[Solution] Number of Pairs Satisfying Inequality solution leetcode

Number of Pairs Satisfying Inequality solution leetcode – You are given two 0-indexed integer arrays nums1 and nums2, each of size n, and an integer diff. Find the number of pairs (i, j) such that:

  • 0 <= i < j <= n - 1 and
  • nums1[i] - nums1[j] <= nums2[i] - nums2[j] + diff.

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[Solution] Number of Pairs Satisfying Inequality solution leetcode

Return the number of pairs that satisfy the conditions.

 

Example 1:

Input: nums1 = [3,2,5], nums2 = [2,2,1], diff = 1
Output: 3
Explanation:
There are 3 pairs that satisfy the conditions:
1. i = 0, j = 1: 3 - 2 <= 2 - 2 + 1. Since i < j and 1 <= 1, this pair satisfies the conditions.
2. i = 0, j = 2: 3 - 5 <= 2 - 1 + 1. Since i < j and -2 <= 2, this pair satisfies the conditions.
3. i = 1, j = 2: 2 - 5 <= 2 - 1 + 1. Since i < j and -3 <= 2, this pair satisfies the conditions.
Therefore, we return 3.

[Solution] Number of Pairs Satisfying Inequality solution leetcode

Input: nums1 = [3,-1], nums2 = [-2,2], diff = -1
Output: 0
Explanation:
Since there does not exist any pair that satisfies the conditions, we return 0.

 

[Solution] Number of Pairs Satisfying Inequality solution leetcode

  • n == nums1.length == nums2.length
  • 2 <= n <= 105
  • -104 <= nums1[i], nums2[i] <= 104
  • -104 <= diff <= 104

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