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Merge pull request #56 from josemoracard/jose6-24-class-with-two-methods
exercises 24-class-with-two-methods to 27-sequence-of-words
2 parents 6c40b2f + 24ee78f commit a0a56a4

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# `24` Una clase con dos métodos
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# `24` Class with two methods
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Define una clase que tenga al menos dos métodos:
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Define a class which has at least two methods:
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getString: obtener un string desde la entrada de la consola.
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printString: imprimir el string en mayúscula.
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Por favor incluye una función simple de prueba para probar los métodos de la clase.
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## 📝 Instrucciones:
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Pistas:
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Usa el método __init__ para construir algunos parámetros.
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1. Define una clase llamada `InputOutString` que tenga al menos dos métodos:
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+ `get_string` para obtener un string de entrada desde la consola.
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+ `print_string` para imprimir el string obtenido en mayúsculas.
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2. Prueba los métodos de tu clase.
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## 💡 Pista:
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+ Usa el método `__init__` para construir tus parámetros.
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# `24` Class with two methods
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Define a class which has at least two methods:
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getString: to get a string from console input
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printString: to print the string in upper case.
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Also please include simple test function to test the class methods.
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## 📝 Instructions:
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Hints:
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Use __init__ method to construct some parameters
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1. Define a class called `InputOutString` which has at least two methods:
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+ `get_string` to get a string from console input.
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+ `print_string` to print the string in upper case.
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2. Test your class' methods.
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## 💡 Hint:
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+ Use the `__init__` method to construct your parameters.
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# Your code here
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class InputOutString(object):
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# Your code here
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class InputOutString:
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def __init__(self):
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self.s = ""
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self.input_string = ""
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def getString(self):
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self.s = raw_input()
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def get_string(self):
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self.input_string = input("Enter a string: ")
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def printString(self):
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printself.s.upper()
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def print_string(self):
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print(self.input_string.upper())
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strObj = InputOutString()
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strObj.getString()
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strObj.printString()
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string_object = InputOutString()
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string_object.get_string()
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string_object.print_string()
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# `25` Imprime la fórmula
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# `25` Print formula
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Escribe un programa que calcule e imprima el valor de acuerdo a la fórmula dada:
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## 📝 Instrucciones:
44

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Q = Square root of [(2 * C * D)/H]
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1. Escribe una función llamada `print_formula()`, con un parámetro que calcule e imprima el valor según la fórmula dada.
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A continuación encontrarás los valores fijos de C y H:
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C es 50. H es 30.
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D es la variable cuyos valores debiesen ser ingresados en tu
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Ejemplo:
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Digamos que le sentrega la siguiente secuencia separada por coma al programa:
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100,150,180
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El resultado del programa debiese ser:
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18,22,24
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```text
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Q = Square root of (2 * c * d) / h
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```
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Pistas:
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Si el resultado recicido es un decimal, debería rendondearse a su valor más cercano (por ejemplo, si el resultado es 26.0, debiese imprimirse como 26)
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En el caso de que se le hayan entregado datos a la cuestión, deben asumirse como una entrada de la consola.
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*A continuación encontrarás los valores fijos de `c` y `h`:*
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+ `c` es 50.
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+ `h` es 30.
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+ `d` sería el parámetro de la función.
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## 📎 Ejemplo de entrada:
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```py
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print_formula(150)
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```
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## 📎 Ejemplo de salida:
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```py
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22
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```
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## 💡 Pistas:
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+ Si el resultado recibido es un decimal, debería redondearse a su valor más cercano (por ejemplo, si el resultado es 26.0, debiese imprimirse como 26).
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+ Importa el módulo `math`.

‎exercises/25-print-formula/README.md‎

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# `25` Print formula
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Write a program that calculates and prints the value according to the given formula:
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Q = Square root of [(2 * C * D)/H]
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Following are the fixed values of C and H:
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C is 50. H is 30.
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D is the variable whose values should be input to your program in a comma-separated sequence.
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Example
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Let us assume the following comma separated input sequence is given to the program:
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100,150,180
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The output of the program should be:
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18,22,24
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Hints:
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If the output received is in decimal form, it should be rounded off to its nearest value (for example, if the output received is 26.0, it should be printed as 26)
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In case of input data being supplied to the question, it should be assumed to be a console input.
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## 📝 Instructions:
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1. Write a function `print_formula()`, with one parameter that calculates and prints the value according to the given formula:
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```text
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Q = Square root of (2 * c * d) / h
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```
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*Following are the fixed values of `c` and `h`:*
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+ `c` is 50.
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+ `h` is 30.
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+ `d` would be the parameter of the function.
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## 📎 Example input:
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```py
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print_formula(150)
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```
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## 📎 Example output:
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```py
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22
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```
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## 💡 Hints:
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+ If the output received is in decimal form, it should be rounded off to its nearest value (for example, if the output received is 26.0, it should be printed as 26).
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+ Import the `math` module.

‎exercises/25-print-formula/app.py‎

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# Your code here
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# Your code here
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import math
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def print_formula(num):
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return round(math.sqrt(2*50*num/30))
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print(print_formula(5))
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def print_formula(d):
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return round(math.sqrt(2 * 50 * d / 30))
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print(print_formula(150))

‎exercises/25-print-formula/test.py‎

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def test_function_existence(capsys, app):
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assert app.print_formula
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@pytest.mark.it('The solution should work as expected')
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@pytest.mark.it('The solution should work as expected. Testing with 100')
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def test_expected_output(capsys, app):
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assert app.print_formula(100,150,180) == "18,22,24"
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assert app.print_formula(100) == 18
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@pytest.mark.it('The solution should work as expected')
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@pytest.mark.it('The solution should work as expected. Testing with 90')
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def test_another_output(capsys, app):
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assert app.print_formula(200,90,300) == "26,17,32"
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assert app.print_formula(90) == 17
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# `26` Array de dos dimensiones
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# `26` Two dimensional list
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Escribe un progrsms que reciba dos dígitos X,Y como entrada y genere un array de dos dimensiones. El valor del elemento en la fila i-th y en la columna j-th del array debiese ser i*j.
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Nota: i=0,1.., X-1; j=0,1,¡­Y-1.
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Ejemplo:
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Supongamos que se le entregan lasa siguientes entradas al programa:
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3,5
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Entonces, el resultado del programa debería ser:
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[[0, 0, 0, 0, 0], [0, 1, 2, 3, 4], [0, 2, 4, 6, 8]]
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## 📝 Instrucciones:
104

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Pistas:
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Nota: En el caso de que se le entreguen datos a la cuestión, debe asumirse como una entrada de la consola en un formulario separado por comas.
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1. Escribe una función llamada `two_dimensional_list()` que tome 2 dígitos (x, y) como entrada y genere una lista bidimensional o matriz.
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2. El valor del elemento en la fila `i` y columna `j` de la lista debería ser `i*j` (los valores de sus índices).
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## 📎 Ejemplo de entrada:
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```py
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two_dimensional_list(3,5)
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```
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## 📎 Ejemplo de salida:
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```py
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[[0, 0, 0, 0, 0], [0, 1, 2, 3, 4], [0, 2, 4, 6, 8]]
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```

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