A. Perfect PointsPerfect lines are the lines y=mx+c such that m and c are positive integers. Perfect points are the p...

B. String Is Not That EasyLet’s consider a string S which is obtained by concatenating the nonnegative integers from 0 to 102...

C. XOR PartitionNeo has a hidden array A of n integers where 0 ≤ Ai ≤ 109 is satisfied for each i from 1 to n . You ...

D. Permutations and DivisorsLet P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o...

E. Playing On A Directed GraphYou are given a directed graph consisting of n vertices and m edges (each edge is directed, so it ca...

F. AntMan And The PolygonAntMan before escaping from the quantum realm thought about roaming around the realm. And much to h...

G. Enormous ProductYou are given two integers l and r. You need to find the value of As the value of this equation ma...

H. Subset ANDYou are given an array A of n integers and an integer k. You need to find if there is any nonempty ...

I. Distinct PermutationsYou are given two binary strings A and B. Recall that binary string is a nonempty sequence of chara...

J. The SelectionSUST has n departments numbered from 1 to n where every pair of distinct departments is connected by...

K. Mr Makor And His FriendsMr Makor has a set S of n integers. He calls a sequence of length k special if every element of the ...

L. Expected OddnessAlita found a string of n characters where each character of the string is either ‘0’ or ‘1’. The Od...
