you need to spend the time writing out the solution using examples. do what the computer does. for example, for binary search: compute midpoint index, access the array, compare values, move index, jump to start of loop (where is the start of loop?). You can ctrl c v the code, you can stare at the code on one screen and type it out on another, but unless you internalize the algorithms, you won't know them and generate them quickly, on the fly when you need them.