{"version":"1.0","author_url":"https://blog.hatena.ne.jp/hamayanhamayan/","blog_title":"\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093","categories":["Security"],"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hamayanhamayan/20200425/20200425191841.png","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":"UMDCTF 2020 Web Writeups","url":"https://blog.hamayanhamayan.com/entry/2020/04/25/192323","type":"rich","height":"190","author_name":"hamayanhamayan","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2020%2F04%2F25%2F192323\" title=\"UMDCTF 2020 Web Writeups - \u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"CTFtime.org / UMDCTF 2020 \u89e3\u3051\u305f\u554f\u984c\u3068\u3001\u89e3\u8aac\u304c\u3042\u3063\u305f\u554f\u984c\u306b\u3064\u3044\u3066\u66f8\u3044\u3066\u3044\u308b\u3002 [\u89e3\u8aac\u306a\u3057] Wat ... In Calculus 5, I learned that there was a new number invented by subtracting two things. This number is on my next exam, and I need to figure out what it is. If I don't, I fail the exam. Can you help figure it out? http://159.89.228.\u2026","published":"2020-04-25 19:23:23","blog_url":"https://blog.hamayanhamayan.com/","width":"100%"}