1st PUC COMPUTER SCIENCE LAB PROGRAMS PDF | class 11 computer science lab manual | 1st puc computer science programs
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1. Write a program to swap two numbers
using a third variable.
a=int(input("Enter the value of a:"))
b=int(input("Enter the value of b:"))
print("Before swapping a=",a," and b=",b)
temp=a
a=b
b=temp
print("After swapping a=",a," and b=",b)
1.
2. Write a program to enter two
integers and perform all arithmetic operations on them.
a=int(input("Enter the value of a:"))
b=int(input("Enter the value of b:"))
sum=a+b
diff=a-b
prod=a*b
divi=int(a/b)
modulus=a%b
print("Addition=", sum)
print("Subtraction=",diff)
print("Multiplication=",prod)
print("Division=",divi)
print("Modulus=",modulus)
1.
3. Write a Python program to accept
length and width of a rectangle and compute its perimeter and area.
l=float(input("Enter the length of the rectangle:"))
w=float(input("Enter the width of the rectangle:"))
area=l*w
perimeter=2*(l+w)
print("Area of rectangle=",area)
print("Perimeter of rectangle=",perimeter)
4. Write a python program to calculate
the amount payable if money has been lent on simple interest. Principal or
money lent=P, Rate of interest =R% per annum and Time =T years. Then simple
interest (SI) =PxTxR/100. Amount payable=Principal+SI. P,R and T are given as
input to the program.
p=float(input("Enter the principal amount:"))
t=float(input("Enter the time:"))
r=float(input("Enter the rate of interest:"))
si=p*t*r/100
print("Simple Interest=",si)
1.
5. Write a program to find the largest
among three numbers.
a=float(input("Enter the value of a:"))
b=float(input("Enter the value of b:"))
c=float(input("Enter the value of c:"))
if(a>=b)and(a>=c):
large=a
elif(b>=a)and(b>=c):
large=b
else:
large=c
print("The largest number=",large)
6. Write a program that takes the name
and age of the user as input and displays a message whether the user is
eligible to apply for a driving license or not. (The eligible age is 18 years).
name=input("Enter your name: ")
age=int(input("Enter your age: "))
if age>=18:
print("Hello,
",name," ! You are eligible.")
else:
print("Sorry,
",name,". You are not eligible yet.")
7. Write a program that prints minimum and maximum of five numbers entered by the user.
small=0
large=0
for i in range(0,5):
a=int(input("Enter the
number "+str(i+1)+":"))
if i==0:
small=large=a
if(a<small):
small=a
if(a>large):
large=a
print("Smallest number=",small)
print("Largest number=",large)
Watch Explainer Video Here
8. Write a python program to find the
grade of a student when grades are allocated as given in the table below.
Above 90% A
80% to 90% B
70% to 80% C
60% to 70% D
Below 60% E
Percentage of the marks obtained by the student is input to the program.
p=float(input("Enter the percentage: "))
if(p>90):
print("Grade A")
elif(p>80):
print("Grade
B")
elif(p>70):
print("Grade
C")
elif(p>60):
print("Grade
D")
else:
print("Grade
E")
1.
9. Write a function to print the table
of a given number. The number has to be entered by the user.
a=int(input("Enter the number: "))
i=1
while i<=10:
b=a*i
print(a,'x',i,'=',b)
i=i+1
1.
10. Write a program to find the sum of
digits of an integer number, input by the user.
n=int(input("Enter the number: "))
sum=0
while n>0:
rem=n%10
sum=sum+rem
n=n//10
print("The sum of digits=",sum)
1.
11. Write a program to check whether an
input number is a palindrome or not.
n=int(input("Enter a number: "))
temp=n
rev=0
while(n>0):
digit=n%10
rev=rev*10+digit
n=n//10
if(temp==rev):
print("It is a
palindrome")
else:
print("It is not
a palindrome")
1.
12. Write a program to print the
following patterns:
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
n=int(input("Enter the number of rows: "))
for i in range(n,0,-1):
for j in range(1,i+1):
print(j,end=' ')
print()
1.
13. Write a program that uses a user
defined function that accepts name and gender (as M for male, F for Female) and
prefixes Mr./Ms. Based on the gender.
def student(name,gender):
if(gender=='M' or
gender=='m'):
print('Mr.',name)
elif(gender=='F' or
gender=='f'):
print('Ms.',name)
else:
print("Please
enter only M or F in gender")
name=input("Enter the name: ")
gender=input("Enter the gender M for Male and F for Female: ")
student(name,gender)
1.
14. Write a program that has a user
defined function in accept the coefficients of a quadratic equation in
variables and calculates its determinant. For example : if the coefficients are
stored in the variables a,b,c then calculate determinant as b2 –
4ac. Write the appropriate condition to check determinants on positive, zero
and negative and output appropriate result.
a=int(input("Enter the value of a: "))
b=int(input("Enter the value of b: "))
c=int(input("Enter the value of c: "))
def disc(a,b,c):
d=b**2-4*a*c
return d
det=disc(a,b,c)
if(det>0):
print("The roots
are real and different")
elif(det==0):
print("The roots
are real and equal")
else:
print("The roots
are imaginary")
1.
15. Write a program that has a user
defined function to accept 2 numbers as parameters, if number is less than number 2 then numbers are
swapped and returned, i.e., number 2 is returned in place of number 1 and
number 1 is reformed in place of number 2, otherwise the same order is returned.
def swap(a,b):
if(a<b):
return
b,a
else:
return
a,b
a=int(input("Enter the value of a: "))
b=int(input("Enter the value of b: "))
print("Before swapping a=",a," and b=",b)
a,b=swap(a,b)
print("After swapping a=",a," and b=",b)
Watch Explainer Video Here
%20of%20text%20from%20the%20user%20until%20enter%20is%20pressed.png "16. Write a program to input line(s) of text from the user until enter is pressed")
s1=s.title()
print("The input string
in title case is:",s1)
name=input("Enter the string:")
space=0
for b in name:
if b.isspace():
space+=1
if name.istitle():
print("The string is
already in title case")
elif space>0:
student(name)
else:
print("The string is in
one word")
18. Write a function that takes a sentence as an input parameter where each word in the sentence is separated by a space. The function should replace each blank with a hyphen and then return the modified sentence.
return s.replace(' ','-')
s1=input("Enter the sentence:")
s2=replace1(s1)
print("The modified sentence=",s2)
19. Write a program to fund the number of times an element occurs in the list.
list=[10,20,10,40,50,30,10,10,50]
print("Elements in the list are:",list)
a=int(input("Enter the number to check how many times the element
occurs in the list:"))
b=list.count(a)
print("An element ",a," is present ",b,"
times")
20. Write a function that returns the largest element of the list passed as parameter.
n=0
for i in range(len(list)):
if(i==0 or list[i]>n):
n=list[i]
return n
list=[10,20,30,40,50,60,70,80,90,100]
max=large(list)
print("The elemtns of the list are:",list)
21. Write a program to read a list of elements. Modify this list so that it does not contain any duplicate elements, i.e. all elements occurring multiple times in the list should appear only once.
newlist=[]
for a in range(len(list)):
if list[a] not in newlist:
newlist.append(list[a])
return newlist
list=[]
n=int(input("How many elements?"))
print("Enter the elements:")
for i in range(n):
a=int(input())
list.append(a)
print("The numbers in list:",list)
print("List without duplicate elements is:",dup(list))
22. Write a program to read email IDs of n number of students and store them in a tuple. Create two new tuples, one to store only the usernames from the email IDs and second to store domain names from the email IDs. Print all three tuples at the end of the program. [Hint: You may use the function split()]
email=tuple()
username=tuple()
domainname=tuple()
n=int(input("How
many valid email IDs you want to enter? "))
for i in
range(n):
eid=input("Please enter email id"+str(i+1)+": ")
email+=(eid,)
e=eid.split("@")
username=username+(e[0],)
domainname=domainname+(e[1],)
print("The
IDs in the tuple:",email)
print("The
username of email ids are: ",username)
print("The domain
name of email ids are: ",domainname)
23. Write a program to input names of n students and store them in a tuple. Also, input a name from the user and find if this student is present in the tuple or not.
name=tuple()
n=int(input("How many names do you want to
enter?"))
for i in range(n):
num=input("Enter the name"+str(i+1)+": ")
name=name+(num,)
print("Names entered are:",name)
search=input("Enter the name to be searched:
")
if search in name:
print("Name",search,"is present")
else:
print("Name",search,"is not present")
24. Write a program to create a dictionary from a string. Note: Track the count of the letters from the string. Sample string : ‘2nd pu course’. Expected output : {‘ ‘:2,’2’:1,’n’:1,’d’:1,’o’:1,’p’:1.’u’:2,’c’:1,’s’:1,’r’:1.’e’:1}
s="2nd pu course"
print("The input string is:",s)
s1=dict()
for character in s:
if
character in s1:
s1[character]+=1
else:
s1[character]=1
print("The dictionary created from characters of the
string is:",s1)
Reviewed by Vision Academy
on
October 21, 2022
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