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problem solutions of some of the selective leetcode problems.

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Leetcode

problem solutions of some of the selective DSA problems from various platforms but mainly Leetcode. Most with the best efficient solutions except for the once where i used recursive approach to solve the problem (for learning purposes).

LeetCode Topics

Hash Table

0139-word-break
0523-continuous-subarray-sum
2025-redistribute-characters-to-make-all-strings-equal

String

0008-string-to-integer-atoi
0139-word-break
0241-different-ways-to-add-parentheses
2025-redistribute-characters-to-make-all-strings-equal

Counting

2025-redistribute-characters-to-make-all-strings-equal
2269-count-elements-with-strictly-smaller-and-greater-elements

Math

0050-powx-n
0241-different-ways-to-add-parentheses
0445-add-two-numbers-ii
0523-continuous-subarray-sum
1951-find-the-winner-of-the-circular-game
2050-count-good-numbers
2645-pass-the-pillow

Simulation

1951-find-the-winner-of-the-circular-game
2645-pass-the-pillow

Array

0090-subsets-ii
0139-word-break
0523-continuous-subarray-sum
0890-lemonade-change
1408-find-the-smallest-divisor-given-a-threshold
1951-find-the-winner-of-the-circular-game
2269-count-elements-with-strictly-smaller-and-greater-elements

Dynamic Programming

0139-word-break
0241-different-ways-to-add-parentheses

Trie

0139-word-break

Memoization

0139-word-break
0241-different-ways-to-add-parentheses

Greedy

0890-lemonade-change

Recursion

0050-powx-n
0241-different-ways-to-add-parentheses
1951-find-the-winner-of-the-circular-game
2050-count-good-numbers

Queue

1951-find-the-winner-of-the-circular-game

Backtracking

0090-subsets-ii

Bit Manipulation

0090-subsets-ii

Linked List

0445-add-two-numbers-ii

Stack

0445-add-two-numbers-ii

Sorting

2269-count-elements-with-strictly-smaller-and-greater-elements

Binary Search

1408-find-the-smallest-divisor-given-a-threshold

Prefix Sum

0523-continuous-subarray-sum

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