WSQ09 :)

So, hello againnnn, this is the problem for this week:

Create a function that receives as parameter the name of a file (this would be a string value like data.txt) and your function counts the number of lines and the number of characters in the file which it returns as a single value (but with two values). You will want to look at how to create/define and return a struct value from a function and how to open and read text files line by line.

So, how do I start???

First of all I include to new libraries :

1. fstream: To be able to read a file.
2. String: To use my get line function.

Then I declare my to variables «palabras and lineas» with a value of cero, then I make that my program will make a text file called texto.txt and then I put my if stream because we are going to put things on the program in other words «if = in, ofs= out».

Then I make to open my file with open and the name of my file, and what would happened if it fail and to do that while is open and its going to add one value to lineas and palabras.

I really don’t know how to explain it right because if you don’t know so much things you will never know what I am doing. So read your textbook and search information on internet about this problem, because it was a hard one.

See you laterrrrr.

Image from: https://clipartfest.com/categories/view/382647a840319bed4aa74f8b873e6b3c85a45d91/open-book-with-words-clipart.html

Well… :) not to easy

This was the problem:

Create a program that asks the user for 10 numbers  (floating point). Store those numbers in a list. Show to the user the total, average and standard deviation of those numbers.

This was a hard one, in this problem you need to convine everything you know about programming till now… so, not to easy.

The first thing that I do was doing an array of 10 digits and a cout to the user can type his 10 numbers, then I add a counter to now how many times I am going to put a number, and I make a operation that does that the numbers going to add each other, then I put that the average is equal to the sum divided the times I put a number, that was all in the first part.

The second part was to make a function that gives the standard deviation of the numbers I put (image 2), so I search on internet what to do to make that operation and I do the same as the average but a little different, it was a kind of pitágoras.

Quiz 9!!!!

 

This quiz was easy af!!! ….. well not at all 🙂

This was the quiz:

Write a function that receives four parameters: x1, y1, x2, y2 which are all floating point values.

The function is called distance and returns (float) the distance between x1,y1 and x2,y2 on the cartesian coordinate plane.

So, to solve this quiz you need to think hard, very hard, very very very hard!!!!!!, just kidding, you only have to use logic :p

Lets suppose that you have to points in the space x and y but these seams very familiar isn’t it? I think they are going to form a triangle and the space is the hypotenuse, lets see it like this 

and then everything is solve, yo just only have to write your program like every time and everything is solve Ta Daaaa. 🙂

See you laterrrrrr.

FactorialCalculator???

Well, I do no what is a factorial…. 😦

So in order to solve this problem I search on the most trusthly page on internet… Wikipedia, then I notice that a factorial is :

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,

5!=5×4×3×2×1=120. 

So the problem was this:

Create a program that asks the user for a non-negative integer (let’s call that number n) and display for them the value of n! (n factorial).

After showing them the answer, ask them if they would like to try another number (with a simple y/n response) and either ask again (for y) or quit the program and wish them a nice day (if they answered n).

And then to solve this problem I put my normal main and later I do my function that says that is going to start in 1 because cero isn’t important, so while c is less than 1 is going to sum 1 till reach that number that the user input, and then is going to return me the new value that is going to be a or the result :).

 

Image from: http://weknowmemes.com/2012/07/fuck-you-science/http://giphy.com/gifs/math-zach-galifianakis-the-hangover-5yLgoczEvFoE5LyoiZO

Functions??? Againnnnn???

Wellllll…. Again pffff.

The problem was this:

You will go back and do WSQ01 – Fun with Numbers again.

But this time, write a function for each calculation. Each function should define two parameters (in this example of type int) and return the correct value as an integer as well.

You main program needs to ask the user for the input and then call each function to calculate the answer for each of the parts.

So I use my older program and I start work in there, the only different thing that I do is that in this program I am going to use functions.

So I do thissssss, I give name to my function, then I put the values as int that are going to be on my functions, then I give value to my function and then return my function and the other functions was easy tooooo, the only thing that I do was change the operation of my function for what I suppose to need. And I do everything in one program why not?

Like this:

Image from: http://mathematicaled107.blogspot.mx

 

Quiz 4

For this quiz we have to do this:

For this quiz I want you to (in class) create a program with two functions:

• int minimumThree(int x, int y, int z){ }  // returns the value that is smallest of x, y and z
• int sumSquares(int x, int y, int z) {}  // returns the value of the sum of squares of x, y, z

You should make a main routine that asks the user for three numbers and then calls your functions to which should *RETURN* the value and you print in the main program.

So I started writing my program normally, declaring my variables, naming my functions and to make the user to write the three numbers.

Then I make what my functions would do, that says in the first function that I am going to multiplied my variables with the function «pow» and in a parenthesis my variable «,» and the number I want to multiplied my variable, in this case 2 for square and the sum the operations.

And on my second function I put conditions with if and else to make the program know what number is bigger than the other and finally printed on the result.

Image from: http://www.quizfactor.com/quiz/general-knowledge/5

#Quiz04

Sum of Numbers

This was the problem:

Write a program that asks for a range of integers and then prints the sum of the numbers in that range (inclusive).

You can use a formula to calculate this of course but what we want you to do here is practice using a loop to do repetitive work.

For example, the sum from 6 to 10 would be 0 + 6 + 7 + 8 + 9 + 10.

I start declaring normally my variables as integers and one different that I give him a value «suma= 0» later I will explain that, and one variable as character «con».

I start my main asking the user t put the ranges of the sum and then I put and if in case if the range one was lower than the range two.

Then I put a loop with a loop while that says that the result is going to be equal to the result plus one while range one be lower than range two and every time that the operations happens range one is going to be one number more that it was until be the same as range two, and finally put the result of the sum.

#WSQ04

Image from: http://www.clipartbro.com/categories/greek-symbol-for-sum-clipart

Pick a Number

This was the problem:

Write a program that picks a random integer in the range of 1 to 100.

There are different ways to make that happen, you choose which one works best for you.

It then prompts the user for a guess of the value, with hints of ’too high’ or ’too low’ from the program.

I start adding the libraries that I search on internet «stdlib.h» and «time.h» to make the program to generate one random number, then I declare my variables as local variables because there are going to change and I start coding the thing that I need to make the program give me a random number, that says that is going to generate one random number between 1 and 100.

Then I make a loop in case if I don’t guess the random number that the program makes, and I put if the number I put randomly in order to guess the other number was less that it was the program is going to say me that the number insert was to low, and one in case it would be to high.

And if I guess it the program is going to say me congratulations :).

#WSQ03

Temperature

This was the problem:

Write a program that will prompt the user for a temperature in Fahrenheit and then convert it to Celsius. You may recall that the formula is C = 5 ∗ (F − 32)/9.

Modify the program to state whether or not water would boil at the temperature given.

So I start coding normally «Declaring variables, including libraries, and in the main put the text that I will need in the problem».

After asking the user the Fahrenheit degrees, I give value to the celsius degrees with this formula: C = 5 ∗ (F − 32)/9, and that was all in order to convert Fahrenheit to celsius, then I put my condition  in case if the result is bigger than 100. I start my condition with an «If» and next to it the conditions and I put what would happen, and then I put and else in case that this condition were not true.

 

#WSQ02

Image from: http://climateresources.net

Codes

Here I is what I do with the first 5 programs that Ken´s give us.

Here are the problems:

• The sum of the two numbers.
• The difference of the two numbers.
• The product of the two numbers.
• The integer based division of the two numbers (so no decimal point). First divided by second.
• The remainder of integer division of the two numbers.

In order to solve this programs I search on the internet what operations or what commands I was needed to us to solve them, so I found this page: http://www.cplusplus.com/reference/iostream/

Were it says all the thing and commands that I can use with the library <iostream>, so I start coding.

The first thing that I did was declare my variables as integers «int» followed by a coma every single variable, and in all the cases I only use 3 variables «n1, n2, n3», n1 as the first number to print on the terminal, n2 as the second number to print, and n3 as the result of the operation. So I start texting my first order that was to print the first number that I give him so I put with a «cout» the order and with «cin» to input the number. And finally to give a value to n3 I put «n3 = n1 (the operation I wanted to made +, -, *, /, %) n2», and print the result on the screen.

Here are my programs:

Sum:

Difference:

Product:

Division:

Residue:

And 1 in all: