16,048 users solved
Author: thelshell

Description

Best Stuff - Cheap Stuff, Buy Buy Buy... Store Instance: source. The shop is open for business at .nc mercury.picoctf.net 10337

Hints

Always check edge cases when programming

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00. 前言

emmm，先要了解一下elf文件吧，先啃文档。。。等做题的时候再把理解的东西写出来。有趣，这好像跟elf可执行程序关系不大，我们直接来玩坏这个程序

01.解题过程

image.png

买-10个Quiet Quiches获得了100coins
在买flag即可

简单解码一下可以发现是十进制

picoCTF{b4d_brogrammer_3da34a8f}