leetcode 第五天 2018年1月6日 22.(566) Reshape the Matrix JAVA class Solution { public int[][] matrixReshape(int[][] nums, int r, int c) { int[][] newNums = new int[r][c]; int size = nums.length*nums[0].length; if(r*c != size) return nums; for(int i=0;i<siz…
leetcode 第四天 2018年1月4日 15.(628)Maximum Product of Three Numbers JAVA class Solution { public int maximumProduct(int[] nums) { Arrays.sort(nums); return (nums[0]*nums[1]*nums[nums.length-1])>(nums[nums.length-1]*nums[nums.length-2]*nums[nums.length-3]…
Given an array nums of integers, you can perform operations on the array. In each operation, you pick any nums[i] and delete it to earn nums[i] points. After, you must delete everyelement equal to nums[i] - 1 or nums[i] + 1. You start with 0 points.…
参考: LEETCODE 中的member access within null pointer of type 'struct ListNode' 解决 leetcode 编译问题:Line x: member access within null pointer of type 'struct TreeNode' 在leetcode上提交代码后出现编译错误: Line x: member access within null pointer of type 'struct TreeNode'…