Question no 01: 115 Marks Given two linked list of size N1 and N2 respectively of distinct elements, your task is to complete the function countPairs(), which returns the count of all pairs from both lists whose sum is cqual to the given value X. Note: The 2 numbers of a pair should be parts of different lists Input: LI = 1 -> 2-3->4->5->6 1211-12-13 IX=15 Output: 3 Explanation: There are 3 pairs that add up to 15: (4.11).(3.12) and (2.13) Input: L1 = 7-> 5-> I->3 L23-5->2-> X = 10 Output: 2 Explanation: There are 2 pairs that add up to 10: (7,3) and (5.5)