#1018
Binary Prefix Divisible By 5
pupil · 440 · lc easy +26 · verified · 53.5% accepted · 1,102 likes · top 45%
Description
You are given a binary array nums (0-indexed). For each index i, let xi be the number whose binary form is the prefix nums[0..i] (from most- to least-significant bit).
- For example, nums = [1,0,1] gives x0 = 1, x1 = 2, x2 = 5.
Return a boolean array answer where answer[i] is true if xi is divisible by 5.
Example 1:
Input: nums = [0,1,1]
Output: [true,false,false]
Explanation: The input numbers in binary are 0, 01, 011; which are 0, 1, and 3 in base-10.
Only the first number is divisible by 5, so answer[0] is true.
Example 2:
Input: nums = [1,1,1]
Output: [false,false,false]
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