Data Structure and Algorithms | 2020-06-01 Leetcode 216. Combination Sum III Question k represents the number that can be selected for each combination, n ...
Data Structure and Algorithms | 2020-04-21 Leetcode 131. Palindrome Partitioning Question Give a string, and then cut several times at arbitrary positions to ensure that each sub ...
Data Structure and Algorithms | 2020-03-20 Leetcode 89. Gray Code Question Generate n-bit Gray codes. The so-called Gray codes are two consecutive numbers with onl ...
Data Structure and Algorithms | 2020-03-18 Backtracking Algorithm ConceptThe backtracking algorithm is actually an enumeration-like search attempt process, which is m ...
Data Structure and Algorithms | 2020-03-16 Leetcode 77. Combinations Question Given n, k, select k numbers from {1, 2, 3 ... n}, output all possible, and sort numbers ...
Data Structure and Algorithms | 2020-03-09 Leetcode 47. Permutations II Question Similar to 46. Permutations, the difference is that there will be duplicates in the inpu ...
Data Structure and Algorithms | 2020-03-06 Leetcode 46. Permutations Question Given a few numbers, then output all possible permutations of them. Similar Questions Me ...
Data Structure and Algorithms | 2020-03-01 Leetcode 22. Generate Parentheses Question Give a number n and return all valid parenthetical matches, exactly the opposite of 20. ...
Data Structure and Algorithms | 2020-02-28 Leetcode 17. Letter Combinations of a Phone Number Question Given a string of numbers, each number can represent several letters under a number key. ...
Data Structure and Algorithms | 2020-02-06 Leetcode 93. Restore IP Addresses Question Give a string and output all possible IP addresses. Note that results like 01.1.001.1 wh ...