Category Archives: scala

Given a squared sized grid of size in which each cell has a lowercase letter. Denote the character in the the row and in the th column as G[i][j]. You can perform one operation as many times as you like: Swap two column adjacent characters in the same row G[i][j]… Read more »

Jack and Daniel are friends. They want to encrypt their conversation so that they can save themselves from interception by a detective agency. So they invent a new cipher. Every message is encoded to its binary representation B of length N. Then it is written down K times, shifted by… Read more »