You are given two 0-indexed integer arrays nums1 and nums2 of sizes n and m, respectively.Consider calculating the following values:The number of indices i such that 0 <= i < n and nums1[i] occurs at least once in nums2.The number of indices i such that 0 <= i < m and nums2[i] occurs at least once in nums1.Return an integer array answer of size 2 containing the two values in the above order.
Question
You are given two 0-indexed integer arrays nums1 and nums2 of sizes n and m, respectively.Consider calculating the following values:The number of indices i such that 0 <= i < n and nums1[i] occurs at least once in nums2.The number of indices i such that 0 <= i < m and nums2[i] occurs at least once in nums1.Return an integer array answer of size 2 containing the two values in the above order.
Solution
To solve this problem, we need to count the number of indices where elements from one array occur in the other array.
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Initialize two variables, count1 and count2, to keep track of the counts for nums1 and nums2, respectively. Set both counts to 0.
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Iterate through each element in nums1:
- For each element, check if it exists in nums2. If it does, increment count1 by 1.
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Iterate through each element in nums2:
- For each element, check if it exists in nums1. If it does, increment count2 by 1.
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Create an integer array, answer, of size 2.
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Set answer[0] to count1, which represents the number of indices where nums1[i] occurs in nums2.
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Set answer[1] to count2, which represents the number of indices where nums2[i] occurs in nums1.
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Return the answer array.
Here is the step-by-step solution to the given problem.
Similar Questions
You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in nums1 and nums2 respectively.Merge nums1 and nums2 into a single array sorted in non-decreasing order.The final sorted array should not be returned by the function, but instead be stored inside the array nums1. To accommodate this, nums1 has a length of m + n, where the first m elements denote the elements that should be merged, and the last n elements are set to 0 and should be ignored. nums2 has a length of n. Example 1:Input: nums1 = [1,2,3,0,0,0], m = 3, nums2 = [2,5,6], n = 3Output: [1,2,2,3,5,6]Explanation: The arrays we are merging are [1,2,3] and [2,5,6].The result of the merge is [1,2,2,3,5,6] with the underlined elements coming from nums1.Example 2:Input: nums1 = [1], m = 1, nums2 = [], n = 0Output: [1]Explanation: The arrays we are merging are [1] and [].The result of the merge is [1].Example 3:Input: nums1 = [0], m = 0, nums2 = [1], n = 1Output: [1]Explanation: The arrays we are merging are [] and [1].The result of the merge is [1].Note that because m = 0, there are no elements in nums1. The 0 is only there to ensure the merge result can fit in nums1. Constraints:nums1.length == m + nnums2.length == n0 <= m, n <= 2001 <= m + n <= 200-109 <= nums1[i], nums2[j] <= 109 Follow up: Can you come up with an algorithm that runs in O(m + n) time?
You are given 2 integer arrays nums1 and nums2 of lengths n and m respectively. You are also given a positive integer k.A pair (i, j) is called good if nums1[i] is divisible by nums2[j] * k (0 <= i <= n - 1, 0 <= j <= m - 1).Return the total number of good pairs. Example 1:Input: nums1 = [1,3,4], nums2 = [1,3,4], k = 1Output: 5Explanation:The 5 good pairs are (0, 0), (1, 0), (1, 1), (2, 0), and (2, 2).Example 2:Input: nums1 = [1,2,4,12], nums2 = [2,4], k = 3Output: 2Explanation:The 2 good pairs are (3, 0) and (3, 1). Constraints:1 <= n, m <= 1051 <= nums1[i], nums2[j] <= 1061 <= k <= 103C++ 1class Solution {2public:3 long long numberOfPairs(vector<int>& nums1, vector<int>& nums2, int k) {4 5 }6};
You are given a 0-indexed integer array nums having length n, an integer indexDifference, and an integer valueDifference.Your task is to find two indices i and j, both in the range [0, n - 1], that satisfy the following conditions:abs(i - j) >= indexDifference, andabs(nums[i] - nums[j]) >= valueDifferenceReturn an integer array answer, where answer = [i, j] if there are two such indices, and answer = [-1, -1] otherwise. If there are multiple choices for the two indices, return any of them.Note: i and j may be equal. Example 1:Input: nums = [5,1,4,1], indexDifference = 2, valueDifference = 4Output: [0,3]Explanation: In this example, i = 0 and j = 3 can be selected.abs(0 - 3) >= 2 and abs(nums[0] - nums[3]) >= 4.Hence, a valid answer is [0,3].[3,0] is also a valid answer.Example 2:Input: nums = [2,1], indexDifference = 0, valueDifference = 0Output: [0,0]Explanation: In this example, i = 0 and j = 0 can be selected.abs(0 - 0) >= 0 and abs(nums[0] - nums[0]) >= 0.Hence, a valid answer is [0,0].Other valid answers are [0,1], [1,0], and [1,1].Example 3:Input: nums = [1,2,3], indexDifference = 2, valueDifference = 4Output: [-1,-1]Explanation: In this example, it can be shown that it is impossible to find two indices that satisfy both conditions.Hence, [-1,-1] is returned. Constraints:1 <= n == nums.length <= 1050 <= nums[i] <= 1090 <= indexDifference <= 1050 <= valueDifference <= 109
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
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