class Solution { public: // param n : description of n // return: description of return long long trailingZeros(long long n) { ; ; n / i; i *= ) counts += n / i; return counts; } };…
Write an algorithm which computes the number of trailing zeros in n factorial. Have you met this question in a real interview? Yes Example 11! = 39916800, so the out should be 2 Challenge O(log N) time LeetCode上的原题,请参见我之前的博客Factorial Trailing Zeroes.…
Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements. Notice You must do this in-place without making a copy of the array. Minimize the total number of operations. Exam…
刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: 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 on A as follow: F(k…