给定一个字符串,我们的任务是将字符串切成两种方式。一个是顺时针方向,另一个是逆时针方向。
1.向左(或逆时针)旋转给定的字符串d个元素(其中d <= n)。
2.右(或顺时针)旋转给定的字符串d个元素(其中d <= n)。
Input: string = "pythonprogram" d = 2 Output: Left Rotation: thonprogrampy Right Rotation: ampythonprogr
Step 1: Enter string. Step 2: Separate string in two parts first & second, for Left rotation Lfirst = str[0 : d] and Lsecond = str[d :]. For Right rotation Rfirst = str[0 : len(str)-d] and Rsecond = str[len(str)-d : ]. Step 3: Now concatenate these two parts second + first accordingly.
def rotate(input,d): # Slice string in two parts for left and right Lfirst = input[0 : d] Lsecond = input[d :] Rfirst = input[0 : len(input)-d] Rsecond = input[len(input)-d : ] print ("Left Rotation : ", (Lsecond + Lfirst) ) print ("Right Rotation : ", (Rsecond + Rfirst) ) # Driver program if __name__ == "__main__": str = input("Enter String ::>") d=2 rotate(str,d)
输出结果
Enter String ::> pythonprogram Left Rotation: thonprogrampy Right Rotation: ampythonprogr