LeetCode # Title Solution Blog Difficult 5626 Partitioning Into Minimum Number Of Deci-Binary Numbers Java CSDN Medium 5625 Count of Matches in Tournament Java CSDN Easy 1572 Matrix Diagonal Sum Java CSDN Easy 1534 Count Good Triplets Java CSDN Easy 1528 Shuffle String Java CSDN Easy 1512 Number of Good Pairs Java CSDN Easy 1502 Can Make Arithmetic Progression From Sequence Java CSDN Easy 1486 XOR Operation in an Array Java CSDN Easy 1480 Running Sum of 1d Array Java CSDN Easy 1470 Shuffle the Array Java CSDN Easy 1450 Number of Students Doing Homework at a Given Time Java CSDN Easy 1436 Destination City Java CSDN Easy 1431 Create Target Array in the Given Order Java CSDN Easy 1351 count-negative-numbers-in-a-sorted-matrix Java CSDN Easy 1289 Create Target Array in the Given Order Java CSDN Easy 1365 How Many Numbers Are Smaller Than the Current Number Java CSDN Easy 1342 Number of Steps to Reduce a Number to Zero Java CSDN Easy 1313 Decompress Run-Length Encoded List Java CSDN Easy 1290 Convert Binary Number in a Linked List to Integer Java CSDN Easy 1281 Subtract the Product and Sum of Digits of an Integer Java CSDN Easy 1266 Minimum Time Visiting All Points Java CSDN Easy 1221 Split a String in Balanced Strings Java CSDN Easy 1108 Defanging an IP Address Java CSDN Easy 1002 Find Common Characters Java CSDN Easy 999 Available Captures for Rook Java CSDN Easy 989 Add to Array-Form of Integer Java CSDN Easy 985 Sum of Even Numbers After Queries Java CSDN Easy 922 Sort Array By Parity II Java CSDN Easy 917 Reverse Only Letters Java CSDN Easy 905 Sort Array By Parity Java CSDN Easy 896 Monotonic Array Java CSDN Easy 867 Transpose Matrix Java CSDN Easy 844 Backspace String Compare Java CSDN Easy 832 Flipping an Image Java CSDN Easy 747 Largest Number At Least Twice of Others Java CSDN Easy 703 Kth Largest Element in a Stream Java CSDN Easy 692 Top K Frequent Words Java CSDN Medium 628 Maximum Product of Three Numbers Java CSDN Easy 566 Reshape the Matrix Java CSDN Easy 561 Array Partition I Java CSDN Easy 547 Friend Circles Java CSDN Medium 520 Detect Capital Java CSDN Easy 509 Fibonacci Number Java CSDN Easy 485 Max Consecutive Ones Java CSDN Easy 461 Hamming Distance Java CSDN Easy 412 fizz-buzz Java CSDN Easy 344 reverse-string Java CSDN Easy 326 power-of-three Java CSDN Easy 322 Coin Change Java CSDN Medium 300 Longest Increasing Subsequence Java CSDN Medium 292 Nim Game Java CSDN Easy 283 move-zeroes Java CSDN Easy 268 Missing Number Java CSDN Easy 242 Valid Anagram Java CSDN Easy 239 Sliding Window Maximum Java CSDN Hard 237 Delete Node in a Linked List Java CSDN Easy 236 Lowest Common Ancestor of a Binary Tree Java CSDN Medium 235 Lowest Common Ancestor of a Binary Search Tree Java CSDN Easy 232 Implement Queue using Stacks Java CSDN Easy 225 Implement Stack using Queues Java CSDN Easy 217 contains-duplicate Java CSDN Easy 208 Implement Trie (Prefix Tree) Java CSDN Medium 206 Isomorphic Strings Java CSDN Easy 202 happy-number Java CSDN Easy 200 Number of Islands Java CSDN Medium 190 reverse-bits Java CSDN Easy 169 Majority Element Java CSDN Easy 191 number-of-1-bits Java CSDN Easy 171 excel-sheet-column-number Java CSDN Easy 160 intersection-of-two-linked-lists Java CSDN Easy 155 min-stack Java CSDN Easy 152 Maximum Product Subarray Java CSDN Medium 146 LRU Cache Java CSDN Medium 145 Binary Tree Postorder Traversal Java CSDN Hard 144 Binary Tree Preorder Traversal Java CSDN Medium 142 Linked List Cycle II Java CSDN Medium 141 Linked List Cycle Java CSDN Easy 136 single-number Java CSDN Easy 125 Valid Palindrome Java CSDN Easy 122 Best Time to Buy and Sell Stock II Java CSDN Easy 121 Best Time to Buy and Sell Stock Java CSDN Easy 120 Triangle Java CSDN Medium 118 Pascal's Triangle Java CSDN Easy 111 Minimum Depth of Binary Tree Java CSDN Easy 108 convert-sorted-array-to-binary-search-tree Java CSDN Easy 104 Maximum Depth of Binary Tree Java CSDN Easy 102 Binary Tree Level Order Traversal Java CSDN Medium 98 Validate Binary Search Tree Java CSDN Medium 94 Binary Tree Inorder Traversal Java CSDN Medium 70 Climbing Stairs Java CSDN Easy 69 Sqrt(x) Java CSDN Easy 66 Plus One Java CSDN Easy 52 N-Queens II Java CSDN Hard 51 N-Queens Java CSDN Hard 50 Pow(x, n) Java CSDN Medium 38 count-and-say Java CSDN Easy 36 Valid Sudoku Java CSDN Medium 35 Search Insert Position Java CSDN Easy 28 Implement strStr() Java CSDN Easy 27 Remove Element Java CSDN Easy 25 Reverse Nodes in k-Group Java CSDN Hard 24 Swap Nodes in Pairs Java CSDN Medium 22 Generate Parentheses Java CSDN Medium 21 merge-two-sorted-lists Java CSDN Easy 20 Valid Parentheses Java CSDN Easy 18 4Sum Java CSDN Medium 15 3Sum Java CSDN Medium 13 roman-to-integer Java CSDN Easy 9 Palindrome Number Java CSDN Easy 7 Reverse Integer Java CSDN Easy 5 Longest Palindromic Substring Java CSDN Medium 4 Median of Two Sorted Arrays Java CSDN Hard 3 Longest Substring Without Repeating Characters Java CSDN Medium 2 Add Two Numbers Java CSDN Medium 1 Two Sum Java CSDN Easy