Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The order of the elements may be changed. Then return the number of elements in nums which are not equal ...

The current problem statement for 27. Remove Element does not include a test case where all elements in the input array are equal to val. This can allow incorrect solutions to pass even though they ...

LeetCode’s Java ecosystem is evolving beyond mere algorithmic correctness, with a growing emphasis on code quality metrics such as readability, maintainability, and performance profiling.