原文链接: https://leetcode-cn.com/problems/power-of-four
英文原文Given an integer n, return true if it is a power of four. Oth
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原文链接: https://leetcode-cn.com/problems/integer-break
英文原文Given an integer n, break it into the sum of k positive integ
原文链接: https://leetcode-cn.com/problems/water-and-jug-problem
英文原文You are given two jugs with capacities jug1Capacity a
原文链接: https://leetcode-cn.com/problems/valid-perfect-square
英文原文Given a positive integer num, write a function which r
原文链接: https://leetcode-cn.com/problems/sum-of-two-integers
英文原文Given two integers a and b, return the sum of the two i
原文链接: https://leetcode-cn.com/problems/super-pow
英文原文Your task is to calculate ab mod 1337 where a is a positive integ
原文链接: https://leetcode-cn.com/problems/guess-number-higher-or-lower-ii
英文原文We are playing the Guessing Game. The game
原文链接: https://leetcode-cn.com/problems/insert-delete-getrandom-o1
英文原文Implement the RandomizedSet class:
Randomi
原文链接: https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed
英文原文RandomizedCollection is a dat
原文链接: https://leetcode-cn.com/problems/linked-list-random-node
英文原文Given a singly linked list, return a random node