识别信号
- Candidate should show understanding of basic digit operations and how to optimize them.
- Look for recognition of number properties like digital roots and their use in optimization.
- Candidate should focus on simulating the candy distribution step by step.
解题流程
- 1. 明确窗口/状态定义
- 2. 更新状态并维护约束
- 3. 用边界样例验证
常见失分点
- Misunderstanding the problem and applying unnecessary loops or calculations.
- Misunderstanding the cyclical distribution process and giving candies in the wrong order.
- Failing to correctly simulate the bottle exchange and drinking process.
推荐题单梯度
各位相加
Add Digits involves repeatedly summing digits of a number until a single digit is obtained.
分糖果 II
Distribute candies to people in a way that follows a mathematical pattern, ensuring the distribution is correct.
换水问题
Maximize the number of water bottles you can drink by simulating the exchange process between full and empty bottles.
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Solve Incremental Memory Leak by simulating each second carefully and using math to reason about the crash time bound.
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Simulate operations on two integers until one becomes zero, counting how many steps it takes to achieve the result.
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Given a number, find three consecutive integers that sum to it, or return an empty array if no such integers exist.
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换水问题 II
Compute the maximum number of water bottles you can drink by simulating exchanges with step-by-step math logic.
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Find the child who holds the ball after k seconds of passing in a queue, considering reversals at both ends.
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