题目描述：
LeetCode 399. Evaluate Division
p> Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given some queries, return the answers. If ...
作者归档：在线疯狂
[LeetCode]Evaluate Division
[LeetCode]Random Pick Index
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LeetCode.
题目描述：
LeetCode 398. Random Pick Index
Given an array of integers with possible duplicates, randomly output the index of a given target number. You can assume that the given target number must exist in the array.
Note:
The array size ...
[LeetCode]Integer Replacement
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LeetCode.
题目描述：
LeetCode 397. Integer Replacement
Given a positive integer n and you can do operations as follow:
- If n is even, replace n with
n/2. - If n is odd, you can replace n with either
n + 1orn ...
[LeetCode]Rotate Function
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LeetCode.
题目描述：
Given an array of integers A and let n to be its length.
Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F ...
[LeetCode]Permutations
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LeetCode.
题目描述：
Given a collection of distinct numbers, return all possible permutations.
For example,
[1,2,3] have the following permutations:
[ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2 ...