# Day 1 Highlights for 90-Day High-Frequency Trading Readiness

* Learnt about Binary Search Lower Bound code and Upper Bound From Strivers Youtube Playlist
    
* Implemented it on the Naukri Code 360 Platform
    
* used lower\_bound() function and upper\_bound()
    
    ```cpp
    lower_bound(arr.begin(),arr.end(),target) // O(log n) Time Complexity STL function
    ```
    
* went to a wedding party but was satisfied I completed Leetcode 34: [https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/](https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/description/)
    
* But I have to optimize it further
    

## I will improve my writing here and keep it in minimum as I have given up

1. Instagram
    
2. Snapchat
    
3. Girls ( I am 23 and have no girlfriend )
    
4. Porn ( Yes, I was an addict, but I am improving Day-by-Day ) \[It’s part of a mentality change\]
    

# I have become religious and follow the principles of the Bhagavad Gita!

Bye and thanks for Reading!