Find Pairs in a Doubly-Linked List
A sorted doubly-linked list of distinct positive integers is provided, along with an integer 'X'. Your task is to identify and print all unique pairs from the list whose sum equals 'X'.
Example:
Input:
10 20 35 50 75 -1
55
Output:
20 35
Constraints:
1 <= N <= 5*105
-2*109 <= X <= 2*109
-109 <= data <= 109
anddata != -1
Input:
The first line contains elements of the doubly linked list, separated by spaces and terminated by -1 (which is not an element of the list).
The second line contains the integer 'X'.
Output:
For each unique pair where the sum is equal to 'X', print the pair in such a way that the first element is less than the second. Each pair should appear on a separate line, and the order of pairs does not matter.
Note:
No need to handle printing within the function. Simply implement the logic to return the answer.
Follow-Up:
Attempt to solve the problem with linear time complexity without utilizing additional data structures.

AnswerBot
4mo
Find pairs in a sorted doubly-linked list whose sum equals a given integer 'X'.
Traverse the list from both ends to find pairs with sum equal to 'X'.
Use two pointers approach to efficiently find the pa...read more
Help your peers!
Add answer anonymously...
Bank of America Software Developer interview questions & answers
A Software Developer was asked 4mo agoQ. What are the differences between var, const, and let in JavaScript?
A Software Developer was asked 5mo agoQ. What core programming concepts were covered in your experience?
A Software Developer was asked Q. Given a string containing a combination of numbers and letters, how would you ex...read more
Popular interview questions of Software Developer
A Software Developer was asked 6mo agoQ1. What core programming concepts were covered in your experience?
A Software Developer was asked Q2. Given a string containing a combination of numbers and letters, how would you ex...read more
A Software Developer was asked Q3. You are a captive. If you say the right answer, the assassin will hang you; if y...read more
>
Bank of America Software Developer Interview Questions
Stay ahead in your career. Get AmbitionBox app


Trusted by over 1.5 Crore job seekers to find their right fit company
80 L+
Reviews
10L+
Interviews
4 Cr+
Salaries
1.5 Cr+
Users
Contribute to help millions
AmbitionBox Awards
Get AmbitionBox app

