Hello Everyone,

1. I found this C++ STL (standard template library) sheet online. Useful for someone starting out. Contains mostly everything about the basic data structures and how to implement them.
   Attaching link to pdf, Link

2. Also attaching a small document I made, contains frequently used functions and tricks like finding MEX of array, nCr(combination), GCD, LCM, Seive, binary exponentiation for finding power etc.
   Attaching link to document, Link

Preview,


PS: Please suggest if you have more such functions or notice any errors and I'll fix them right away.
UPD: Added some questions in the document to practice.
UPD2: A list of most commonly asked DSA algorithms in interviews — Link