Python

1. Compute the sum, subtraction, multiplication, division, and exponent by given variable.

Input:-

x=int(input('enter the value of a'))
y=int(input('enter the value of b'))
print(x+y)
print(x-y)
print(x/y)
print(x*y)
print(x%y)

OUTPUT:-

 

 

 

2. find the areas of triangle, circle, trapezoid, rectangle, square, parallelogram.

#AREA OF SQUARE

Input:-

s=int(input('enter the side of sqaure'))
print(s*s)




area of triangle
a=int(input('enter the value of base of a triangle'))
b=int(input('enter the value of height of a triangle'))

print(1/2*a*b)

print()

#area of rectangle


l=int(input('enter the value of lenth of a rectangle'))
b=int(input('enter the value of breadth of a rectangle'))
print(l*b)

print()


#area of trapezoid formula (a+b/2)*h      a and b sum of two parllel sides h = height


a=int(input('enter the value of base of one side '))
b=int(input('enter the value of base of second side'))
h=int(input('enter the value of height of trapezoid'))
print(a+b/2* h)

print()




 #area of ||gm
b=int(input('enter the value of base of a parallelogram'))
h=int(input('enter the value of height of a parallelogram'))
print(b*h)

print()


#area of circle


Pi=3.14
r=float(input('enter the value of radius r'))
area= 2*Pi*r*r
print(area)

OUTPUT :-

 

3. Compute the volume of the following 3D shapes cube, cylinder, cone, and sphere.

 VOL OF CUBE
Input:-

s=int(input('enter the vol of side of cube'))
print(s*s*s)

print()

#vol of cycl formula=ah a= area h= height
a=int(input('enter the value of area of cycl'))
h=int(input('enter the value of height of cycl'))
print(a*h)

print()

#vol of cone  formula =1/3(ah)
a=int(input('enter the value of area of cone'))
h=int(input('enter the value of height of cone'))
print(1/3*a*h)


#vol of sphere formula=4/3pie rcube
pi=3.14
r=int(input('enter the value of radius of sphere'))
print(4/3*pi*r*r*r) 

OUTPUT:-

4. Compute and print roots of quadratic equation ax2+bx+c=0, where the values of a,b, and c  are the input by the user.

Input:-

# import complex math module 

import cmath  

a = float(input('Enter a: '))  

b = float(input('Enter b: '))  

c = float(input('Enter c: '))  




# calculate the discriminant  

  d = (b**2) - (4*a*c)  

  # find two solutions  

sol1 = (-b-cmath.sqrt(d))/(2*a)  

sol2 = (-b+cmath.sqrt(d))/(2*a)  

print('The solution are {0} and {1}'.format(sol1,sol2))

 5. Print numbers up to N which are not divisible by 3,6,9 e.g. 1,2,4,5,7.

INPUT:-

N = int(input('enter N:'))
print("the numbers from 1 to ",N)
print('not divisble by 3,6,9')
for i in range(1,N+1):
    if i%3!=0:
        print(i,end=",") 

OUTPUT:- 

 

6. write a program to determine whether a triangle is isosceles or not.

Input:-

s1=input('side 1 :')
s2=input('side 2 :')
s3=input('side 3 :')
if s1==s2 and s2!=s3 and s1!=s3 :
    print("triangle is isosceles")
elif s2==s3 and s2!=s1 and s1!=s3 :
    print("triangle is isosceles")
elif s3==s1 and s1!=s2 and s3!=s2 :
    print("triangle is isosceles")
else:
    print('triangle is not isosceles') 

OUTPUT:- 

7. Print multiplication table of no. input by the user.

Input:-

n=int(input('enter a number :'))

for i in range(1,11):
    print(n,"*" , i , "=", (n*i))

Output:-

8. Compute the sum of natural from one to n numbers.

Input:-

N=int(input('enter a number:'))
if N<0:
    print('enter a positive number')
else:
    sum=0
    while(N>0):
        sum+=N
        N-=1
    print("the sum is ",sum)

Output:-

9. Print fibonacci series up to n numbers e.g.0 11 2 3 5 8 13….n.

Input:-

n= int(input("How many terms? "))
n1, n2 = 0, 1
count = 0
if n <= 0:
   print("Please enter a positive integer")
elif n == 1:
   print("Fibonacci sequence upto",n,":")
   print(n1)
else:
   print("Fibonacci sequence:")
   while count < n:
       print(n1)
       nth = n1 + n2
       n1 = n2
       n2 = nth
       count += 1

Output:-

10. Compute factorial of a given number.

Input:-

def factorial(n):
    if (n<=1):
        return 1
    return n*factorial(n-1)
print(factorial(int(input("enter a  factorial of number:")))) 

Output:-

11. Count occurrences of digit 5 in a given no. input by the user in python.

Input:-

s =int(input('enter a no.'))

s=str(s)

print("count of 5 :" ,s.count("5"))

print()

 

Output:-

12. Print Geometric and harmonic means of a series input by the user.

Input:-

 a=int(input('enter 1st no.'))
b=int(input('enter 2nd no.'))
GM=(a*b)**0.5
HM=(2*a*b)/(a+b)
print('geometric mean of' ,a, 'and' ,b, '=',GM)
print('Harmonic mean of' ,a, 'and' ,b, '=',HM)

Output:-

13. Evaluate the following expression.

Input:-

expressions: a. x-x2/2!+x3/3!-x4/4!+…..xn/n!
b. x-x3/3!+x5/5!-x7/7!+…..xn/n

Output:-

14. Print all the possible combinations of 4,5,6.

Input:-

def comb(L):
    for i in range(3):
        for j in range(3):
            for k in range(3):

                if (i != j and j != k and i != k):
                    print(L[i], L[j], L[k])


comb([4, 5, 6])

Output:-

15. Determine prime numbers within a specific range.

Input:-

lower = int(input("Enter lower range: "))
upper = int(input("Enter upper range: "))

for num in range(lower, upper + 1):
    if num > 1:
        for i in range(2, num):
            if (num % i) == 0:
                break
        else:
            print(num)

Output:-

16. Count the number of people of age above 60 and below 90.

Input:-

n=int(input('enter the list or no. of person'))
l=[]
count=0
print('enter age of person in list')
for i in range(0,n):
    print('input age of ',i+1,"person:")
    k=int(input())
    l.append(k)
    if (l[i]>60 and l[i]<90):
      count=count+1
print('no. of person of age above 60 and below 90=',count)

Output:-

17. Compute the transpose of a matrix.

Input:-

X = [[1, 2],
     [4, 5],
     [7, 8]]

Result = [[0, 0, 0],
          [0, 0, 0]]

for i in range(len(X)):
    for j in range(len(X[0])):
        Result[j][i] = X[i][j]

for r in Result:
    print(r)

Output:-

18. Perform the following operation on two matrices.

Input:-

MATRICES ADDITION
X = [[12,7],
    [4 ,5],
    [7 ,8]]

Y = [[5,8],
    [6,7],
    [4,5,]]

result = [[0,0],
         [0,0],
         [0,0]]
for i in range(len(X)):
   for j in range(len(X[0])):
       result[i][j] = X[i][j] + Y[i][j]

for r in result:

   print(r)

Output:-

# SUBTRACTION OF TWO MATRICES.

Input:-

X = [[12, 7],
     [4, 5],
     [7, 8]]

Y = [[5, 8],
     [6, 7],
     [4, 5, ]]

result = [[0, 0],
          [0, 0],
          [0, 0]]
for i in range(len(X)):
    for j in range(len(X[0])):
        result[i][j] = X[i][j] - Y[i][j]

for r in result:
    print(r)

Output:-

# MULTIPLICATION OF TWO MATRICES.

Input:-

X = [[12, 7],
     [4, 5],
     [7, 8]]

Y = [[5, 8],
     [6, 7],
     [4, 5, ]]

result = [[0, 0],
          [0, 0],
          [0, 0]]
for i in range(len(X)):
    for j in range(len(X[0])):
        result[i][j] = X[i][j] * Y[i][j]

for r in result:
    print(r)

Output:-

19. Count the occurrence of vowels.

Input:-

 n = str(input("Please type a sentence: "))
def Check_Vow(string, vowels):
    final = [each for each in string if each in vowels]
    print(len(final))
    print(final)
vowels = "AaEeIiOoUu"
Check_Vow(n, vowels);  

Output:-

20. Count the total no. vowels in a word.

Input:-

ch=str(input('enter a string'))
counta=0
counte=0
counti=0
counto=0
countu=0
for i in ch:
    if i=='a'or i=='A':
             counta= counta+1
    elif i == 'i' or i == 'I':
             counti = counti + 1
    elif i == 'o' or i == 'O':
             counto = counto + 1
    elif i == 'e' or i == 'E':
             counte = counte + 1
    elif i == 'u' or i == 'U':
             countu = countu + 1
print('a occurs','=',counta)
print('e occurs','=',counte)
print('i occurs','=',counti)
print('o occurs','=',counto)
print('u occurs','=',countu) 

Output:-

21. Determine whether the string is palindrome or not.

Input:-

 my_str = 'hey yoo'
my_str = my_str.casefold()
rev_str = reversed(my_str)
if list(my_str) == list(rev_str):
   print("The string is a palindrome.")
else:
   print("The string is not a palindrome.")

Output:-

22. Perform the following operations on a list of no.

Input:-

#insert an element in list

list = [89, 56, 90, 34, 89, 12]
list.insert(2, 23)
print("The list elements are")

for i in range(0, len(list)):
  print(list[i])

Output:-

#deleting an item

Input:-

data=[2,4,5,6,7]

del data[3]

print(data)

Output:-

23. Display word after sorting in alpha order.

Input:-

my_str = "Hello i am sourav juneja"
words = [word.lower() for word in my_str.split()]
words.sort()
print("The sorted words are:")
for word in words:
   print(word)

Output:-

24. Perform a sequential search on the list of given numbers.

Input:-

nlist = [4, 2, 7, 5, 12, 54, 21, 64, 12, 32]
print('List has the items: ', nlist)
searchItem = int(input('Enter a number to search for: '))
found = False
for i in range(len(nlist)):
    if nlist[i] == searchItem:
        found = True
        print(searchItem, ' was found in the list at index ', i)
        break
if found == False:
    print(searchItem, ' was not found in the list!')

Output:-

25. Perform a sequential search on the ordered list of given numbers.

Input:-

li = [1,5,7,9,2,0,10,15,6,7]
k = -1
li.sort()
print("Ordered list: ",li)
while k !=0 :
       n = int(input("\nEnter an element which you want to search: "))
       for i in range(0,len(li)) :
           if li[i]==n :
                print("Found!!! At index = ",i,"\n")
                k = 0
       if k == -1 :
                print("Not found!!!, Enter again")

Output:-

26. Maintain practical notebooks as per their serial numbers in the library using python dictionary.

Input:-

dict={"101:'PYTHON' , 102:'DATA STRUCT', 103:'MATHS' ,104:'ENGLISH' ,105:'PCAT' ,106:'COMPUTER'"}
print(dict)

Output:-

27. Perform following operations on dictionary 1)insert 2)delete 3) change.

# check whether a no. is in given range using functions

Input:-

def ran():
    i=int(input('enter the 1st elemnet of range :'))
    j = int(input('enter the 2nd elemnet of range :'))
    if i>j:
        n=int(input('enter the no. to check whether it is present or not'))
        if n in range(i,j+1):
            print('found!!')

        else:
            print('not found!!!!!!')

    else:
        print('wronge range input !!!! input again \n')
        ran()
ran()

Output:-

28. Write a python function that accepts a string and calculates no. of upper case and lower case letters available in that string.

Input:-

ch=str(input('enter a string'))
s1=0
s2=0
for i in ch:
    if(i.isupper()):
        s1=s1+1
    elif(i.islower()):
        s2=s2+1
print('total no. of uppercase letter:',s1)
print('total no. of lowecase letter:',s2)

Output:-

29. To find a max of three numbers using function.

Input:-

def greater():
     i = int(input('enter the 1st number  :'))
     j = int(input('enter the 2nd number :'))
     k = int(input('enter the 3rd number :'))
     if i>=j:
        if i>=k:
               print(i,'is maximum..')
        else:
               print(k,'is maximum..')
     elif j>=i:
         if j>=k:
           print(j,'is maximum..')
         else:
           print(k,'is maximum..')

greater()

Output:-

30. Multiply all the numbers in a list using functions.

Input:-

def multi(k):
    a=1
    for i in k:
         a=a*i
    print('multiplication of all list element =',a)

li=[1,2,3,4,5,6]
multi(li)

Output:-

31. Solve the Fibonacci sequence using recursion.

Input:- 

def fibonacci(n):
    if n<=1:
        return n
    else:
        return(fibonacci(n-1)+fibonacci(n-2))

s=int(input('enter a no.'))
print('series')
for i in range(s):
    print(fibonacci(i),end=',')

Output:-

32. Get the factorial of a non-negative integer using recursion.

Input:-

def fact(x):
    if(x==0):
        return 1;
    elif(x>0):
        x=x*fact(x-1);
        return x;
    else:
        return -1;

k=int(input('enter a number'))
m=fact(k)
if (m==-1):
    print('wrong output!! enter other no.')
else:
    print('fact of ',k,'is',m)

Output:-

33. Design a python class named rectangle constructed by length and width also design a method to which will compute the area of the rectangle.

Input:-

class Rectangle():
    def __init__(self, l, w):
        self.length = l
        self.width  = w

    def rectangle_area(self):
        return self.length*self.width

newRectangle = Rectangle(12, 10)
print(newRectangle.rectangle_area())

Output:-

34. Write a Python class named Circle constructed by a radius and two methods that will compute the area and the perimeter of a circle.

Input:-

class Circle():

    def __init__(self, r):

        self.radius = r

    def area(self):

        return self.radius**2*3.14

    def perimeter(self):

        return 2*self.radius*3.14

NewCircle = Circle(8)

print(NewCircle.area())

print(NewCircle.perimeter())

Output:-

35. Write a Python program to reverse a string word by word.

Input:-

class string:
    __line=str()

    def insert(self):
            s=str(input('enter a string:'))
            print()
            self.line=s
            print('before reversing')
            print()

    def __reversed__(self):
        self.line=self.line[::-1]
        return self.line

obj=string()
obj.insert()
print('string after reversing ',obj.__reversed__())

Output:-

36. Write a Python program to read an entire text file.

Input:-

sample_text = open("C:/Users/abcd/Desktop/kida.txt",'r')
for line in sample_text:
    print(line)
sample_text.close()

Output:-

37. design a python program to read the first n lines of text files.

Input:-

def nfile():
   try:
    f = open('C:/Users/sourav/Desktop/kida.txt', 'r')
    count = 0
    for i in f:
        count = count + 1
    f.seek(0)
    print('total numbers of line in file:' , count)
    print()
    try:
        n = int(input('enter no.of lines(0 < n <='+str(count) +') to print: '))
    except ValueError:
         print('invalid input!!! Input again……..')
         print()
         nfile()
    print()
    if (n > 0 and n <= int(count)):
        for k in range(n):
            print('line', k+1,':', f.readline())
    else:
        print('invalid input!!! Input again….')
        print()
        nfile()
   except:
    print('error !!!!')
   finally:
        f.close()
nfile()

Output:-

38. Construct a python program to write and append text to a file and display the text.

Input:-

open('C:/Users/sourav/Desktop/kida.txt','r')
print('before appending...\n')
print(fi.read(),'\n')
fi.close()

fi=open('C:/Users/abc/Desktop/kida.txt',"a")
fi.write("\nmy name is junior")
fi.close()

fi=open('C:/Users/abc/Desktop/kida.txt','r')
print('after appending..\n')
print(fi.read(),"\n")
fi.close()

Output:-