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APCSP20: AAP-2.N.1

CodeHS Lessons

The exam reference sheet provides basic operations on lists include: accessing an element by index; aList[i] accesses the element of aList at index i. The first element of aList is at index 1 and accessed using the notation alist[1]; assigning a value of an element of a list to a variable; x ← aList [i] - assigns the value of aList[i] to the variable x; assigning a value to an element of a list; aList[i] ← x - assigns the value of x to aList[i]. aList[i] ← aList[j] - assigns the value of aList[j] to aList[i]. inserting elements at a given index; INSERT(aList, i, value) - any values in aList at indices greater than or equal to i are shifted one position to the right. The length of the list is increased by 1, and value is placed at index i in aList. adding elements to the end of the list (append); APPEND(aList, value) - the length of aList is increased by 1, and value is placed at the end of the aList. removing elements; and REMOVE(aList, i) - Removes the item at index i in aList and shifts to the left any values at indices greater than i. The length of aList is decreased by 1. determining the length of a list. LENGTH(aList) – Evaluates to the number of elements currently in aList.

Standard
7.1 Intro to Lists/Arrays
7.7 Removing an Element From an Array
Standard
7.2 Lists
7.4 List Methods
Standard
7.1 Intro to Lists/Arrays
7.7 Removing an Element From an Array
Standard
7.1 Intro to Lists/Arrays
7.7 Removing an Element From an Array
Standard
6.1 Intro to Lists/Arrays
6.7 Removing an Element From an Array
Standard
6.1 Intro to Lists/Arrays
6.7 Removing an Element From an Array
Standard
4.1 Intro to Lists/Arrays
4.7 Removing an Element From an Array
Standard
5.2 Lists
5.4 List Methods
Standard
6.2 Lists
6.4 List Methods
Standard
4.2 Lists
4.4 List Methods
Standard
4.2 Lists
4.4 List Methods
Standard
6.1 Intro to Arrays and Accessing an Element in an Array
6.3 Looping Through Arrays