3483. Unique 3-Digit Even Numbers

LeetCodeArrayHash TableRecursionEnumerationOpen on judge ↗

You are given an array of digits called digits. Your task is to determine the number of distinct three-digit even numbers that can be formed using these digits. Note: Each copy of a digit can only be used once per number, and there may not be leading zeros. Example 1: Input: digits = [1,2,3,4] Output: 12 Explanation: The 12 distinct 3-digit even numbers that can be formed are 124, 132, 134,

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

🔒

L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI