[雜湊]PAT1050 String Subtraction
阿新 • • 發佈:2019-01-25
Given two strings S1 and S2, S = S1 - S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task is simply to calculate S1 - S2 for any given strings. However, it might not be that simple to do it fast.
Input Specification:
Each input file contains one test case. Each case consists of two lines which gives S1
Output Specification:
For each test case, print S1 - S2 in one line.
Sample Input:They are students. aeiouSample Output:
Thy r stdnts.