Wednesday, 6 November 2019

Python Programs 3

1)
Write a program to accepts two integers and print their sum.
Write a program that accepts radius of a circle and prints its area.
3)
Write a program that accepts base and height and calculate the area of triangle.
4)
Write a program that inputs a student’s marks in three subjects (out of 100) and prints the percentage marks.
5)
Write a program to compute area of square andtriangle.
6)
Write a program to calculate simple interest.
7)
Write a program to read two numbers and prints theirquotient and reminder.
8)
Write a program to find whether a given number iseven or odd.
9)
Write a program to find largest among three integers.
10)
Write a program to find lowest among three integers.
11)
Write a program that accepts length and breadth of rectangle and calculate its area.
12)
Write a program that accepts weight in Kg and height in meters and calculate the BMI.
Write a program that reads the number n and print the value of n², n³ and n⁴.


14)
Write a program to accept the marks of five subjects and calculate the average marks.
15)
Write a program to accept theheight in cm and convert it into feet and inches.
16)
Write a program that accepts the age and print if one is eligible to vote or not.
17)
Write a program that accepts two numbers and check if the first number is fully divisible by second number or not.
18)
Write a program to read base,width and height of parallelogram and calculate its area and perimeter.
19)
Write a program to accept the year and check if it is a leap year or not.
Write a program to obtain x, y, z and calculate 4x⁴+3y³+9z+6π.
21)
Write a program to input a number and print its square if it is odd, otherwise print its square root.
22)
Write a program to input a number and check whether it is positive, negative or zero.
23)
Write a program to input percentage marks of a student and find the grade as per following criterion:
Marks                        Grade
>=90                            A
75-90                           B
60-75                           C    
Below 60                    D
24)
Write a program to enter a number and check if it is a prime number or not.
25)
Write a program to display a menu for calculating area of circle or perimeter of the circle.
26)
Write a program that reads two numbers and an arithmetic operator and displays the computed result.
27)
Write a program to print whether a given character is an uppercase or a lowercase character or a digit or any other character.
28)
Write a program to calculate and print the roots of a quadratic equation ax²+bx+c=0.(a≠0)
29)
Write a program to print sum of natural numbers between 1 to 7. Print the sum progressively i.e. after adding each natural number, print sum so far.
30)
Write a program to calculate the factorial of a number.
31)
Write a program to create a triangle of stars using nested loop.
32)
Write a Python script to print Fibonacci series’ first 20 elements.
33)
Write a program to read an integer>1000 and reverse the number.
34)
Input three angles and determine if they form a triangle or not.
35)
Write a Python script that displays first ten Mersenne numbers.
36)
Write a Python script that displays first ten Mersenne numbers and displays ‘Prime’ next to Mersenne Prime Numbers.
37)
Write a program to calculate BMI and print the nutritional status as per following table:
Nutritional Status
WHO criteria BMI cut-off
Underweight
<18.5
Normal
18.5-24.9
Overweight
25-29.9
Obese
≥30
38)
Write python script to print following pattern.
1
1          3
1          3          5
1          3          5          7
39)
Write a program to find sum of series :
 s=1+x+x ²+x ³+x ⁴…+x ⁿ
40)
Write a python script to input two numbers and print their lcm and hcf.
41)
Write a python script to calculate the sum of the following series:
S=(1)+(1+2)+(1+2+3)+……+(1+2+3+….+n)
42)  
                   
Write a program to print the following using a single loop (no nested loops)
1
1          1
1          1          1
1          1          1          1
1          1          1          1          1
43)
Write a program to print a pattern like:
4 3 2 1
4 3 2
4 3
44)
44.Program that reads a line and print its statistics like:
Number of uppercase letters:
Number of lowercase letters:
Number of alphabets:
Number of digits:
45)
Write a program that reads a line and a substring and displays the number of occurrences of the given substring in the line.
46)
Write a program that takes a string with multiple words and then capitalizes the first letter of each word and forms a new string out of it.
47)
Write a program that reads a string and checks whether it is a palindrome string or not.
48)
Write a program that reads a string and displays the longest substring of the given string having just the consonants.
49)
Write a program that reads a string and then prints a string that capitalizes every other letter in the string.
50)
Write a program that reads the email id of a person in the form of a string and ensures that it belongs to domain @edupillar.com (Assumption: no invalid characters are there in email-id)





1.Write a program to accepts two integers and print their sum.


a=int(input('Enter the first integer:'))
b=int(input('Enter the second integer:'))

Sum=a+b

print('The two integers are:', a, b)
print('The sum of two integers are:', Sum)

OUTPUT:-
 










2.Write a program that accepts radius of a circle and prints its area.


r=int(input('Enter the radius of circle:'))
Area=3.14*r**2
print('The area of the circle is:', Area)

OUTPUT:-

3. Write a program that accepts base and height and calculate the area of triangle.
b=float(input('Enter the base of triangle:'))
h=float(input('Enter the height of triangle:'))

Area=(1/2)*b*h

print('The area of triangle is:', Area)

OUTPUT:-


4. Write a program that inputs a student’s marks in three subjects (out of 100) and prints the percentage marks.

print('Enter the marks of three subject out of 100')
a=float(input('Enter the marks of first subject:'))
b=float(input('Enter the marks of second subject:'))
c=float(input('Enter the marks of third subject:'))

P=(a+b+c)/3
print('The percentage marks are:', P,'%')

OUTPUT:-
5. Write a program to compute area of square and triangle.

a=float(input('Enter the value of side:'))

A=a**2
T=((3**0.5)/4)*a**2

print('The area of square is:', A)
print('The area of triangle is:', T)

OUTPUT:-
6. Write a program to calculate simple interest.

P=float(input('Enter the principal amount in ₹:'))
R=float(input('Enter the rate of interest:'))
T=float(input('Enter the time in years:'))

SI=(P*R*T)/100

print('The simple interest is:', SI,'₹')

OUTPUT:-
7. Write a program to read two numbers and prints their quotient and reminder.
a=float(input('Enter the dividend:'))
b=float(input('Enter the divisor:'))

Q=a//b
R=a%b

print('The quotient is:', Q)
print('The remainder is:', R)

OUTPUT:-
8. Write a program to find whether a given number is even or odd.

a=int(input('Enter the number:'))

if a%2==0:
print('The number is even')
else:
print('The number is odd')

OUTPUT:-
9. Write a program to find largest among three integers.

a=int(input('Enter the first integer:'))
b=int(input('Enter the second integer:'))
c=int(input('Enter the third integer:'))

if a>b and a>c:
print(a, 'is the largest integer')
if b>a and b>c:
print(b, 'is the largest integer')
if c>a and c>b:
print(c, 'is the largest integer')

OUTPUT:-

10.Write a program to find lowest among three integer.
a=int(input('Enter the first integer:'))
b=int(input('Enter the second integer:'))
c=int(input('Enter the third integer:'))

ifa<b and a<c:
print(a, 'is the smallest integer')
ifb<a and b<c:
print(b, 'is the smallest integer')
ifc<a and c<b:
print(c, 'is the smallest integer')

OUTPUT:-

11. Write a program to that accepts length and breadth of rectangle and calculate its area.
l=float(input('Enter the length of rectangle:'))
b=float(input('Enter the breadth of rectangle:'))
area=l*b

print('Rectangle Specifications')
print('Length=',l)
print('Breadth=', b)
print('Area=', area)


OUTPUT:-
12.Write a program that accepts weight in Kg and height in meters and calculate the BMI.
W = float(input('Enter the weight in Kg:'))
H = float(input('Enter height in meters:'))
BMI=W/(H**2)

print('BMI is:', BMI)


OUTPUT:-


13.Write a program that reads the number n and print the value of n², n³ and n⁴.

a=float(input('Enter the value of n:'))
b=a**2
c=a**3
d=a**4
print('The value of n² is:', b)
print('The value of n³ is:', c)
print('The value of n⁴ is:', d)

OUTPUT:-
14.Write a program to accept the marks of five subjects and calculate the average marks.
a=float(input('Enter the marks of first subject:'))
b=float(input('Enter the marks of second subject:'))
c=float(input('Enter the marks of third subject:'))
d=float(input('Enter the marks of fourth subject:'))
e=float(input('Enter the marks of fifth subject:'))
Average=(a+b+c+d+e)/5
print('The average marks are:', Average)
OUTPUT:-
15.Write a program to accept the height in cm and convert it into feet and inches.

a=float(input('Enter your height in centimeters:'))

Feet=a*0.032
Inch=a*0.393

print('Your height in feet is:', Feet)
print('Your height in inch is:', Inch)


OUTPUT:-
16.Write a program that accepts the age and print if one is eligible to vote or not.
a=int(input('Enter your age:'))
if a>=18:
print('You are eligible to vote')
else:
print('You are not eligible to vote')


OUTPUT:-

17.Write a program that accepts two numbers and check if the first number is fully divisible by second number or not.
a=float(input('Enter the first number:'))
b=float(input('Enter the second number:'))
if a%b==0:
print('The first number is fully divisible by second number')
else:
print('The first number is not fully divisible by second number')

OUTPUT:-









18.Write a program to read base, width and height of parallelogram and calculate its area and perimeter.
b=float(input('Enter the base of parallelogram:'))
w=float(input('Enter the width of parallelogram:'))
h=float(input('Enter the height of parallelogram:'))

Area=b*h
Perimeter=2*(b+w)

print('The area of parallelogram is:', Area)
print('The perimeter of parallelogram is:', Perimeter)

OUTPUT:-
19.Write a program to accept the year and check if it is a leap year or not.
a=int(input('Enter the year:'))
if a%4==0:
print('This year is a leap year')
else:
print('This year is not a leap year')


OUTPUT:-
20.Write a program to obtain x, y, z and calculate 4x⁴+3y³+9z+6π.
print('To calculate 4x⁴+3y³+9z+6π')
x=float(input('Enter the number x:'))
y=float(input('Enter the number y:'))
z=float(input('Enter the number z:'))
import math
b=(4*math.pow(x,4))+(3*math.pow(y,3))+(9*z)+(6*math.pi)
print('The result of the above expression is:',b)

OUTPUT:-

21.Write a program to input a number and print its square if it is odd, otherwise print its square root.
x=float(input(‘Enter the number:’))
import math
a=math.pow(x,2)
b=math.sqrt(x)
if x%2!=0:
print('The value of square is:',a)
else:
print('The value of square root is:',b)

OUTPUT:-
22.Write a program to input a number and check whether it is positive, negative or zero.
a=float(input('Enter the number:'))
if a>=0:
if a==0:
                print('The number is zero')
else:
                print('The number is a positive number')
else:
print('The number is a negative number')

OUTPUT:-
23.Write a program to input percentage marks of a student and find the grade as per following criterion:
Marks                        Grade
>=90                            A
75-90                           B
60-75                           C    
Below 60                    D

a=float(input('Enter the percentage marks:'))
if a>=90:
print('The student has got an A grade')
elif a>=75 and a<90:
print('The student has got a B grade')
elif a>=60 and a<75:
print('The student has got a C grade')
else:
print('The student has got a D grade')



OUTPUT:-



24. Write a program to enter a number and check if it is a prime number or not.
num=int(input('Enter the number:'))
for i in range(2,num//2+1):
    if num%i==0:
        print('It is not a prime no.')
        break
else:
    print('It is a prime number')

OUTPUT:-

25.  Write a program to display a menu for calculating area of circle or perimeter of the circle.
r=float(input(‘Enter the radius of  the circle:’)
print(‘1.Calculate perimeter’)
print(‘2.Calculate area’)
choice=int(input(‘Enter your choice (1 or 2):’))
if choice==1:                           
        peri=2*3.14159*r
        print(‘Perimeter of the circle with radius’,r,’:’,peri)
else:
        area=3.14159*r*r
print(‘Area of the circle of the radius’,r,’:’,area)
26.Write a program that reads two numbers and an arithmetic operator and displays the computed result.
a=float(input('Enter the first number:'))
b=float(input('Enter the second number:'))
c=input('Enter the operator[/,*,+,-]:')
if c=='/':
    r=a/b
elif c=='*':
    r=a*b
elif c=='+':
    r=a+b
elif c=='-':
    r=a-b
else:
    print('Invalid operator')
print(a,c,b,'=',r)
27.Write a program to print whether a given character is an uppercase or a lowercase character or a digit or any other character.
ch=input('Enter a single character:')
if ch>='A' and ch<='Z':
    print('You have entered an uppercase character.')
elif ch>='a' and ch<='z':
    print('You have entered an lowercase character.')
elif ch>='0' and ch<='9':
    print('You have entered a digit.')
else:
    print('You have entered a special character.')
28.Write a program to calculate and print the roots of a quadratic equation ax²+bx+c=0.(a0)
import math
print('For quadratic equation, ax²+bx+c=0,enter coefficents below')
a=int(input('Enter a:'))
b=int(input('Enter b:'))
c=int(input('Enter c:'))
if a==0:
    print('Value of a should not be zero')
    print('Aborting!!')
else:
    d=b*b-4*a*c
    if d>0:
        root1=(-b+math.sqrt(d))/(2*a)
        root2=(-b-math.sqrt(d))/(2*a)
        print('Roots are real and unequal')
        print('Root1=',root1,',Root2=',root2)
    elif d==0:
        root1=-b/2*a
        print('Roots are real and equal')
        print('Root1=', root1,',Root2=',root1)
    else:
        print('Roots are complex and imaginary')

OUTPUT:-




29. Write a program to print sum of natural numbers between 1 to 7. Print the sum progressively i.e. after adding each natural number, print sum so far.
Sum=0
for n in range(1,8):
    Sum+=n
    print('Sum of natural numbers <=',n,'is',Sum)

OUTPUT:-

30.Write a program to calculate the factorial of a number.
num=int(input('Enter a number:'))
fact=1
a=1
while a<=num:
    fact*=a
    a+=1
print('The factorial of',num,'is',fact)

OUTPUT:-



31. Write a program to create a triangle of stars using nested loop.
for i in range(1,6):
    print()
    for j in range(1,i):
        print('*',end=' ')

32.Write a Python script to print Fibonacci series’ first 20 elements.
first=0
second=1
print(first, end=' ')
print(second,end=' ')
for a in range(1,19):
    third=first+second
    print(third,end=' ')
    first,second=second,third


OUTPUT:-
33.Write a program to read an integer>1000 and reverse the number.
num=int(input('Enter a number (>1000):'))
tnum=num
reverse=0
while tnum>0:
    digit=tnum%10
    reverse=reverse*10+digit
    tnum=tnum//10
print('Reverse of',num,'is',reverse)

OUTPUT:-

34.Input three angles and determine if they form a triangle or not.
angle1=angle2=angle3=0
angle1=float(input('Enter the first angle:'))
angle2=float(input('Enter the second angle:'))
angle3=float(input('Enter the third angle:'))

if angle1+angle2+angle3==180:
    print('The angles form a triangle')
else:
    print('The angles do not form a triangle')
OUTPUT:-
35.Write a Python script that displays first ten Mersenne numbers.
print('First 10 Mersenne numbers are:')
for a in range(1,11):
    mersnum=2**a-1
    print(mersnum,end=' ')
print()


OUTPUT:-



36. Write a Python script that displays first ten Mersenne numbers and displays ‘Prime’ next to Mersenne Prime Numbers.
for a in range(1,21):
    mersnum=2**a-1
    mid=mersnum//2+1
    for b in range(2,mid):
        if mersnum%b==0:
            print(mersnum)
            break
    else:
            print(mersnum,'\tPrime')
OUTPUT:-
37.Write a program to calculate BMI and print the nutritional status as per following table:
Nutritional Status
WHO criteria BMI cut-off
Underweight
<18.5
Normal
18.5-24.9
Overweight
25-29.9
Obese
≥30

w=float(input('Enter the weight in kgs:'))
h=float(input('Enter the height in meters:'))
BMI=w/h**2
print('BMI is',BMI,end='')
if BMI<18.5:
    print('...Underweight')
elif BMI>=18.5 and BMI<24.9:
    print('...Normal')
elif BMI>=25 and BMI<29.9:
    print('...Overweight')
else:
    print('...Obese')



OUTPUT:-

38.Write python script to print following pattern.
          1
1                  3
1       3       5
1       3       5       7
for a in range(3,10,2):
    print()
    for b in range(1,a,2):
        print(b, end=' ')
    print()
OUTPUT:-
39.Write a program to find sum of series :
 s=1+x+x ²+x ³+x ⁴…+x
x=float(input('Enter the value of x:'))
n=int(input('Enter the value of n (for x**n):'))
s=0
for a in range(n+1):
    s+=x**a
print('Sum of first' ,n,'terms:',s)
OUTPUT:-


40.Write a python script to input two numbers and print their lcm and hcf.
x=int(input('Enter the first number:'))
y=int(input('Enter the second number:'))
if x>y:
    smaller=y
else:
    smaller=x
for i in range(1,smaller+1):
    if x%i==0 and y%i==0:
        hcf=i
lcm=(x*y)/hcf
print('The HCF of',x,'and',y,'is:',hcf)
print('The LCM of',x,'and',y,'is:',lcm)
OUTPUT:-
41.Write a python script to calculate the sum of the following series:
S=(1)+(1+2)+(1+2+3)+……+(1+2+3+….+n)
Sum=0
n=int(input('How many terms?'))
for a in range(2,n+2):
    term=0
    for b in range(1,a):
        term+=b
    print('Term',(a-1),':',term)
    Sum+=term
print('Sum of',n,'terms is:',Sum)
OUTPUT:-
42.Write a program to print the following using a single loop (no nested loops)
1
1       1
1       1       1
1       1       1       1
1       1       1       1       1
n=1
for a in range(5):
    print(n)
    print()
    n=n*10+1
OUTPUT :-
43.Write a program to print a pattern like:
4       3       2       1
4       3       2
4       3      
4      
for i in range(4):
    for j in range(4,i,-1):
        print(j,end=' ')
    else:
        print()

OUTPUT:-

44.Program that reads a line and print its statistics like:
Number of uppercase letters:
Number of lowercase letters:
Number of alphabets:
Number of digits:

line=input('Enter a line:')
lowercount=uppercount=0
digitcount=alphacount=0

for a in line:
    if a.islower():
        lowercount+=1
    elif a.isupper():
        uppercount+=1
    elif a.isdigit():
        digitcount+=1
    if a.isalpha():
        alphacount+=1

print('Number of uppercase letters are:',uppercount)
print('Number of lowercase letters are:',lowercount)
print('Number of alphabets are:',alphacount)
print('Number of digits are:',digitcount)

OUTPUT:-





             
45.Write a program that reads a line and a substring and displays the number of occurrences of the given substring in the line.
line=input('Enter line:')
sub=input('Enter substring:')
length=len(line)
lensub=len(sub)
start=count=0
end=length

while True:
    pos=line.find(sub,start,end)
    if pos!=-1:
        count+=1
        start=pos+lensub
    else:
        break
    if start>=length:
        break
print('No. of occurences of',sub,':',count)

OUTPUT:-






46.Write a program that takes a string with multiple words and then capitalizes the first letter of each word and forms a new string out of it.

string=input('Enter a string:')
length=len(string)
a=0
end=length
string2=''

while a<length:
    if a==0:
        string2+=string[0].upper()
        a+=1
    elif (string[a]==' ' and string[a+1]!=' '):
        string2+=string[a]
        string2+=string[a+1].upper()
        a+=2
    elif (string[a]==',' and string[a+1]!=','):
        string2+=string[a]
        string2+=string[a+1].upper()
        a+=2
    else:
        string2+=string[a]
        a+=1
print('Original string:',string)
print('Capitalized words string:',string2)
OUTPUT:-

              

47.Write a program that reads a string and checks whether it is a palindrome string or not.
string=input('Enter a string:')
length=len(string)
mid=length//2
rev=-1
for a in range(mid):
    if string[a]==string[rev]:
        print(string,'is a palindrome.')
        break
    else:
        print(string,'is not a palindrome.')
        break
   
 OUTPUT:-
48.Write a program that reads a string and displays the longest substring of the given string having just the consonants.
string=input('Enter a string:')
length=len(string)
maxlength=0
maxsub=''
sub=''
lensub=0
for a in range(length):
    if string[a] in 'aeiou' or string[a] in 'AEIOU':
        if lensub>maxlength:
            maxsub=sub
            maxlength=lensub
            sub=''
            lensub=0
    else:
        sub+=string[a]
        lensub=len(sub)
    a+=1
print('Maximum length consonant substring is:',maxsub,end=' ')
print('with',maxlength,'characters')
OUTPUT:-
49.Write a program that reads a string and then prints a string that capitalizes every other letter in the string.
string=input('Enter a string:')
length=len(string)
print('Original string:',string)
string2=''
for a in range(0,length,2):
    string2+=string[a]
    if a<length-1:
        string2+=string[a+1].upper()
print('Alternatively capitalized string:',string2)
OUTPUT:-
50.Write a program that reads the email id of a person in the form of a string and ensures that it belongs to domain @edupillar.com (Assumption: no invalid characters are there in email-id)
email=input('Enter your email id:')
domain='@edupillar.com'
ledo=len(domain)       #ledo=length of domain
lema=len(email)         #lema=length of email
sub=email[lema-ledo:]

if sub==domain:
    if ledo!=lema:
        print('It is valid email id')
    else:
        print('This is invalid email id- contains just the domain name')
else:
    print('This email-d is either not valid or belongs to some other domain')
OUTPUT:-