@manishrai088
Your editing is very simple and very easy to understand...watched all of your vids all are Great. Keep it up man.
@maudjito
Why not loop through the array once and return the missing number? It's O(n) but on most scenarios it won't need to go through the whole array.
@theohdear9293
In the two_sum example you still have to look through your num_map (which only gets bigger and bigger) every time. Is the only difference here that checking if an item exits in a hashmap is faster than checking if an item exists in an array?
@Splashifed
heres your 600th sub
@lucvaillancourt9923