摘要：Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol... 阅读全文

摘要：Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi... 阅读全文

摘要：Given two stringssandt, write a function to determine iftis an anagram ofs.For example,s= "anagram",t= "nagaram", return true.s= "rat",t= "car", retur... 阅读全文

摘要：Implementint sqrt(int x).Compute and return the square root ofx.思路： 突然发现，二分真TM的是万能的。还有牛顿迭代法，数学的东西，头疼不想看了。还有传说中的“魔数”法，比math库效率都高，试了下RE - -。C++: 1 clas... 阅读全文

摘要：Implement pow(x,n).思路： 实现pow(x,n)函数。首先，可以n次连乘x，但是这样太慢了。加速：2^10 -> 4^5 -> 16^2 * 4 ->256^1 * 4C++: 1 class Solution { 2 public: 3 double myPow(dou... 阅读全文