1. Found that it is a jar file, I must think of the tool of disassembling gdui, and it will not run. It may be a problem with my computer, and I will directly decompile it.
I also found the flag, and the corresponding algorithm, directly pull it out, run it locally, and get the flag
II.java code
XCTF Guess-the-Number
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Origin blog.csdn.net/YenKoc/article/details/105036624
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