My notebook

2. Base64 encoding

Source: http://www.ruanyifeng.com/blog/2008/06/base64.html

3. EOF

int the X-;
 the while (cin >> the X-), the while (scanf ( " % d " , & the X-)) how to end the input?
windows keyboard input Ctrl + Z; (each input value, recall wrap !!!)

 4.  geospatial distance calculation optimization

5. c ++ reads one line of input

string s;
getline(cin, s);

 

Reproduced in: https: //www.cnblogs.com/gattaca/p/4411826.html