# Problems from Battle of Brains 2023, University of Dhaka

These problems are from a contest organized by CSEDU Informatics Club, University of Dhaka on October 30, 2023 at 7:20 AM UTC See details...

 A. All In One GridRyana, Fardin, and Bithi are best friends. One day, they were playing with dominos and a grid. Ryana... Moderate 33/37/43 B. NewbieBoba has opened a toy-manufacturing company that has n workers, where exactly m workers are newbies ... Moderate 24/25/36 C. Crash CourseSawda and Alayna have received a remote-controlled toy robot as a gift from their beloved uncle, Mri... Moderate 6/12/28 D. Cracking the CodeA group of cp enthusiastic students from University of Dhaka were on a fun journey. They brought alo... Moderate 14/16/45 E. Just Another String ProblemA string is called good if the number of occurrence of every character in it is even. For example, “... Moderate 8/10/30 F. Festival of SticksIn the vibrant village of Stickeville, an annual tradition known as the Festival of Sticks is celebr... G. Suffix CuttingYou are given an array a consisting of n integers a1​,a2​,....,an​. The array is called beautiful if... Easy 7/9/33 H. Schrödinger's BrightnessAntman is in the quantum realm. He has n orbits which are concentric and circular. These are called ... Moderate 1/2/2 I. Invertible ConstructionYou are given two integers n and k. We define an operation on a r×c binary matrix as follows: Choos... J. FarewellAlice has found an array A containing n non-negative integers, where the i-th element is named Ai​. ...

### Practice Contest

Practice contests allow you to re-run contests and experience them as close as possible to the original run.