InterviewBit Problems   Pair With Given Difference : Unsolved

About the Pair With Given Difference : Unsolved category (1)
Third solution is wrong (2)
Elegant soln C++ (2)
Why this code is not giving the required answer (2)
Can someone help me in reducing time complecity of my code (2)
Not Given assumption that elements are unique in th array (1)
Expected output is for given Testcase (2)
Wrong test case | Expected value incorrect (8)
Why this code gives wrong output for test case having B=369 (1)
Pathological test case for Submit (2)
Can anybody tell whats wrong with this code (1)
It should be under Hashing Topic (2)
Please check the code and do give me ans (2)
Topic MisMatch and Duplicate (1)