import java.util.ArrayList;import java.util.List;/** * @Author: ck * @Date: 2021/10/3 11:43 上午 */publicclassLeetCode_507{publicstaticbooleancheckPerfectNumber(int num){ List<Integer> primeFactor = calculateAllPrimeFactor(num);for (Integer integer : primeFactor) { num -= integer...
不仅返回int型报错了,而且递归算全排列,虽然看上去代码很清晰简洁,但是运行的时候很消耗内存,修改为: int check(int num){ int i; if(num==1){ return false; } if(num==2){ return true; } for(i=2;i<=num/2;i++){ if(num%i==0){ return false; } } return true; } int numPrimeArrange...
统计移除递增子数组的数目 I Count the Number of Incremovable Subarrays I 力扣 LeetCode 题解 05:41 3102. 最小化曼哈顿距离 Minimize Manhattan Distances 力扣 LeetCode 题解 17:31 724. 寻找数组的中心下标 Find Pivot Index 力扣 LeetCode 题解 06:32 1958. 检查操作是否合法 Check if Move is Legal...
public class Solution { private int MAX_LEN = String.valueOf(Integer.MAX_VALUE).length(); public boolean isAdditiveNumber(String num) { for (int i=0; i<MAX_LEN && i<num.length(); i++) { for (int j=i+1; j-(i+1)<MAX_LEN && j<num.length(); j++) { // first number: [...
Write a program to check whether a given numberisan ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are uglywhile14isnot ugly since it includes another prime factor 7.
2970. 统计移除递增子数组的数目 I Count the Number of Incremovable Subarrays I 力扣 LeetCode 题解 05:41 3102. 最小化曼哈顿距离 Minimize Manhattan Distances 力扣 LeetCode 题解 17:31 724. 寻找数组的中心下标 Find Pivot Index 力扣 LeetCode 题解 06:32 1958. 检查操作是否合法 Check if Move...
1346 Check If N and Its Double Exist 36.70% Easy 1345 Jump Game IV 46.60% Hard 1344 Angle Between Hands of a Clock 63.40% Medium 1343 Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold 68.10% Medium 1342 Number of Steps to Reduce a Number to Zero 84.90% ...
Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include2, 3, 5. Example 1: Input: 6 Output: true Explanation: 6 = 2 × 3 1. 2. 3. Example 2:
[LeetCode]: 263: Ugly Number 题目: Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,6, 8are ugly while14is not ugly since it includes another prime factor7....
2970. 统计移除递增子数组的数目 I Count the Number of Incremovable Subarrays I 力扣 LeetCode 题解 05:41 3102. 最小化曼哈顿距离 Minimize Manhattan Distances 力扣 LeetCode 题解 17:31 724. 寻找数组的中心下标 Find Pivot Index 力扣 LeetCode 题解 06:32 1958. 检查操作是否合法 Check if Move...