--Originally published at PZ

 

Ok, for me this was very difficult because I thought it would be much easier than that, I though that it was going to be very similar to a quiz that we did  where we had to find the char o, so I used that quiz as a base.

But then I realize that I will need to find  something that traduce the text from BanNana or baNNAna to banana so I found this blogs.

http://www.cplusplus.com/reference/cctype/tolower/

In the video the only difference is that he uses toupper.

Then I was stuck because I did not know what to do next to find the word banana, but then I find Fabrizzio Cortez blog who is a mechatronic engineer that did a very good job and uplouded high quality reviews. In the video I noticed that I must use .find which help us to find the word that we want, and also break to end the infinite loops.

In my code I wrote some notes: https://www.dropbox.com/s/be47iyu197epf64/wsq11.cpp?dl=0

--Originally published at PZ

This week assignment was much more easy than the wsq 8, but I think that this was more interesting and mean a very big step bacause now Im working with a text file that is not in the .cpp file.

First and the most important was to learn de library fstream that is required to read a file of text, I watched this video that help me a lot https://www.youtube.com/watch?v=xZh0oRKIPCw

After that I searche on how to count characters and lines, and for that I used the library string, that we have already seen, and getline(). I used this https://www.youtube.com/watch?v=5xEkuvTxQ4Y&index=46&t=524s&list=WL video as reference and also a blog from my friend Esteban who helped me a lot https://blogdeesteban.000webhostapp.com/.

Codigo

#include <iostream>
#include <string>
#include <fstream>

 

using namespace std;

int main() {

int car=0,lines=0; //variables para contar caracteres y lineas
ifstream ar; // definir la variable de texto

string input;
ar.open(“prueba.txt”,ios::in); //abrir el archivo prueba

while (!ar.eof()) {
getline(ar,input,’\n’); //del archivo ar guardad como input lo que hay ahi hasta que se de enter
car +=input.size();
lines++;
}
cout<<“El numero de caracteres es :”<<car<<endl;
cout<<“El numero de renglones es :”<<lines<<endl;

 

 

return 0;

 

}

--Originally published at PZ

Its the perfect moment to start working with arrays and vector, both are amazing topics that will help me a lot in the future, because it is imposible to make a programm with a huge amount of numbers with out arrays or vectors.

To be honest I didnt know what both of the are, before doing this work, but when I start researching in YouTube I discovered that this was an amazing topic. I watched this video to understand the topic https://www.youtube.com/watch?v=gCBpGyKyaGU.

Then I searched on how to use standar deviation and I watched this video https://www.youtube.com/watch?v=jMOwnFXz2lc, in this video I also understand on how to use the library math which can be very helpful in the future, even in physics.

Code

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
int size = 10;
float numbers[size];
float suma,prom,desv,varianza;

cout << “Please enter up tp 10 positive numbers.” << endl;

for (int i=0; i < size; i++)
{
cin >> numbers[i];
}

cout << endl;

for (int i=0; i < size; i++)
{
suma += numbers[i];
prom = suma/size;

 

}

for (int i=0; i < size; i++)
{

cout << “Los numeros elegidos son ” << numbers[i]<<endl;
}
for (int i=0; i < size; i++)
{

varianza=varianza+pow((numbers[i]-prom),2);
}
desv=sqrt(varianza/(size-1));

 

cout<<“La suma de los numeros es: “<<suma<<” el promedio es: ” <<prom<<” la desviacion es “<<desv<<endl;

 

return 0;

}

 

 

--Originally published at PZ

This was a very challenging programm for me because I hadnt used Do and While before, I have just used If and Else. So I try to make this factorial calculation with Do and While, so I first searched the structure of this and I found this page.

https://www.programarya.com/Cursos/C++/Ciclos/Ciclo-Do-While

After that I tried to make a formula to calculate the factorial of a number, so I reviewed the formula that I used in sum of numbers and I used as a base with for.

Finally I had problems with the while because I didnt used a string for the variable so I asked Ken and he helped me to finishmy programm.