3.1 Java实现 publicclassSolution{publicbooleancanPartition(int[] nums){// 数组求和intsum=Arrays.stream(nums).sum();// 场景1:和为奇数不能均分if(sum %2==1) {returnfalse; }inttarget=sum /2;intn=nums.length;boolean[][] dp =newboolean[n +1][target +1]; dp[0][0] =true;for(inti...
[leetcode]416. Partition Equal Subset Sum Given a non-empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both subsets is equal. 给定一个非空数组,是否能把数组划分为两个和相等的子集。 Not......
代码如下: classSolution(object):defcanPartition(self, nums):""":type nums: List[int] :rtype: bool"""ifsum(nums) % 2 == 1:returnFalse nums.sort() dp= [0] * (sum(nums)+1) dp[nums[0]]= 1total=nums[0]foriinrange(1,len(nums)):forjinrange(total+1):ifdp[j] == 1: dp[...
public class Solution { public boolean canPartition(int[] nums) { // 数组求和 int sum = Arrays.stream(nums).sum(); // 场景1:和为奇数不能均分 if (sum % 2 == 1) { return false; } int target = sum / 2; int n = nums.length; boolean[][] dp = new boolean[n + 1][target ...
来自专栏 · LeetCode Description Given a non-empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both subsets is equal. Note: Each of the array element will not exceed 100.The array size will not exceed 200...
Leetcode每日一题:416.partition-equal-subset-sum(分割等和子集),思路:这题从动态规划的思想上来看很像0-1背包问题,后者需要小于等于背包容量的条件下价值最大化,这里则是刚好等于数组之和的一半;1°,要想满足条件,数组之和sum必须为偶数,并且目标值target=sum/
9-7 面试中的0-1背包问题 Partition Equal Subset Sum 题目: LeetCode 416. 分割等和子集 给定一个只包含正整数的非空数组。是否可以将这个数组分割成两个子集,使得两个子集的元素和相等。 注意: 每个数组中的元素不会超过 100 数组的大小不会超过 200 示例1: 输入: [1, 5, 11, 5] 输出: true 解释:...
如果数组长度为N,目标sum(即总和的一半)是M,由于全部是正整数,那么在递推过程中涉及到的和只可能是0到M,于是可以用一个 N x (M+1) 的表格tab记录结果。其中tab[i][j]表示在第0至i个数中,是否存在和为j的子集。时间复杂度为O(MN),因为每次递推只需要用到上一行的结果,则空间复杂度可以优化到O(M)...
Input:nums = [1,2,3,5]Output:falseExplanation:The array cannot be partitioned into equal sum subsets. Constraints: 1 <= nums.length <= 200 2. The problem discussion is for asking questions about the problem or for sharing tips - anything except for solutions. ...
题目地址:https://leetcode.com/problems/partition-to-k-equal-sum-subsets/description/ 题目描述 Given an array of integers nums and a positive integer k, find whether it’s possible to divide this array into k non-empty subsets whose sums are all equal. ...