Description Submission
41. First Missing Positive
Description Submission References https://leetcode.com/problems/first-missing-positive/discuss/735695/Java-Time-O(n)-Constant-space-SWAP-approach
37. Sudoku Solver
Description Submission References https://leetcode.com/problems/sudoku-solver/discuss/734304/Extremely-Simple-CPP-Solution-with-excessive-comments-and-Line-by-Line-explanation.
30. Substring with Concatenation of All Words
Description Submission Following is a tricky test case. Since the total length is obviously longer than the string s, the special case can be solved […]