| Problem Number | Problem Name | Jump into Code | Explanation | Difficulty Level |
|---|---|---|---|---|
| 40 | Combination Sum II | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 273 | Integer to English Words | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 350 | Intersection of Two Arrays II | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 386 | Lexicographical Numbers | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 407 | Trapping Rain Water II | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 432 | All O`one Data Structure | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 440 | K-th Smallest in Lexicographical Order | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 476 | Number Complement | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 567 | Permutation in String | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 632 | Smallest Range Covering Elements from K Lists | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 641 | Design Circular Deque | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 650 | 2 Keys Keyboard | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 664 | Strange Printer | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 670 | Maximum Swap | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 684 | Redundant Connection | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 703 | Kth Largest Element in a Stream | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 719 | Find K-th Smallest Pair Distance | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 729 | My Calendar I | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 731 | My Calendar II | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 796 | Rotate String | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 802 | Find Eventual Safe States | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 840 | Magic Squares In Grid | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 862 | Shortest Subarray with Sum at Least K | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 885 | Spiral Matrix III | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 916 | Word Subsets | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 947 | Most Stones Removed with Same Row or Column | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 959 | Regions Cut By Slashes | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 962 | Maximum Width Ramp | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1105 | Filling Bookcase Shelves | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1106 | Parsing A Boolean Expression | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 1140 | Stone Game II | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1267 | Count Servers that Communicate | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1277 | Count Square Submatrices with All Ones | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1331 | Rank Transform of an Array | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 1368 | Minimum Cost to Make at Least One Valid Path in a Grid | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 1381 | Design a Stack With Increment Operation | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1400 | Construct K Palindrome Strings | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1405 | Longest Happy String | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1408 | String Matching in an Array | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 1460 | Make Two Arrays Equal by Reversing Subarrays | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 1462 | Course Schedule IV | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1497 | Check If Array Pairs Are Divisible by k | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1509 | Minimum Difference Between Largest and Smallest Value in Three Moves | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1545 | Find Kth Bit in Nth Binary String | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1568 | Minimum Number of Days to Disconnect Island | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 1574 | Shortest Subarray to be Removed to Make Array Sorted | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1590 | Make Sum Divisible by P | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1598 | Crawler Log Folder | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 1671 | Minimum Number of Removals to Make Mountain Array | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 1701 | Average Waiting Time | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1765 | Map of Highest Peak | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1769 | Minimum Number of Operations to Move All Balls to Each Box | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1813 | Sentence Similarity III | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1823 | Find the Winner of the Circular Game | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1829 | Maximum XOR for Each Query | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1894 | Find the Winner of the Circular Game | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1930 | Unique Length-3 Palindromic Subsequences | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1937 | Find the Student that Will Replace the Chalk | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1942 | The Number of the Smallest Unoccupied Chair | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 1957 | Delete Characters to Make Fancy String | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2017 | Grid Game | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2022 | Convert 1D Array Into 2D Array | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2044 | Count Number of Maximum Bitwise-OR Subsets | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2053 | Kth Distinct String in an Array | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2064 | Minimized Maximum of Products Distributed to Any Store | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2070 | Most Beautiful Item for Each Query | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2116 | Check if a Parentheses String Can Be Valid | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2127 | Maximum Employees to Be Invited to a Meeting | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 2134 | Minimum Swaps to Group All 1's Together II | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2185 | Counting Words With a Given Prefix | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2270 | 2270. Number of Ways to Split Array | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2275 | Largest Combination With Bitwise AND Greater Than Zero | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2381 | Shifting Letters II | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2406 | Divide Intervals Into Minimum Number of Groups | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2416 | Sum of Prefix Scores of Strings | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 2425 | Bitwise XOR of All Pairings | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2429 | Minimize XOR | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2490 | Circular Sentence | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2491 | Divide Players Into Teams of Equal Skill | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2501 | Longest Square Streak in an Array | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2530 | Maximal Score After Applying K Operations | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2559 | 2559. Count Vowel Strings in Ranges | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2563 | Count the Number of Fair Pairs | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2601 | Prime Subtraction Operation | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2658 | Maximum Number of Fish in a Grid | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2661 | First Completely Painted Row or Column | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2678 | Number of Senior Citizens | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2683 | Neighboring Bitwise XOR | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2684 | Maximum Number of Moves in a Grid | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2696 | Minimum String Length After Removing Substrings | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 2707 | Extra Characters in a String | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 2751 | Robot Collisions | C++, Java, JavaScript, Python, Go | Explanation | Hard |
| 2938 | Separate Black and White Balls | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 3042 | Count Prefix and Suffix Pairs I | C++, Java, JavaScript, Python, Go | Explanation | Easy |
| 3043 | Find the Length of the Longest Common Prefix | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 3163 | String Compression III | C++, Java, JavaScript, Python, Go | Explanation | Medium |
| 3254 | Find the Power of K-Size Subarrays I | C++, Java, JavaScript, Python, Go | Explanation | Medium |
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