Unique Relief
Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...
Help Chokro
Pias and Chokro are good friends. Pias's birthday is coming soon. So, Chokro wants to gift Pias an a...
Oishi Teacher and Her Naughty Class
Oishi teacher has returned to her class after the tiffin break. She noticed that some students who r...
Is Bita Happy?
Bita has learned bitwise-operations recently. She is doing some experiments with these operations no...
Poltu and Digit Product
You are given two integer L and R. You have to find the summation of digit product of all number fro...
Divisible LCM
You have a sequence a1​, a2​, a3​, …, an​ of n integers and q queries. In each query, you are given ...
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