Mastery 23 & 25

Written on Nov, 23, 2015 by davidg2897

Mastery 23 – Creation and use of lists in Python Here’s WSQ10 in which I created and used a list. Mastery 25 – Creation and use of ranges in Python Here’s WSQ 14 in which is created and used a range in a for loop. You can algo assign it to a variable and use […]

Masteries 23 & 24

Written on Nov, 23, 2015 by hrglez

Creation and use of vectors in C++
Creation and use of arrays in C++

Lists

Written on Nov, 23, 2015 by Frida Diaz

A list is a sequence of values that are nested into one function. These elements can be strings, number, and even lists. You can have many types of elements within the same list, for example:

Colors = [ ‘red’, ‘blue’, ’yellow’ ]

Numbers = [ 1, 2, 3 ]

List = [ 4, [5, 6]]

Other = [ ‘red’, 2, [5, 6] ]

As you can see, for creating a list you need to establish the name on the list followed by an equal sign (which means ‘assignment’). After the equal sign you start naming the elements included in the list. These elements are nested inside square brackets [] and separated by commas. If the element being established is a string, it needs to be between quotation marks.

For printing the whole list you type the command print() and between the parenthesis you type the name of the list. For printing just one element of the list you type the command print() and between the parenthesis you type the name of the list followed by the number of the element between square brackets.

NOTE: The elements on a list are numbered starting from 0

For knowing how many elements a list contains, you can use the command len(), between the parenthesis you type the name of the list.

Also, you can change an element on a list by typing the name of the list followed by position of the element you want to change between square brackets. After that, you place the equal sign followed by the element you want to replace it with.

#Mastery23 – Creation and use of vectors in C++

Written on Oct, 30, 2015 by Ricardo Newton

This is #Mastery23 about creating and using vectors in C++. A vector in c++, is used to store different values in different storage compartments. It works almost the same as an array, the only difference is that the storage space can change. This is one of the differences with the arrays that storage spaces have to be declared.

Vectors take more memory space than arrays do. It is a list of values in which each of them are identified with a number. They can be made by any element and type.

These is how you declare a vector.

– You declare de type inside the angle brackets.

– You can declare the size of your vector in between parenthesis ( 6).

–

Vectors can be represented in the same way as arrays, like in a table.

– The count of vectors starts in 0.

Now you have located your values inside vectors, how can you access them? It is using the [ ]. You can give some space a value like this:

count[4]= 60;

The best part of using them is that its size can be modified.

– The copy constructor takes one vector and copies it in the same size.

– You can involve functions with a vector, like size( ). This function gives the size of a vector.

Vectors can also be used to create random numbers. Computers are designed to always return back any result with the same process, this is a problem when you are looking for the computer to show up a random number. C++ has a function called random that does all this process for you.

It is important to learn how to make use of the different facilities c++ have for you. You just need to be very careful when using them.

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WATCH MY VIDEO https://youtu.be/XRxkoby_RUE

Here are masteries 23 and 25, about strings and vectors. Maybe…

Written on Oct, 30, 2015 by lowercase

Here are masteries 23 and 25, about strings and vectors. Maybe the most complicated for me since I just learned how to use vectors. Enjoy: https://www.youtube.com/watch?v=llPuSsueAfY

Mastery 23

Written on Oct, 30, 2015 by Andrea Ac

#Masteries23,24,25

Written on Oct, 28, 2015 by giorgiodc

Creation and use of vectors in C++
Creation and use of arrays in C++
Creation and use of strings in C++

Mastery Number 23

Written on Oct, 28, 2015 by chozacastro

Long video though, i accidently cut the video and had to edit it since i added more code, sorry if it seems slow.

Masteries 23 y 24: creation and use of vectors and arrays

Written on Oct, 28, 2015 by eduardomacielm

Hey there! Here is my video for #Mastery23 and #Mastery24:

Mastery23

Written on Oct, 28, 2015 by Octavio Rojas

Vectors and stuff. Here is the usual definition of vectors, provided by our friends of Cplusplus.com: “Vectors are sequence containers representing arrays that can change in size. Just like arrays, vectors use contiguous storage locations for their elements, which means that their elements can also be accessed using offsets on regular pointers to its elements, […]

Tag Archives: #Mastery23