Leveraging LeetCode’s Custom Test Pane for Rapid Local Debugging
Learn how to use LeetCode’s Custom Test pane to run arbitrary inputs, see exact output, and measure performance before submitting your solution.
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leetcodeRead the Constraints First: Using LeetCode's Limits and Custom Test Runner to Pick the Right Algorithm
LeetCode's constraints and Run Code runner are a specification and a free debugging pass. Learn to derive a complexity budget from input bounds, debug edge cases without submitting, and read verdicts as signals.