Basic of programming

{0.3 points} Task 1:

To do: Two integers are given. Check if the following statement is True: the first number is greater than the second (the program must return True if it is true, and False otherwise).

Expected output:

please enter two integers
>>> 23
>>> 1
23 is greater than 1 is True 

{0.3 points} Task 2:

To do: Two integers are entered. Check the truth of the statement: the first number is not equal to the second (the program must return True if it is true and False otherwise).

Expected output:

please enter two integers
>>>5 
>>>5
5 is not equal to 5 is False

{0.3 points} Task 3:

To do: Three integers are given: the values of variables A, B, C. Check the truth of the double inequality A < B < C. Make sure that your program is correct with at least two input data sets, give the log of the program in the form of a comment.

Expected output:

please enter three integers
>>>3 >>>6 >>>2
3 is less than 6 less than 2 is False
please enter three integers
>>>2 >>>5 >>>7
2 is less than 5 less than 7 is True

{0.6 point} Task 4:

To do: Three-digit integer is given. Check the truth: the first digit (left digit) of the number is less than the second (middle) and third (right).

Expected output:

please enter a three digit number
>>> 854
8 is less than 5 and 4 is : False

{0.6 point} Task 5:

To do: Two integers are entered. Check the truth of the statement: at least one of these numbers is odd.

Note: Use the odd standard function:

// The function odd returns True when its argument is odd integer:
print (odd(5)); // true 
print (odd(6)); // false

Check the following:

• -5, 8 => True
• 12, 0 => False
• 6, -1 => True
• 11, 7 => True

Expected output:

please enter two integer numbers
>>> 9 >>> 2
Either 9 or 2 is an odd number. This is : True

{0.3 points} Task 6:

To do: An integer is entered. If this is positive number, you should add 1 to it. Output the result.

Check the following:

• -3 => -3
• 0 => 0
• 1 => 2
• 5 => 6

Expected output:

please enter an integer number
>>> -77
The result is -77

{0.3 points} Task 7:

To do: An integer is given. If this is even number then multiply it by 10. Output the result.

Check the following:

• 2 => 20
• 1 => 1
• -10 => -100

Expected output:

please enter an integer number
>>> 8
The result is 80

{0.5 points} Task 8:

To do: An integer is given. If this is an even number, then multiply it by 3, if it is not even, then divide it by 3. Output.

Check the following:

• 4 => 12
• 9 => 3
• -10 => -30

Expected output:

please enter an integer number
>>> 12
The result is 36

{0.5 points} Task 9:

To do: An integer is given. If this is a positive number then add 1 to it; otherwise subtract it by 2. Output.

Check the following:

• -3 => -5
• 0 => 1
• 1 => 2
• 5 => 6

Expected output:

please enter an integer number
>>> 48
The result is 49

{0.5 points} Task 10:

To do: An integer is given (age of the person). If it is greater than or equal to 18, then output "you can watch this movie"; if the number is less than 10, then output "you should watch the cartoon". Otherwise, print "you can take a walk".

Expected output:

how old are you?
>>> 8
you should watch the cartoon
how old are you?
>>> 15
you can take a walk

{0.5 points} Task 11:

To do: The student received a grade. If it is 2 points, then the program should output "it's very bad"; if it is a 3 - program should print "it's bad"; if it is 4 - "it's good", in case of 5 - "it's excellent", otherwise - "there are no such marks".

Expected output:

what's your grade?
>>> 2
"it's very bad"
what's your grade?
>>> 4
"it's good"

{0.5 points} Task 12:

To do: The program must request the time of a day in hours (from 1 to 24). Depending on the time entered, display a message indicating what time of a day the entered hour belongs to (midnight (24), night (1-4), morning (5-11), day (12-16), evening (17-13)).

Expected output:

what's time of the day?
>>> 2
"night"
what's time of the day?
>>> 24
"midnight"

{0.5 points} Task 13:

To do: Two integer values are given (set them to variables A and B). Assign a sum of these values to each variable if their values are not equal; otherwise (if they are equal) assign zero to the variables. Output the new values of variables A and B.

Expected output:

please enter two integer numbers
 3 5
The result is A = 8, B = 8
please enter two integer numbers
4 4
The result is A = 0, B = 0 

{0.5 points} Task 14:

To do: An two-digit integer N is entered, |N| ∈ [10;99].

1. If it is even and divided by 4, then "add" 4 digit from the left (that is, to form a new number, which in the category of hundreds has 4, and the digits of tens and units are left as in the original number);
2. If it is even, but is not divided by 4, then "add" 2 digit from the left of the number;
3. If it is odd, then "add" 0 digit from the right of the number. Print the resulting number.

Expected output:

N: 
>>> 16 
result =  416
N: 
>>> 86
result = 286
N:
>>> 31
result = 310 

{0.5 points} Task 15:

To do: Integer number x is entered. Calculate the value of the function f:

f(x) = x + 4, if x ≥ 0
     f(x) = x - 4, if x < 0

Expected output:

Enter an integer: 
>>> 4
Result is 8

{0.5 points} Task 16:

To do: Real number x is entered. Calculate the value of the function f:

f(x) = 6 - x, if x ≤ 0
     f(x) = 2 sin(x), if x > 0

Expected output:

please, enter an x value: -2
result of 6-x =  8 
please, enter an x value: 5
result of 2sin(x) =  -1.91784854932628 

{0.5 points} Task 17:

To do: A three-digit integer a is entered. Print True if there is a permutation of digits that makes number which is divided by 10, and False otherwise (e.g. 602 => True [620, 260]).

Note: It is allowed to use no more than three operators div and mod (in total).

Expected output:

Enter three-digit integer:
>>> 602 
True 
Enter three-digit integer:
>>> 311 
False
Enter three-digit integer:
>>> -100
True

{0.3 points} Task 18:

To do: Perform the task using the Case statement. The student received a grade. If it is 2 points, then the program should output "it's very bad"; if it is a 3 - program should print "it's bad"; if it is 4 - "it's good", in case of 5 - "it's excellent", otherwise - "there are no such marks".

Expected output:

what's your grade?
>>> 2
"it's very bad"
what's your grade?
>>> 4
"it's good"

{0.3 points} Task 19:

To do: Perform the task using the Case statement. An integer in the range [1;7] is entered. Output a name of the day corresponding to this number (1 - “Monday”, 2 - “Tuesday”, etc.).

Expected output:

please enter an integer from 1-7, for day of the week
4
Thursday
please enter an integer from 1-7, for day of the week
9
such day does not exist

{0.3 points} Task 20:

To do: Perform the task using the Case statement. Arithmetic operations are numbered as follows: 1 - addition, 2 - subtraction, 3 - multiplication, 4 - division. Ask user to enter number - arithmetic operation (integer in the range of [1;4]) and two reals A and B (B is not = 0). Output the result of the specified arithmetic operation with the given numbers.

Expected output:

Enter arithmetic operation, please (from 1 till 4):
>>> 1  
Enter two real numbers:  
>>> 2.2  >>> 5.0 
the result is 2.2 + 5.0 = 7.2
Enter arithmetic operation, please (from 1 till 4):
>>> 2  
Enter two real numbers:
>>> 5.3  >>> 3.2 
the result is 5.3 - 3.2 = 2.5

{0.3 points} Task 21:

To do: Perform the task using the Case statement. Program requests to enter a number of the mass units (1 means kilogram, 2 means ounce, 3 - gram, 4 - ton, 5 - pound). Then the program requests body weight in one of these units. Output body weight in kilograms (1 ounce = 0.0283 kilograms, 1 gram = 0.0010 kilograms, 1 ton = 1000 kilograms, 1 pound = 0.4536 kilograms).

Expected output:

enter body weight 
>>> 4
enter mass 1..5 
>>> 4
in kilograms = 4000 

{0.5 points} Task 22:

To do: Perform the task using the Case statement. The commands are numbered as follows:

1. check if the number is negative;
2. check if the number is odd;
3. check if the number is the divided by entered number D (the number D is entered by the user when this command is selected).

Note: In response to entering an incorrect command, you should display the message "Command is unknown!".

Expected output:

N :
>>> -23 
C : 
>>> 1
True
N :
>>> 103
C :
>>> 3
D : 
>>> 7 
False

{0.2 points} Task 24:

To do: Perform the task using Case statement: The program must request the time of a day: midnight or night or morning or day or evening. The program must display a range of hours belonging to entered time of a day (midnight (24), night (1-4), morning (5-11), day (12-16), evening (17-23)).

Expected output:

enter the time of the day
>>> night
result: a range of hours for night is 1..4

{0.2 points} Task 25:

To do: Perform the task using Case statement with ranges: The program must request the time of day in hours (from 1 to 24). Depending on the time entered, display a message indicating what time of day the entered hour belongs to (midnight (24), night (1-4), morning (5-11), day (12-16), evening (17-13)).

Expected output:

Enter a time of a day in hours (from 1 to 24), please: 
>>> 14 
result: 14 hours belongs to day
Enter a time of a day in hours (from 1 to 24), please: 
>>> 24
result: 24 hours belongs to midnight

{0.2 points} Task 26:

To do: Perform the task using Case statement with ranges: The program must request number - the age. Depending on the entered number display a message indicating the age of person in words (infancy: from 0 to 1 year old, early childhood: 2-4 years old, preschool: 5-7 years old, school age: 8 - 12 years old, youth: 13-19 years old, second youth: 20–35 years old, adulthood: 36-65 years, old age: over than 66 years).

Expected output:

how old are you?
>>> 6 
preschool
how old are you?
>>> 37 
adulthood