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Given an integer n, return the number of trailing zeroes in n!. Example 1: Example 2: Note: Your solution should be in logarithmic time complexity. 给一 阅读全文
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In the following, every capital letter represents some hexadecimal digit from 0 to f. The red-green-blue color "#AABBCC" can be written as "#ABC" in s 阅读全文
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There is a garden with N slots. In each slot, there is a flower. The N flowers will bloom one by one in N days. In each day, there will be exactly one 阅读全文
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Given a time represented in the format "HH:MM", form the next closest time by reusing the current digits. There is no limit on how many times a digit 阅读全文
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Design a logger system that receive stream of messages along with its timestamps, each message should be printed if and only if it is not printed in t 阅读全文
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Design a hit counter which counts the number of hits received in the past 5 minutes. Each function accepts a timestamp parameter (in seconds granulari 阅读全文
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Given a sorted array of integers nums and integer values a, b and c. Apply a function of the form f(x) = ax2 + bx + c to each element x in the array. 阅读全文
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You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose o 阅读全文
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https://www.interviewbit.com/problems/design-cache/ Features: This is the first part of any system design interview, coming up with the features which 阅读全文
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You're now a baseball game point recorder. Given a list of strings, each string can be one of the 4 following types: Each round's operation is permane 阅读全文