Suppose we have two numbers h and w. The height and width of a table. The table is divided into h × w cells. Into each cell of the table, we can either put a plate or keep it empty. As each guest has to be seated next to their ... Read More

Suppose we have a binary string S with n bits. Let an operation MEX of a binary string be the smallest digit among 0, 1, or 2 that does not occur in the string. For example, MEX(001011) is 2, because 0 and 1 occur in the string at least once, ... Read More

Suppose we have an array A with n elements and another value k. We have n barrels lined up in a row, they are numbered from left to right from one. Initially, the i-th barrel contains A[i] liters of water. We can pour water from one barrel to another. In ... Read More

Suppose we have an array A with n elements and another value k. We want to perform k following operations. One operation is like −Let d is the maximum value of the arrayFor every index i from 1 to n, replace A[i] with d - A[i]We have to find the ... Read More

Suppose we have two numbers a and b. In a coding challenge, there are 4 slots for participants in a team. There are a number of programmers and b number of mathematicians. We have to count how many teams can be formed, if: each team must have at lease one ... Read More

Suppose we have a string S with n characters and two values l and r. Amal has written song and shared it to Bimal. The song is a string consisting of lowercase English letters. Bimal made up a question about this song. The question is about a subsegment of the ... Read More

Suppose we have two binary strings S and T of size n. Consider there is a chessboard of size n by n.Currently, there are some pawns in the n-th row. There are also enemy pawns in the 1-st row. On one move, we can move one of our pawns. A ... Read More

Suppose we have a string S with n elements. Amal's song consists of n notes, which we will treat as positive integers. The diversity of a song is the number of different notes it contains. We want to make it more diverse. We cannot arbitrarily change the song. Instead, for ... Read More

Suppose we have an array A with n elements. There are n students in a university, n is even. The i-th student has programming skill equal to A[i]. The team leader wants to form n/2 teams. Each team should consist of exactly two students, and each student should belong to ... Read More

Suppose we have a number n. We have to count the number of integers x, in range 1 to n such that, that x is a square of a positive integer number or a cube of a positive integer number (or both a square and a cube simultaneously).Problem CategoryVarious problems ... Read More