C++ Answers

Write a C++ program that prints on the screen following diamond shape with given series of numbers. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25.

C++ program that converts a decimal number to a binary, octal, and hexadecimal equivalents. First, the program will ask to fix a range for the lower and

upper limit in which the conversion is required. The lower limit should not be less than

0 and greater than the upper limit. For example, if you enter a negative number or

greater than the upper limit, then the program should print a message for the invalid

input and will ask you again to enter a decimal number within the range. If you

correctly specify the upper and lower limits, then the program will print a table of the

binary, octal and hexadecimal equivalents of the decimal numbers in the range of

lower limit through upper limit.

for while and do while loops must be used only once. anything else is not allowed to be used. functions can also be not used.

Example output:

Enter upper limit = 12

Enter lower limit = 30

Invalid.

Enter lower limit again = 10

Further table will be printed .

A number is called a happy number, if you start with the given number

and arrive at 1 by repeating the following process (as illustrated in the below example): (a)

compute the sum of the squares of given number digits (b) if the resultant value is 1, then

the number is happy number, else execute point (a) for the newly produced number.

Note that if a number is not a happy number, there will be an endless loop to this execution.

Goal: In this question, you are required to write C++ code that checks whether the number entered by the user is a happy number or not for 10 cycles/iterations only.

Example: Assume a number 19

Number Computation Result cycle/iterations

19 1^2 + 9^2 82 1

82 8^2 + 2^2 68 2

68 6^2 + 8^2 100 3

100 1^2 + 0^2 +0^2 1 4

Write a program to find the table of numbers using a while loop. Your program should ask the size of the table. That size defines the rows and columns. Sample output:

IT must be done using WHILE loop.

Enter size: 6

1 2 3 4 5 6

------------------------------------------

1* 1 2 3 4 5 6

2* 2 4 6 8 10 12

3* 3 6 9 12 15 18

4* 4 8 12 16 20 24

5* 5 10 15 20 25 30

6* 6 12 18 24 30 36

write A C++ program to display output using while loop only

+------+

| ^^ |

| ^ ^ |

|^  ^|

| ^^ |

| ^ ^ |

|^  ^|

+------+

|v  v|

| v v |

| vv |

|v  v|

| v v |

| vv |

+------+

Consider following basic structures to represent a rectangle. You can add more functions or members as per your need:

struct Rectangle {

int x;

int y;

int w;// width

int h; // height

};

1. Generate N number of rectangles with different sizes

2. Find the area of all generated rectangles and display them.

3. Sort rectangles based on their area.

4. Implement following method to return true of first rectangle is greater than the 2nd

rectangle:

bool compareRect(Rectangle r1,Rectangle r2)

5. Check which rectangles have the same area and display it.

6. Generate a random line. Find the number of rectangles that this line with.

A number is called a happy number, if you start with the given number

and arrive at 1 by repeating the following process (as illustrated in the below example): (a)

compute the sum of the squares of given number digits (b) if the resultant value is 1, then

the number is happy number, else execute point (a) for the newly produced number.

Note that if a number is not a happy number, there will be an endless loop to this execution.

Goal: In this question, you are required to write C++ code that checks whether the number

entered by the user is a happy number or not for 10 cycles/iterations only.

Example: Assume a number 19

Number Computation Result cycle/iterations

19 1

2 + 9

2 82 1

82 8

2 + 2

2 68 2

68 6

2 + 8

2 100 3

100 1

2 + 0

2 +0

2 1 4

Use nested while loop to print this shape

+----------+

| ^^ |

| ^ ^ |

| ^ ^ |

| ^^ |

| ^ ^ |

| ^ ^ |

+----------+

|v v|

| v v |

| vv |

|v v|

| v v |

| vv |

+----------+

Create classes as per below structure and add below functionalities

1. Add getter and setter member functions and display function in student, Test and sports

classes.

2. Result class only display all the data of Student, sports and test. and also calculate the total as

Total= marks of subject+ score for sports and display that also.