Day 181 Of Doing Codeforces Everyday Until I Reach Expert

My contacts :
- Codeforces : codeforces.com...
- Linkedin : / vinhluonggg
- Github : github.com/vin...
Current Streak : 181
How to approach Codeforces for beginners : docs.google.co...
The documents were written by : / @phcuber .
Pls go to his YTB channel and support him !!!