The pair (0, 3) is a bad pair since 3 - 0 != 3 - 4, 3 != -1. The pair (1, 2) is a bad pair since 2 - 1 != 3 - 1, 1 != 2. The pair (2, 3) is a bad pair since 3 - 2 != 3 - 3, 1 != 0. There are a total of 5 bad pairs, so we return 5. Ex...
Can you solve this real interview question? Count Pairs Of Nodes - You are given an undirected graph defined by an integer n, the number of nodes, and a 2D integer array edges, the edges in the graph, where edges[i] = [ui, vi] indicates that there is an
Returnthe number of nice pairs of indices. Since that number can be too large, return itmodulo109+ 7. Example 1: Input:nums = [42,11,1,97]Output:2Explanation:The two pairs are: - (0,3) : 42 + rev(97) = 42 + 79 = 121, 97 + rev(42) = 97 + 24 = 121. ...
2448-count-number-of-bad-pairs 2461-amount-of-time-for-binary-tree-to-be-infected 2472-build-a-matrix-with-conditions 2473-max-sum-of-a-pair-with-equal-sum-of-digits 2488-divide-intervals-into-minimum-number-of-groups 2493-reverse-odd-levels-of-binary-tree 2494-sum-of-prefix-scores-of-...
这种题目,就要用二叉树, 代码写的又臭又长。。 struct Node { int value; int left; int right; int num; int pos; }tree[200005];classSolution{public: int hight; int lower; intfun(int root, int number, int h, int l, int pos){if(pos==-1)returntree[root].num; ...
新手村100题汇总:王几行xing:【Python-转码刷题】LeetCode 力扣新手村100题,及刷题顺序 1 审题 题目说明: 难度=easy; count number,计数; pairs,数对; difference,差; absolute difference,差值的绝对值; absolute difference K,差值的绝对值=K。 题目:Given an integer array nums and an integer k, return...
13 changes: 13 additions & 0 deletions 13 2176. Count Equal and Divisible Pairs in an Array Original file line numberDiff line numberDiff line change @@ -0,0 +1,13 @@ 2176. Count Equal and Divisible Pairs in an Arrayhttps://leetcode.com/problems/count-equal-and-divisible-pairs-in-...
pairs[i].length == 2 xi != yi 0 <= xi, yi <= n - 1 Each person is contained in exactly one pair. classSolution {publicintunhappyFriends(intn,int[][] preferences,int[][] pairs) {int[] map =newint[n];for(int[] pair: pairs){//Keep record of current matches.map[pair[0]]...
0-indexedinteger arraynumsof lengthnand an integerk, returnthenumber of pairs(i, j)such that: 0 <= i < j <= n - 1and nums[i] * nums[j]is divisible byk. Example 1: Input:nums = [1,2,3,4,5], k = 2Output:7Explanation:The 7 pairs of indices whose corresponding products are...
publiclongcountFairPairs(int[] nums,intlower,intupper){ Arrays.sort(nums); returnhelper(nums, upper) - helper(nums, lower -1); } privatelonghelper(int[] nums,inttarget){ longres=0; intleft=0; intright=nums.length -1; while(left < right) { ...