Return the minimum number of operations to make all elements of nums equal to 1. If it is impossible, return -1. The gcd of two integers is the greatest common divisor of the two integers. Example 1: Input: nums = [2,6,3,4] Output: 4 Explanation: We can do the following operation...
Java实现 1classSolution {2publicintminOperations(intn) {3intm = n / 2;4if(n % 2 == 1) {5returnm * (m + 1);6}else{7returnm *m;8}9}10} LeetCode 题目总结
You are given an integer arraynums(0-indexed). In one operation, you can choose an element of the array and increment it by1. For example, ifnums = [1,2,3], you can choose to incrementnums[1]to makenums = [1,3,3]. Return the minimum number of operations needed to makenumsstric...
[LeetCode 1526] Minimum Number of Increments on Subarrays to Form a Target Array Given an array of positive integerstargetand an arrayinitialof same size with all zeros. Return the minimum number of operations to form atargetarray frominitialif you are allowed to do the following operation: C...
一个房间里有 n 个座位和 n 名学生,房间用一个数轴表示。给你一个长度为 n 的数组 seats ,其中 seats[i] 是第i 个座位的位置。同时给你一个长度为 n 的数组 students ,其中 students[j] 是第j 位学生的位置。 你可以执行以下操作任意次: 增加或者减少第 i 位学生的位置,每次变化量为 1 (也就是将...
In one operation, you can either remove the leftmost or the rightmost element from the array nums and subtract its value from x. Note that this modifies the array for future operations. Return the minimum number of operations to reduce x to exactly 0 if it's possible, otherwise, return -...
LeetCode 1557M 可以到达所有点的最少点数目Minimum Number of Vertices to Reach All Nodes 王几行XING 北京大学 计算机技术硕士 来自专栏 · LeetCode·力扣·300首 读题 解法一:入度为0的节点 简单来说,我们要找的是图中所有入度为0的节点,因为只有这些节点不是任何其他节点的目的地,所以从这些节点出...
AI代码解释 classSolution:defminOperations(self,nums:List[int],x:int)->int:n=len(nums)total=sum(nums)iftotal<x:return-1iftotal==x:returnn target=total-x prefix=0stat={}stat[0]=-1maximum=-1foriinrange(n):prefix+=nums[i]stat[prefix]=iifprefix-targetinstat:maximum=max(maximum,i-stat...
Leetcode 1347. Minimum Number of Steps to Make Two Strings Anagram,题目链接:MinimumNumberofStepstoMakeTwoStringsAnagram题目大意:给定两个相同长度得字符串s和t,对于s中得字符
Leetcode 1284 Minimum Number of Flips to Convert Binary Matrix to Zero Matrix 题意:给定一个01矩阵,每次可以翻转一个数字,同时它的上下左右也会翻转,求最少翻转次数使得矩阵全为1 题解:n <=3, m <= 3,状压dp表示第i,j个坐标是否翻转,求最小次数即可。 AC代码: ......