The two standard algorithms I will be talking about is count occurrences and linear search.
Count occurrences is a type of algorithm in which a number that is defined by the user will be run through a list that is either also defined by the user or hard coded into the program. The amount of times the number is found will be relayed back to the user once all of the list has been searched.
Linear search also gets a number from the user and runs it through a list(defined by user or hard coded) and the program will look through the code and find where it is. Once done the program will tell the user what position in the list it is.