现在回头看来,当时写这个页面的自己到底在发什么病(((
方法一
令(其中 \(i\) 为虚数单位) $$ a = 20,000 \times \int_{-1}^{1}(sin^9x + sin^32x+e^{2\pi i})\cdot \sqrt{1 - x^2} dx $$ 令 $$ b = \lfloor a \rfloor \mod 10 + 100 $$
找到 \(b\) 所对应的 ASCII 字符,在后方添加上 @rikki.moe
即为我的邮箱地址
方法二
请使用 MATLAB 或其他类似工具计算:
M = [
0.8252 -1.5771 -0.2857 1.0187 0.3075 -0.1303 1.2607 -0.2097 -0.1461 -1.0642 -1.2507
1.3790 0.5080 -0.8314 -0.1332 -1.2571 0.1837 0.6601 0.6252 -0.5320 1.6035 -0.9480
-1.0582 0.2820 -0.9792 -0.7145 -0.8655 -0.4762 -0.0679 0.1832 1.6821 1.2347 -0.7411
-0.4686 0.0335 -1.1564 1.3514 -0.1765 0.8620 -0.1952 -1.0298 -0.8757 -0.2296 -0.5078
-0.2725 -1.3337 -0.5336 -0.2248 0.7914 -1.3617 -0.2176 0.9492 -0.4838 -1.5062 -0.3206
1.0984 1.1275 -2.0026 -0.5890 -1.3320 0.4550 -0.3031 0.3071 -0.7120 -0.4446 0.0125
-0.2779 0.3502 0.9642 -0.2938 -2.3299 -0.8487 0.0230 0.1352 -1.1742 -0.1559 -3.0292
0.7015 -0.2991 0.5201 -0.8479 -1.4491 -0.3349 0.0513 0.5152 -0.1922 0.2761 -0.4570
-2.0518 0.0229 -0.0200 -1.1201 0.3335 0.5528 0.8261 0.2614 -0.2741 -0.2612 1.2424
-0.3538 -0.2620 -0.0348 2.5260 0.3914 1.0391 1.5270 -0.9415 1.5301 0.4434 -1.0667
-0.8236 -1.7502 -0.7982 1.6555 0.4517 -1.1176 0.4669 -0.1623 -0.2490 0.3919 0.9337
];
v = [-59.5409 -56.9691 -52.0390 35.8095 -67.1241 66.0007 8.4592 102.0776 9.2136 -27.2173 -20.2390];
email = round(v * M');
disp("Email: " + char(email));
方法三
请使用 Python3 运行:
for i in range(ord('a'), ord('z') + 1):
email = chr(i) + '@rikki.moe'
email_md5 = hashlib.md5(email.encode())
if email_md5.hexdigest() == '90d51fee2cc0ef1339d734da6b561893':
print('Email:', email)