题解 | #MP3光标位置#
MP3光标位置
https://www.nowcoder.com/practice/eaf5b886bd6645dd9cfb5406f3753e15?tpId=37&tqId=21287&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3FtpId%3D37&difficulty=3&judgeStatus=undefined&tags=&title=
n = int(input()) s = input() idx = 0 song = 0 for ch in s: if ch == 'U': if idx > 0 or idx == 0 and song == 0: idx = (idx + 3) % 4 song = (song + n - 1) % n else: if idx < 3 or idx == 3 and song == n-1: idx = (idx + 1) % 4 song = (song + 1) % n if n <= 4: for i in range(n): print(i+1, end=' ') print() else: for i in range(4): print(1 + song - idx + i, end=' ') print() print(song + 1)