A. Palindromic SubstringMr. J has recently learnt a new data structure called Palindromic Tree. Well, he didn’t exactly lear... 
B. Ray's Xor queryRay LaMontagne was feeling empty. That’s when found the secret ingrediend to keep himself busy! Solv... 
C. Sum of two composite numberDamien rice is very sad now. So he stopped singing. Now he is very interested in number theory. He t... 
D. Find the numberHashu banu is very peculiar about what enters in her temple of thought. So currently she is thinking... 
E. Find The Hidden SequenceThere exists a NxN board with each cell containing an integer.The rows are numbered 1 to N from top ...

F. BLACKPINK in your area!Oh wait til’ I do what I do Hit you with that ddudu ddudu du Aye aye Hit you with that ddudu ddu...

G. What happens to the heartLeonard Cohen was getting older. Strange desires can come to mind of an older person. Cohen also sho... 
H. Find the lcmGiven two integer a, b. Find their lcm. In arithmetic and number theory, the least common multiple,... 