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Level 1
Language Features
# Q1 ✅ The sequence of instructions (in the form of source code) written in a computer programming language is called a computer program.# Q2 ✅ The Python programming language evolved through many versions.
# Q3 ✅ Python source code is written and saved in a file with .py extension.
# Q4
print("Python is Easy")(code-box)
# Q5
print("Python is not Typhoon")(code-box)
# Q6
print("Abracadabra"*7)(code-box)
# Q7
print("where", "the" "re", "is", "a", "will,", "there", "is", "a", "way")(code-box)
# Q8 ✅ Python is an interpreted language.
✅ A Python program can execute C and C++ programs also.
✅ A Python program written on Windows operating system will also execute on Linux operating system as it is portable.
Level 2
Comments
# Q1# This is my first program print("I am a Python Guru") # print("Python is not cool") # print() is used to print the message on console (code-box)
# Q2
print("1") # print("2") print("3") # print("4") print("5") # print("6") print("7") # print("8") print("9") # print("10") print("11") # print("12") print("13")(code-box)
# Q3
def add(a, b): """Return sum of given arguments.""" return a + b def power(b, e): """Return the power value. b -- is the base e -- is the exponent """ return b ** e print(add.__doc__) print(power.__doc__)(code-box)
Identifiers and Keywords
# Q1 ✅ Identifiers are used for identifying entities in a program.✅ string_1 is valid identifier.
✅ Identifiers can be of any length.
# Q2 ✅ Python version 3.5 has 33 keywords.
✅ The keyword nonlocal does not exist in Python 2.
✅ Interpreter raises an error when you try to use keyword as a name of an entity.
# Q3
import keyword print('and is a keyword :', keyword.iskeyword('and')) #Fill in the missing code in the below lines print('exec is a keyword :', keyword.iskeyword('exec')) print('nonlocal is a keyword :', keyword.iskeyword('nonlocal')) print('False is a keyword :',keyword.iskeyword('False') ) (code-box)
Level 3
Variable and Assignment
# Q1snake= "King Cobra" length=18 print(snake, "can grow up to a length of", length, "feet")(code-box)
# Q2
value1 = value2 = value3 = "Hello" print(value1) print(value2) print(value3) # Assign values to variables and print again value1=99 value2="Hello Python" value3="Hello World" print(value1) print(value2) print(value3) (code-box)
# Q3
kilometers = int(input("Enter a value: ")) # assign the correct value convertfactor = 0.621371 # assign the correct value miles = (kilometers) * (convertfactor)# multiply kilometers and convertfactor print("Miles:",miles) (code-box)
# Q4
q=999 w=24.789 e="Python Interpreter" print(q) print(w) print(e) (code-box)
# Q5
str = input("Enter a value: ") a=b=c= str print("Value of a:",a) print("Value of b:",b) print("Value of c:",c) (code-box)
Level 4
Indentation
# Q1if 100.0 > 10.0: print("Small Value:", 10.0) else: print("Large Value:", 100.0) (code-box)
# Q2
print("Hello Python") (code-box)
Understanding Expressions
# Q1if 100.0 > 10.0: print("Small Value:", 10.0) else: print("Large Value:", 100.0) (code-box)
# Q2
print("Hello Python") (code-box)
Level 5
Different Data Types
# Q1 ✅ In Python, we need not specify the data type of the variable.✅ type() function in Python is used to know which datatype of value the variable holds.
Numbers
# Q1a = 365 print (type(a)) a = 345.65 print (type(a)) a = 45 + 5j print(type(a)) (code-box)
Strings
# Q1 ✅ Encoding means converting strings of characters into numbers.Level 6
Lists
# Q1list1 = [1.0, 2.3, "hello"] list2 = ["hi", 8.3, 9.6, "how"] print("List1 Elements are:", list1); print("List2 Elements are:",list2) print("List after Concatenation:",list1+list2) (code-box)
# Q2
list1 = ["hi", "hello", "Lists"] print(list1[0]);print(list1[1]);print(list1[2]) list1[2] = "Python" print(list1) list1.append('Code is Life') print(list1) list1.extend([45, 67, 89]) print(list1) (code-box)
Sets
# Q1 ✅ A set is represented using curly braces { } .Tuples
# Q1 ✅ tuples are immutable.✅ Converting a tuple into a list and list into tuple is possible.
# Q2
mytuple = ("this", 10.0, "is", "float", 3.6) # Print value at index 0 print(mytuple[0]) # Print value at index 1 print(mytuple[1]) # Print value at index -1 print(mytuple[-1]) # Print all the values from index 0 print(mytuple) # Print all the values except the last value mytuple=mytuple[:-1] print(mytuple) mytuple=(3.6,"float","is",10.0,"this") print(mytuple) (code-box)
# Q3
mytuple = ("i", "love", "python") print("Given Tuple:",mytuple) list1=list(mytuple) print("After Converting Tuple into List:",list1) list1[1]="practice" print("List after changing element:",list1) mytuple=tuple(list1) print("After Converting List into Tuple:",mytuple) (code-box)
Level 7
Dictionaries
# Q1 ✅ Dictionary is a Python data type to store multiple values.✅ Keys of the dictionary cannot be changed.
# Q2
mydict = {"name":"Rama", "branch":"CSE", "place":"HYD"} print(mydict["name"]) print(mydict["branch"]) print(mydict["place"]) (code-box)
# Q3
mydict = {"game":"chess","dish":"chicken","place":"home"} print(mydict.get("game")) print(mydict.get('dish')) print(mydict.get("place")) mydict["game"] = "cricket" # change game chess to cricket using respective key print(mydict['game']) (code-box)
Data Type Conversions
# Q1a = int(input("Enter a value: ")) b = int(input("Enter b value: ")) # print a value respective string print(str(a)) # print a value respective char print(chr(a)) # print a value respective hexadecimal value print(hex(a)) # print a and b of complex number print(complex(a,b)) (code-box)
# Q2
list1 = ["key1","key2","key3"] list2 = ["value1","value2","value3"] print(list1) print(list2) mydict = zip(list1,list2) # using zip() function we can create dictionary with two lists(one list for keys and one list for values) set1=set(mydict) # convert dictionary into set using set() method # print elements in sorted order print(sorted(set1)) (code-box)
Level 8
Input and Output Statements
# Q1place = input("Enter your favourite place: ") # Print your favourite place print("My favourite place is:",place) (code-box)# Q2
lang = input("Enter Language: ") print("My Favourite Language is",lang) (code-box)
# Q3
name = "Pretty" branch = "CSE" score = "10" print("Hello", name,"your branch is", branch,"and your score is", score) (code-box)# Q4
# Take an integer input from the user and store it in variable "a" a=input("a: ") # Take an integer input from the user and store it in variable "b" b=input("b: ") # print "a" value at 0 index and "b" value at 1 index print("The value of a = {0}, b = {1} ".format(a,b)) # print by changing the index postions of "a" and "b" and observe the output print("The value of a = {1}, b = {0} ".format(a,b)) (code-box)
# Q5
# take float number from the user a=input("a: ") # print up to 2 decimal points print("{0:.2f}".format(int(a))) # print up to 6 decimal points print("{0:.6f}".format(int(a))) # take int number from the user b=input("Enter b value: ") # print the number with one space print("%d"%(int(b))) # print the number with two spaces print("%2d"%(int(b))) # print the number with three spaces print("%3d"%(int(b))) # print the given number b in octal form print("octal:",oct(int(b))[2:]) # print the given input b in hexadecimal form print("hex:",hex(int(b)).upper()[2:]) (code-box)
Basics of Python Programming
# Q1 ✅ Python is used by most of the top companies.✅ By using Python we can implement GUI.
✅ Python is a cross platform language.
# Q2 ✅ Compiler takes entire block of code as a single unit to check and identify the errors in program.
Level 9
Arithmetic Operators
# Q1 ✅ Python supports 7 arithmetic operators.✅ An exponent operator is represented by ** in Python.
✅ // is called as Floor division operator.
# Q2
#Arithmetic Operators are +, -, *, /, **, %, // num1 = int(input("num1: ")) num2 = int(input("num2: ")) print("%d + %d = %d" % (num1,num2,num1+num2)) print("%d - %d = %d" % (num1,num2,num1-num2)) print("%d * %d = %d" % (num1,num2,num1*num2)) print("{} / {} =".format(num1,num2),num1/num2) print("%d ** %d = %d" % (num1,num2,num1**num2 )) print("{} % {} =".format(num1,num2),num1%num2) print("%d // %d = %d" % (num1,num2,num1//num2)) (code-box)
# Q3
n1 = int(input ("num1: ")) n2 = int(input ("num2: ")) print("Addition of",n1,"and",n2,"=",n1+n2) print("Subtraction of",n1,"and",n2,"=",n1-n2) print("Multiplication of",n1,"and",n2,"=",n1*n2) print("Division of",n1,"and",n2,"=",n1/n2) (code-box)
# Q4
n1 = int(input("num1: ")) n2 = int(input("num2: ")) print("Exponent of",n1,"with",n2,"=",n1**n2) print("Modulus of",n1,"and",n2,"=",n1%n2) print("Floor Division of",n1,"and",n2,"=",n1//n2) (code-box)
# Q5
n=int(input("num1: ")) m=int(input("num2: ")) print("Exponent of",n,"with",m,"=",n**m) print("Modulus of",n,"and",m,"=",n%m) print('Floor Division of',n,"and",m,"=",n//m) (code-box)
# Q6
a=int(input("num1: ")) b=int(input("num2: ")) print(a,"//",b,"=",a//b) print(a,"%",b,"=",a%b) (code-box)
Comparison Operators
# Q1n1 = int(input("num1: ")) n2 = int(input("num2: ")) print("Is",n1,"greater than",n2,"=",n1>n2) print("Is",n1,"less than",n2,"=",n1<n2) print("Is",n1,"equal to",n2,"=",n1==n2) print("Is",n1,"not equal to",n2,"=",n1!=n2) print("Is",n1,"less than or equal to",n2,"=",n1<=n2) print("Is",n1,"greater than or equal to",n2,"=",n1>=n2) (code-box)
# Q2
n1 = int(input ("num1: ")) n2 = int (input ("num2: ")) print("Is", n1, "greater than", n2, "=", n1>n2) print("Is", n1, "less than", n2, "=", n1<n2) print("Is", n1, "equal to", n2, "=", n1==n2) print("Is", n1, "not equal to",n2,"=",n1!=n2) print("Is", n1, "greater than or equal to",n2,"=", n1>=n2) print("Is",n1,"less than or equal to",n2,"=",n1<=n2) (code-box)
# Q3
m=input('str1: ') n=input('str2: ') print('Is',m,'greater than',n,"=",(m>n)) print('Is',m,'less than',n,"=",m<n) print("Is",m,"equal to",n,"=",m==n) print("Is",m,"not equal to",n,"=",(m)!=(n)) print("Is",m,"greater than or equal to",n,"=",m>=n) print("Is",m,"less than or equal to",n,"=",m<=n) (code-box)
# Q4
m=input('str1: ') n=input('str2: ') print('Is',m,'greater than',n,"=",(m>n)) print('Is',m,'less than',n,"=",m<n) print("Is",m,"equal to",n,"=",m==n) print("Is",m,"not equal to",n,"=",m!=n) print("Is",m,"greater than or equal to",n,"=",m>=n) print("Is",m,"less than or equal to",n,"=",m<=n) (code-box)
Level 10
Assignment Operators
## Q1```python n=int(input("x: ")) m=int(input("y: ")) a=n b=m n+=m print("x += y: x =",n,"and y =",m) n,m=a,b n-=m print("x -= y: x =",n,"and y =",m) n,m=a,b n*=m print("x *= y: x =",n, "and y =",m) n,m=a,b n=n/m print("x /= y: x =",n, "and y =",m) n,m=a,b n=n**m print("x **= y: x =",n, "and y =",m) n,m=a,b n=n//m print("x //= y: x =",n, "and y =",m) n,m=a,b n=n%m print("x %= y: x =",n, "and y =",m) n=m print("x = y: x =",n, "and y =",m) (code-box)
## Q2
# Assignment Operators =, +=, -=, *= n=int(input("x: ")) m=int(input("y: ")) a=n b=m n=m print("x = y:",n) n,m=a,b n+=m print("x += y:",n) n,m=a,b n-=m print("x -= y:",n) n,m=a,b n*=m print("x *= y:",n) (code-box)
## Q3
# Assignment Operators /= , %=, **=, //= n = int(input("x: ")) m = int(input("y: ")) a=n b=m n/=m print('x /= y:' , n) n,m=a,b n%=m print ('x %= y:' , n) n,m=a,b n**=m print ('x **= y:' , n) n,m=a,b n//=m print ('x //= y:' , n)(code-box)
Comparison Operators
## Q1 ✅ In (NOT) ~ Bits that are 0 become 1, and those that are 1 become 0. ## Q2#Program to illustrate bit wise operators >>, << n=int(input("x: ")) m=int(input("y: ")) x=n>>m print(n,">>",m,"is",x) y=n<<m print(n,"<<",m,"is",y) (code-box)
## Q3
#Program to illustrate the bitwise operators &, | x=int(input("x: ")) y=int(input("y: ")) print("{} & {}:".format(x,y),x&y) print("{} | {}:".format(x,y),x|y) (code-box)
## Q4 ✅ One's complement converts 0's into 1's and 1's into 0's.
✅ One's complement of the short int value 2 is 11111101.
## Q5
#Program to illustrate bitwise operators ~, ^ x=int(input("x: ")) y=int(input("y: ")) print("~ {}:".format(x),~x) print("{} ^ {}:".format(x,y),x^y) (code-box)
## Q6
x=int(input("x: ")) y=int(input("y: ")) print("{} >> {} is".format(x,y),x>>y) print("{} << {} is".format(x,y),x<<y) print("{} & {} is".format(x,y),x&y) print("{} | {} is".format(x,y),x|y) print('~ {} is'.format(x),~x) print("{} ^ {} is".format(x,y),x^y) (code-box)
## Q7
x=int(input("num1: ")) y=int(input("num2: ")) c=((-y)+x) print("difference:",c) (code-box)
Level 11
Logical Operators
Q1 ✅ In logical and the result is true if the both operands are true.Q2
x=input("M or F: ") y=int(input("age: ")) if (x=="M") and y>=65: print("Eligible for Concession") elif (x=="F") and y>=60: print("Eligible for Concession") else: print("Not Eligible for Concession")(code-box)
Q3
# write your code here x=int(input("a: ")) y=int(input("b: ")) z=int(input("c: ")) if (x==y==6) and z!=6: print("True") else: print("False")(code-box)
Q4
# Program to illustrate logical and a = int(input("a: ")) b = int(input("b: ")) if(a==6 or b==6 or a+b==6 or a-b==6): print("True") else: print("False")(code-box)
Q5
# Program to illustrate logical not x=input("Enter day: ") if not(x=="SAT" or x=="SUN"): print("Not Weekend") else: print("Weekend")(code-box)
Membership Operators
Q1 ✅ in and not in operators check the existence of a member in a collection.✅ if in operator returns False, not in operator will return True.
✅ An empty string is part of every other string.
Q2
x=input("str1: ") y=input("str2: ") print(y,"in",x,":",y in x)(code-box)
Q3
#Program to illustrate in and not in for strings x=input("str1: ") y=input("str2: ") print(y,"in",x,"is:",y in x) print(y,"not in",x,"is:",y not in x)(code-box)
Q4
# Program to illustrate membership L1 = ['A', '123', 'Ramana', [1, 2], 34.56, '55'] # for 34.56 returns False as output because input() return type is True so it converts 34.56 as string. # write your code here print(L1) x=input("element: ") print(x,"in",L1,"is:",x in L1) print(x,"not in",L1,"is:",x not in L1)(code-box)
Level 12
Identity Operators
Q1 ⦿ id(object) is unique and Constant for an object during its lifetime.Q2
x=int(input("Enter an integer: ")) y=int(input("Enter the same integer: ")) print("x is y",x is y) print("x is not y",x is not y) a=float(input("Enter a Float Number: ")) b=float(input("Enter the same Number: ")) print("x is y",a is b) print("x is not y",a is not b)(code-box)
Q3
x=int(input("x: ")) y=int(input("y: ")) print("{} is {}".format(x,y),x is y)(code-box)
Q4
x=int(input("x: ")) y=int(input("y: ")) print("{} is {}".format(x,y),x is not y) Operators Precedence(code-box)
Q1 ✅ Operator precedence is performed based on priority of an operator.
✅ Associativity is used when two operators of same precedence are in the same expression.
Q2 No Any Question.
Q3
a=int(input("a: ")) b=int(input("b: ")) print("{} + {} * 5 =".format(a,b),a+b*5) print("{} + {} * 6 / 2 =".format(a,b),a+b*6/2)(code-box)
Q4
a=int(input("a: ")) b=int(input("b: ")) print("{} + {} * 5 =".format(a,b),a+b*5) print("{} + {} * 5 * 10 / 2 =".format(a,b),a+b*5*10/2)(code-box)
Q5
a=int(input("a: ")) b=int(input("b: ")) c=int(input("c: ")) print("a and b or c".format(a,b,c),a and b or c) print("a or b and c".format(a,b,c),a or b and c)(code-box)
Q6
a=int(input("a: ")) b=int(input("b: ")) c=int(input("c: ")) print("{} and {} and {} or {} is".format(a,b,c,a),a and b and c or a) print("{} or {} and {} and {} is".format(a,b,c,a),a or b and c and a)(code-box)
Level 13
Practise Programs
Q1x=int(input(("kg: "))) lb=2.2*x print("lb:",lb)(code-box)
Q2
c=float(input("temp in celsius: ")) f=1.8*c+32 print("temp in fahrenheit is",f)(code-box)
Q3
a=int(input("a: ")) b=int(input("b: ")) print("{} + {} =".format(a,b),a+b) print("{} - {} =".format(a,b),a-b) print("{} * {} =".format(a,b),a*b) print("{} / {} =".format(a,b),a/b) print("{} ** {} =".format(a,b),a**b) print("{} % {} =".format(a,b),a%b) print("{} // {} =".format(a,b),a//b)(code-box)
Level 14
Introduction to Algorithms
Q1✅ Problem solving is a systematic approach to define and solve a problem.
◻︎ The order to solve a problem is to first provide the solution followed by the problem definition.
✅ Few techniques are required to solve a particular problem which help in deriving a logic to solve the problem.
◻︎ Algorithms, Flowcharts, Pie Charts are some of the techniques of problem solving.
✅ Algorithms,Flowcharts, Pseudo Code and Programs are the techniques used to solve a problem.
Q2
◻︎ Algorithm means a mathematical formula.
✅ It is very easy to write the code in any programming language after developing an algorithm for that problem.
◻︎ Only one algorithm can be written for any problem.
✅ After a finite number of steps an algorithm must reach an end state.
Q3
◻︎ The more time an algorithm takes to execute, the better is the algorithm.
✅ The lesser memory a program takes to execute, better is the algorithm.
◻︎ Only one algorithm can be written for any problem and is the only preferred way.
◻︎ The quality of an algorithm is determined by the person who wrote it.
Q4
miles = int(input("miles: ")) if (miles > 0): print("kilometers:",miles*1.609) # convert the given miles into kilometers and print the result else: print("not positive value")(code-box)
Q5
t=input("temp with unit: ") g=t[0:-1] n=int(g) x=t[-1:] s=['c','C','f','F'] if x in s: if (x=='c')or (x=='C'): a=n*9/5+32 y=round(a,2) print(n,"C =",y,"F") else: b=(5/9)*(n-32) z=round(b,2) print(n,"F =",z,"C") else: print("unrecognized unit:",x)(code-box)
Level 15
Building Blocks of Algorithms
Q1◻︎ Selection, Sequence are the only building blocks of constructing an algorithm.
◻︎ A statement is a collection of instructions corresponding to multiple actions.
✅ Input to a computer, processing the input and showing the processed result as output are examples of a statement.
✅ Execution of individual statements in a given order is called control flow.
✅ In selection statement, the program control is transferred to a part of the program based on a condition.
✅ A function causes the control to be passed to block of code when referenced using its name.
Q2
num1 = int(input("num1: ")) num2 = int(input("num2: ")) sum = num1 + num2 print("sum of %d, %d = %d" %(num1, num2, sum))(code-box)
Q3
n=int(input("age: ")) if n>=0: if n>17: print("eligible") else: print("not eligible") else: print("age cannot be negative")(code-box)
Q4
nvalues=int(input("n: ")) if(nvalues>0 and nvalues<51): for i in range(1, nvalues + 1): print(i,end=" ") else: print("enter valid value")(code-box)
Q5
n1=int(input('num1: ')) n2=int(input('num2: ')) def add2Num(): # c=n1+n2 print("The sum of {} and {} is".format(n1,n2),n1+n2) add2Num() # caling the function add2Num(code-box)
Level 16
Pseudo Code
Q1◻︎ Programs written in pseudo code can be compiled and executed.
✅ Pseudo code has no standards but guidelines exist.
◻︎ You should know programming language to write pseudo code.
◻︎ Multi line iterations cannot be represented in pseudo code.
Q2
◻︎ In an if-else condition, the else part gets executed if the condition is true.
✅ In the For-loop the condition is evaluated for each iteration of the loop.
◻︎ The While loop is executed only when the condition is false.
✅ In the While loop, the condition is evaluated for each iteration of the loop.
Q3
n=int(input("num: ")) sum=0 s=n if n>0: while n>0: sum=sum+n n=n-1 print("sum:",sum) else: print("enter positive value")(code-box)
Q4
◻︎ The advantage of Pseudo code is that it is ambiguous and uncertain.
✅ Pseudo code can be translated to high level languages.
◻︎ Pseudo code by nature is structured and expressive.
✅ Pseudo code can easilly understand by the programmers and users.
Flow Charts
Q1
✅ Diamond shaped symbol is used in the flowcharts to indicate a decision (or branching).
✅ A flowchart is a pictorial representation of an algorithm.
✅ An algorithm and a flowchart can help us to clearly specify the sequence of steps to solve a given problem.
◻︎ A flowchart gives us a clear overview of the program but not the solution
Q2
# write your code here r=float(input("Enter the radius : ")) if r>=0: a=3.14*r*r print("Area of circle = %f"%a) else: print("Enter a positive value upto 100")(code-box)
Q3
✅ Flow charts help in understanding the logic of a program.
✅ Flowcharts help in debugging process.
◻︎ Flowcharts may become complex and clumsy for simple problems.
✅ A lot of time is needed for drawing flow charts for large projects.
