Find K Pairs with Smallest Sums
You are given two integer arrays nums1 and nums2 sorted in non-decreasing order and an integer k.
Define a pair (u, v) which consists of one element from the first array and one element from the second array.
Return the k pairs (u1, v1), (u2, v2), ..., (uk, vk) with the smallest sums.
Example 1
Input
nums1 = [1,7,11], nums2 = [2,4,6], k = 3Output
[[1,2],[1,4],[1,6]]The first 3 pairs are returned from the sequence: [1,2],[1,4],[1,6],[7,2],[7,4],[11,2],[7,6],[11,4],[11,6].
Example 2
Input
nums1 = [1,1,2], nums2 = [1,2,3], k = 2Output
[[1,1],[1,1]]The first 2 pairs are returned from the sequence: [1,1],[1,1],[1,2],[2,1],[1,2],[2,2],[1,3],[1,3],[2,3].
Constraints
- 1 <= nums1.length, nums2.length <= 10^5
- -10^9 <= nums1[i], nums2[i] <= 10^9
- nums1 and nums2 both are sorted in non-decreasing order.
- 1 <= k <= 10^4
- k <= nums1.length * nums2.length