Lexicographical Smallest String
There is a string $s$ of length $n$ containing lowercase letters and an integer $k$. Among the lette...
Anina’s Birthday Gift
Anina is a girl who is very much interested in mathematics. She likes to solve Geometry and Counting...
One Ball Many Chocolates
Alice, Bob and Charlie, team ABC have come to the venue of world finals to be inspired by the world ...
Yet Another Xinversion
The problem statement is simple. You are given a rooted tree (1 is the root) and every node has a co...
Sofdor Ali's Magical Blackboard!
Sofdor Ali found interest in mathematics very early in his life. And now, he wants to spread this in...
Arya’s Counting
Little Arya has learnt to count the highest and the lowest number recently. She can easily find out ...
Arithmetic Sequence (Easy)
Arithmetic Sequence is a sequence of numbers where the difference between two consecutive numbers ar...
Alayna's Adventure Journey
Alayna recently went on her first adventure journey to Dumbulla Safari Park. She enjoyed the bumpy r...
Alayna and Vowels
Alayna loves playing. Every night before going to sleep, she plays different games with Baba. Now Al...
Life of Decimals
Given any circle, if you divide the circumference of that circle with its diameter, you would always...
Geometry Forever
Fear no more, this is a problem of geometry! When Moyna was little, he had a math teacher named Shuk...
CGPA, the Golden Egg!
Jenith is a student of CSE of Metropolitan University (MU). Recently her fifth term’s result has bee...
I Did Not Do the Assignment
Professor Petr is very angry over some of his students now-a-days for not doing assignment. He wants...
Jontrona!
Isfan vai is on high demand nowadays. You know why, right? However, his best friend is somewhat disa...
Let's Permute The String
Mr. Alex is one of the best programmer in your university. He is very interested in string. So, Mr. ...
Equal Distribution
Subhashis and Bipro participated in many onsite programming contests during their varsity life. From...
Toph uses cookies. By continuing you agree to our Cookie Policy.