classSolution{public:intthreeSumMulti(vector<int>& A,inttarget){intres =0, n = A.size(), M =1e9+7; unordered_map<int,int> numCnt;for(inti =0; i < n; ++i) { res = (res + numCnt[target - A[i]]) % M;for(intj =0; j < i; ++j) {intsum = A[i] + A[j]; ++nu...
i]满足case if(sum >= lower && sum <= upper){ cnt++; } //find sum[j] 的个数that lies in [sum[i] - high, sum[i] - lower]之间 cnt += map.subMap(sum - upper, true, sum - lower, true).values().stream
class Node { Node parent; Node left; Node right; int startIndex; int endIndex; int sum; } public class NumArray { private Node treeRoot; public NumArray(int[] nums) { if (nums!=null && nums.length!=0) { this.treeRoot = new Node(); buildTree(this.treeRoot, nums, 0, nums.len...
Partition Equal Subset Sum 【题目】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 ...
LeetCode209 Medium 长度最小子数组https://leetcode-cn.com/problems/minimum-size-subarray-sum LeetCode220 Medium 存在重复元素IIIhttps://leetcode-cn.com/problems/contains-duplicate-iii/ 滑动窗口+有序集合 LeetCode239 Hard 滑动窗口最大值https://leetcode-cn.com/problems/sliding-window-maximum ...
Return the minimum number of operations required to make the sum of values in nums1 equal to the sum of values in nums2. Return -1 if it is not possible to make the sum of the two arrays equal. Example 1:
325 Maximum Size Subarray Sum Equals k Medium Solution 326 Power of Three Easy Solution 327 Count of Range Sum Hard Solution 328 Reverse Linked List Easy Solution 329 Longest Increasing Path in a Matrix Hard Solution 330 Patching Array Hard Solution 331 Verify Preorder Serialization of a Binary ...
2213.Longest-Substring-of-One-Repeating-Character (H) 2276.Count-Integers-in-Intervals (H-) 2382.Maximum-Segment-Sum-After-Removals (M+) Sorted_Container w/ monotonic mapping values 2940.Find-Building-Where-Alice-and-Bob-Can-Meet (H) 2926.Maximum-Balanced-Subsequence-Sum (H) 2907.Maximum-Pro...
0325 Maximum Size Subarray Sum Equals k 46.8% Medium 0326 Power of Three Go 42.1% Easy 0327 Count of Range Sum Go 35.1% Hard 0328 Odd Even Linked List Go 55.7% Medium 0329 Longest Increasing Path in a Matrix Go 43.4% Hard 0330 Patching Array 34.5% Hard 0331 Verify Preorder Se...
给出二叉 搜索 树的根节点,该树的节点值各不相同,请你将其转换为累加树(Greater Sum Tree),使每个节点 node 的新值等于原树中大于或等于 node.val 的值之和。 提醒一下,二叉搜索树满足下列约束条件: 节点的左子树仅包含键 小于 节点键的节点。