learn advanced optimization techniques like memoization, greedy algorithms, pruning, and bit manipulation to solve questions.
In a jump game, the player starts at index 0 of an array nums and moves up to s steps, where s is the current value. Write a function to check if reaching the last index is possible, returning TRUE if yes, else FALSE.
Find out how to practice tries, graphs, cyclic sort and topological sort patterns to solve coding problems.
Implement a trie data structure with three functions that perform Insert (word), Search (word), and Search prefix (prefix).
Practice the bitwise manipulation, sliding window, and union find patterns to crack coding interview problems.
Create encode to convert a string array into a single string for transmission. Create decode to restore the original array from the encoded string.