August 2021 LeetCoding Challenge Day Question Links Solutions Optimize Water Distribution in a Village cpp 1. Making A Large Island cpp 2. Two Sum cpp 3. Subsets II cpp 4. Path Sum II cpp 5. Stone Game cpp 6. N-ary Tree Level Order Traversal cpp 7. Palindrome Partitioning II cpp Paint Fence cpp 9. Add Strings cpp 10. Flip String to Monotone Increasing cpp 11. Array of Doubled Pairs cpp 12. Group Anagrams cpp 13. Set Matrix Zeroes cpp Paint House II cpp 15. Minimum Window Substring cpp 16. Range Sum Query - Immutable cpp 17. Count Good Nodes in Binary Tree cpp 18. Decode Ways cpp 19. Maximum Product of Splitted Binary Tree cpp 20. Valid Sudoku cpp 21. Sudoku Solver cpp Graph Valid Tree cpp 23. Two Sum IV - Input is a BST cpp 24. Complex Number Multiplication cpp 25. Sum of Square Numbers cpp 26. Verify Preorder Serialization of a Binary Tree cpp 27. Longest Uncommon Subsequence II cpp 28. Maximum Profit in Job Scheduling cpp Equal Tree Partition cpp 30. Range Addition II cpp 31. Find Minimum in Rotated Sorted Array cpp