Codeforces Round 753 (Div. 3) ABCDE
跳转到->Codeforces Round #753 (Div. 3) A. Linear Keyboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a keyboard that consists of 2626 keys. The keys are arranged sequentially in one row in a certain order. Each key corresponds to a...