# Problems from AUST CSE Carnival 1.0 Programming Contest

These problems are from a contest organized by Ahsanullah University of Science and Technology CSE Society on January 19, 2023 at 7:45 AM UTC See details...

 A. Primeland's CurrencyOne day Edge was roaming at Primeland. Primeland is a beautiful country where every banknote is a pr... Moderate 18/42/143 B. Easy Substring ProblemSohom has two strings s and t consisting of lowercase Latin letters. You have to find a permutation ... Moderate 33/53/204 C. RedXXXXXXXXOne day while sitting on AUST RedX, Alam was thinking about his future. Suddenly, you came and sat b... Moderate 17/22/59 D. Carnival Is Here!Welcome to AUST CSE Carnival 1.0! The carnival is organized by AUST CSE Society and powered by Integ... Moderate 68/68/79 E. Easy SwapYou are given two binary trees b1 and b2, both having the same number of nodes. Nodes are numbered f... Moderate 22/30/51 F. Long MultiplicationYou are given an integer n. You have to perform m operations on it. In each operation, you have to m... Moderate 7/10/22 G. Another Divisibility ProblemGiven an integer a containing n digits and another integer b, find the number of integers k where bo... Moderate 5/26/133 H. Magic Exists!Ethene has a pet named “Khatash”. Weird name, right? Ethene loves and adores her pet so much. Khatas... Moderate 47/66/241 I. Guess the PointThis is an interactive problem 😎 There is a point p in the 2D cartesian plane. You just have to gues... Moderate 5/6/34 J. Maximum ORConsider this bitwise OR operation between 2 integer numbers, AORB=C You are given A and C. Find the... Easy 52/56/94 K. Friends GroupThere is an array a with n integers. Recently array indices are getting friends with each other. Two... Moderate 8/11/32