Practice Question

Author: HimanshuGarg701

Diff for: 10_alphabets.py

@@ -0,0 +1,6 @@
+# printing first 10 aplhabets in list form
+x = []
+for i in range(97,107):     # alphabets can be printed using ascii numbers
+    i = chr(i)
+    x.append(i)
+print(x)

Diff for: abbrevations.py

@@ -0,0 +1,9 @@
+# example The Jungle Book should be displaye as TJB
+def abs(str_1):
+    str_2 = str_1.split(" ") # .split(" ") seprates the words at blank
+    for i in str_2:
+        print(i[0].upper(),end="")
+
+
+string_1 =input("enter the string: ")
+abs(string_1)

Diff for: add and sub fraction.py

@@ -0,0 +1,24 @@
+# making a class to add and subtract a fraction
+class Fraction:
+    def __init__(self, a, b, c, d):
+        self._a = a
+        self._b = b
+        self._c = c
+        self._d = d
+
+    def sum(self):
+        add = (self._a / self._b) + (self._c / self._d)
+        print("The sum of numbers is: ", add)
+
+    def diff(self):
+        sub = (self._a / self._b) - (self._c / self._d)
+        print("the difference of the numbers is: ", sub)
+
+
+w = float(input("enter the numerator of first number"))
+x = float(input("enter the denominator of first number"))
+y = float(input("enter the numerator of second number"))
+z = float(input("enter the denominator of second number"))
+result = Fraction(w, x, y, z)
+result.sum()
+result.diff()

Diff for: add_ing_at_end.py

@@ -0,0 +1,13 @@
+# adding ing at the end if character is longer then 3, if ing already there then add ly
+def string(str_1):
+    if len(str_1)<3:            # len shows the length of the string
+        return str_1
+    elif len(str_1)>3:
+        if str_1[len(str_1)-3:] != "ing":
+            return str_1 + "ing"
+        elif str_1[len(str_1)-3:] == "ing":
+            return str_1 + "ly"
+
+
+line = input("enter the string: ")
+print(string(line))

Diff for: age.py

@@ -0,0 +1,13 @@
+# enter current year and your birthe year and code will display your age
+x = int(input("enter the current date, month and year resp \n"))
+y = int(input())
+z = int(input())
+a = int(input("enter the birth date, month and year resp \n"))
+b = int(input())
+c = int(input())
+age = z - c  # current year minus birth year
+z = str(z)
+c = str(c)
+print("Date of birth is",str(a) +"/",str(b)+"/",str(c[2]),str(c[3]))
+print("Current date is",str(x) +"/",str(y)+"/",str(z[2]),str(z[3]))
+print("Age of person is",age)

Diff for: alphabetical.py

@@ -0,0 +1,8 @@
+# sorting the elements of a list
+x = []
+y = int(input("enter the number of elements: "))
+for i in range(y):
+    z = str(input("enter any element: "))
+    x.append(z)
+x.sort()
+print("The sorted order of the list is: ", x)

Diff for: alphbet_or_digit.py

@@ -0,0 +1,10 @@
+# determining whether the character entered is a digit or alphabet
+x = input("enter any character")
+if x.isdigit():     # checking for digit
+    print("enter input is digit")
+elif x.isalpha():    # checking for alphabet
+    print("input is alphabet")
+elif x.isspace():    # checking for space
+    print("white space")
+else:
+    print("wrong input")

Diff for: area.py

@@ -0,0 +1,24 @@
+# Finding the area of a triangle using class
+import math
+
+
+class Triangle:
+    def __init__(self, side1, side2, side3):
+        self._side1 = side1
+        self._side2 = side2
+        self._side3 = side3
+        self._semi_perimeter = 0
+
+    def semi(self):
+        self._semi_perimeter = (self._side1 + self._side2 + self._side3)/2
+        area = math.sqrt((self._semi_perimeter)*(self._semi_perimeter-self._side1)
+                         *(self._semi_perimeter-self._side2)*(self._semi_perimeter-self._side3))
+        print("The area of the given triangle is", area)
+
+
+a = int(input("enter the first side: "))
+b = int(input("enter the second side: "))
+c = int(input("enter the third side: "))
+AREA = Triangle(a, b, c)
+AREA.semi()
+

Diff for: area_triangle.py

@@ -0,0 +1,12 @@
+# program to find the area of a triangle
+import math # importing math module
+def area(x,y,z):
+    s = (x + y + z)/2
+    ar = math.sqrt(s*(s-x)*(s-y)*(s-z))     # this is the formula to find area 
+    return ar
+
+
+a = int(input("Enter a side: "))
+b = int(input("Enter a side: "))
+c = int(input("Enter a side: "))
+print(area(a,b,c))

Diff for: assertion error.py

@@ -0,0 +1,10 @@
+# The numberes should be entered as asked unless display to correct mistake
+x = int(input("enter the larger number: "))
+y = int(input("enter the smaller number: "))
+try:
+    if x > y:
+        print("you entered the right numbers")
+    else:
+        raise AssertionError
+except AssertionError:
+    print("Sorry you didn't entered the numbers correctly")

Diff for: average.py

@@ -0,0 +1,13 @@
+# finding the average of the numbers entered 
+def sum(args, count):
+    print(args/count)
+
+
+x = int(input("how many numbers you want?"))
+add = 0
+nums = 0
+for i in range(1, x+1):
+    num = int(input("enter any number: "))
+    nums += 1
+    add += num
+sum(add,nums)

Diff for: average_odd_even.py

@@ -0,0 +1,19 @@
+# checking the aveage of sum of odd and even numbers
+even = 0
+odd = 0
+count_even = 0
+count_odd = 0
+while True:
+    x = int(input("enter any number(press -1 to exit): "))
+    if x > 0:
+        if x%2==0:      # includes all even numbers
+            even += x
+            count_even +=1
+        else:           # includes all odd numbers
+            odd += x
+            count_odd +=1
+
+    elif x==-1:
+        print("The average of even numbers is: ",even/count_even)
+        print("the average of odd numbers is: ", odd/count_odd)
+        break

Diff for: binary.py

@@ -0,0 +1,17 @@
+# converting a decimal number into a binary number
+while True:
+    decimal_number = int(input("enter any number(press 999 to exit): "))
+    if decimal_number<0:
+        continue
+    elif decimal_number>0 and decimal_number!=999:
+        i = 0
+        binary_num = 0
+        while (decimal_number!=0):
+            remainder = decimal_number%2
+            binary_num = binary_num + remainder*(10**i)
+            decimal_number = int(decimal_number/2)
+            i += 1
+        print("binary number of is: ", binary_num)
+    elif decimal_number==999:
+        break
+

Diff for: book.py

@@ -0,0 +1,32 @@
+# adding and displaying details of a book using class
+class Book:
+    def __init__(self):
+        self.title = ""
+        self.author = ""
+        self.publisher = ""
+        self.ISBN = 0
+
+    def read(self):
+        self.title = input("enter the title: ")
+        self.author = input("Enter the author: ")
+        self.publisher = input("Enter the publisher: ")
+        self.ISBN = int(input("Enter the number: "))
+
+    def display(self):
+        print("The title of the books is: ", self.title)
+        print("The author of the book is: ", self.author)
+        print("The publisher of the book is: ", self.publisher)
+        print("The ISBN number of the book is: ", self.ISBN)
+
+
+z = Book()
+x = []
+while True:
+    y = input("Do you want to enter in the details?(y/n): ")
+    if y == "y":
+        z.read()
+        x.append(z)
+    elif y == "n":
+        for j in x:
+            j.display()
+        break

Diff for: cars.py

@@ -0,0 +1,15 @@
+# Displaying details of a car
+class Cars:
+    def __init__(self, colour, type, price):
+        self._colour = colour
+        self._type = type
+        self._price = price
+
+    def display(self):
+        print("The ", self._colour, " car is ", self._type, " type and costs Rs ", self._price)
+
+
+car1 = Cars("red", "convertible", "10 lakh")
+car2 = Cars("blue", "sedan", "6 lakh")
+car1.display()
+car2.display()

Diff for: complex.py

@@ -0,0 +1,27 @@
+# adding and subtracting 2 complex numbers using class
+class Complex:
+    def __init__(self, real1, img1, real2, img2):
+        self._real1 = real1
+        self._img1 = img1
+        self._real2 = real2
+        self._img2 = img2
+
+    def sum(self):
+        add_real = self._real1 + self._real2
+        add_img = self._img1 + self._img2
+        print("The sum of complex numbers is: ", add_real," + (",add_img, "i)")
+
+    def sub(self):
+        sub_real = self._real1 - self._real2
+        sub_img = self._img1 - self._img2
+        print("The difference of complex numbers is: ", sub_real, " + (", sub_img, "i)")
+
+
+a = float(input("enter the real part of first number: "))
+b = float(input("enter the imaginary part of first number: "))
+c = float(input("enter the real part of second number: "))
+d = float(input("enter the imaginary part of second number: "))
+result = Complex(a, b, c, d)
+result.sum()
+result.sub()
+

Diff for: concatenate.py

@@ -0,0 +1,13 @@
+# concatenating strings without directly adding two string 
+def conc(str_1, str_2):
+    x = " "
+    for i in range(0,len(str_1)):
+        x += str_1[i]               # x becomes equal to str_1 after finishing loop
+    for j in range(0,len(str_2)):
+        x += str_2[j]               # x further adds on str_2
+    return x
+
+
+strn_1 = input("enter any first string: ")
+strn_2 = input("enter any second string: ")
+print(conc(strn_1,strn_2))

Diff for: consonants.py

@@ -0,0 +1,14 @@
+# print all the consonants present in all the words of the list
+x = []
+y = int(input("enters the number of terms: "))
+for i in range(y):
+    z = input("enter the element: ")
+    x.append(z)
+print("the entered list is: ", x)
+
+for b in x:
+    print()
+    for c in range(0,len(b)):
+        if b[c] not in ("aeiou"):
+            print(b[c],end=",")
+

Diff for: copying_from_list.py

@@ -0,0 +1,8 @@
+# there is a predefined list and a tuple, return the common elements in form of list
+x = ["1", "2", "abc", "def", "ghi", "4", "5"]
+y = ("abc", "2", "5", "def", 3)
+z = []
+for i in y:
+    if i in x:
+        z.append(i)
+print(z)

Diff for: count_a_value.py

@@ -0,0 +1,11 @@
+# counting number of times a value is present inside the list
+x = []
+y = int(input("enter the number of terms: "))
+for i in range(y):
+    z = input("enter the element: ")
+    x.append(z)
+y = set(x)              # so that each item is checked once
+for i in y:
+    if i in x:
+        b = x.count(i)
+        print(i,"is present ",b,"number of times")

Diff for: counting.py

@@ -0,0 +1,18 @@
+# counting the number of the uppercase and lowercase letters, press & to exit
+upper = 0
+lower = 0
+digit = 0
+while True:
+    x = input("enter any character(press & to exit)")
+    if x.isupper():
+        upper = upper+1
+    elif x.islower():
+        lower = lower+1
+    elif x.isdigit():
+        digit += 1
+    elif x=='&':
+        print("lower case: ",lower)
+        print("upper case: ",upper)
+        print("digits: ",digit)
+        break
+

Diff for: delete_str_from_another.py

@@ -0,0 +1,14 @@
+# deleting a specified thing for the first thing
+def delete(str_1,str_2):    # str_1 is the main string; str_2 is what need to be removed
+    result=" "
+    for i in str_1:
+        if i in str_2:
+            continue
+        else:
+            result += i
+    return result
+
+
+string_1 = input("enter the string: ")
+string_2 = input("enter what you want to remove: ")
+print(delete(string_1,string_2))

Diff for: deleting_numbers.py

@@ -0,0 +1,12 @@
+# make a list from 1-20 and then delete numbers which are divisible by 5
+x = []
+for i in range(1,21):
+    x.append(i)
+print("The numbers are: ",x)
+y = []
+for j in x:
+    if int(j)%5==0:
+        continue
+    else:
+        y.append(j)
+print("The new list is: ",y)

Diff for: dictionary(bill).py

@@ -0,0 +1,7 @@
+# making a food bill for all the items in a dictionary
+price = {"apple": 50, "mango": 25, "banana": 30, "tomato": 40}
+sum = 0
+for i,j in price.items():
+    print("price of " ,i, "is Rupees ",j)
+    sum += int(j)
+print("The total price to be paid is Rupees ",sum)

Diff for: dictionary(birthday).py

@@ -0,0 +1,14 @@
+# adding or verifying the birth date of a person using a dictionary
+birth = {"raju": "Jan 1, 2000", "baju":"Jan 4, 2000", "kaju":"Jan7, 2000"}
+x = str(input("enter the name you are looking for: "))
+
+if x in birth.keys():
+    print("The birth date of",x, "is: ",birth[x])
+
+
+elif x!= birth.keys():
+    print("your searched name is not mentioned here, please provide the birth date")
+    z = input("enter the date: ")
+    birth[x] = z
+    print("the new dict is: ",birth)
+

Diff for: dictionary(menu).py

@@ -0,0 +1,11 @@
+# show the price of the ordered dish (using dictionary)
+menu = {"burger":50, "noodles":80, "fries":30,"cake":100, "pizza":100}
+while True:
+    x = str(input("enter what you want to eat: "))
+
+    if x in menu.keys():
+        print("Your order of ",x,"will cost you Rupees ",menu[x])
+        break
+    else:
+        print("SORRY THIS ITEM IS UNAVAILABLE, PLEASE RE-ENTER THE ORDER")
+        continue