#include #include #include #include using namespace std;int main (){ const double PI = 3.14159265359; return 0;} • The radius and the length of a polygonside must be positive; otherwise, theprogram outputs invalid.• For any other wrong input, theprogram outputs invalid.• The result must only keep the first twodecimal digits with rounding.• Circumference and perimeter meanthe same thing.• Do not add any cout statementsexcept for the final answer as specifiedabove.• Do not add "Enter a number", or anysimilar prompts.• Also note that the automatic grader iscase-sensitive; so "Invalid" is wrongbut "invalid' is correct.• You may add any librarles needed.I/0Program Input:•A single line that takes in a string valueto determine which shape to calculatethe circumference for.• A single line that takes in the numberof polygon sides• A single line that depending on thecase takes in either the circle radius orthe polygon side length.Program Output:• A single line that outputs either thecircumference of the circle or thepolygon perimeter rounded to thnearest two digits.Sample Testcase 0:Input:CC61.5Output:8.16Sample Testcase 1:Input:PP93Output:18.47Sample Testcase 2:Input:PP310Output:invalid In this exercise, we will either have a circle insidea polygon for which we will calculate thecircumference, or we shall have a polygon insidea circle for which we will calculate its perimeter(circumference).You are required to write a program that acceptsone of two strings:• "CC" which refers to the case CircleCircumference.• "PP" which refers to the case PolygonPerimeter.If the user chooses CC, then the program waitsfor the user to input the number of sides of thepolygon first, then the length of one of its sides. Itoutputs the circumference of the largest circlethat can fit inside this polygon.If the user chooses PP, then the program waitsfor the user to input the number of sides of thepolygon first, then the radius of the circle, Itoutputs the circumference of the largest polygonthat fits inside the circle.BBA circle inside a hexagon (polygon with 6 sides)An octagon (polygon with 8 sides) inside a circleHint: To solve this program, it might be easier todivide the polygon into triangles all connected atthe center. This way, as you already know thenumber of sides of the polygon, you can derivethe angles, and use basic geometry andtrigonometry to solve this question.IMPORTANT NOTE• The circle and the polygon share thesame center.• At all times, the sides of the circle andpolygon touch each other,• The number of polygon sides mustnever be less than five; otherwise, theprogram outputs invalid.• The radius and the length of a polygonside must be positive; otherwise, theprogram outputs invalid.

Name: #include #include #include #include using namespace std;int main (){
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Description: #include #include #include #include using namespace std;int main (){ const double PI = 3.14159265359; return 0;} • The radius and the length of a polygonside must be positive; otherwise, theprogram outputs invalid.• For any other wrong input, t

The question is to find C++ code for the given problem.

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Computer Science

polygon side must be positive; otherwise, the program outputs invalid. • For any other wrong input, the program outputs invalid. • The result must only keep the first two decimal digits with rounding. • Crcumference and perimeter mean the same thing. • Do not add any cout statements except for the final answer as specified above. • Do not add "Enter a number", or any similar prompts. • Also note that the automatic grader is case-sensitive; so "Invalid" is wrong but "invalid" is correct. • You may add any librarles needed. vo Program Input: • A single line that takes in a string value to determine which shape to calculate the circumference for. • A single line that takes in the number of polygon sides •Asingle line that depending on the case takes in either the circle radius or the polygon side length. Program Output: •Asingle line that outputs either the circumference of the circle or the polygon perimeter rounded to th nearest two digits. Sample Testcase 0:

polygon side must be positive; otherwise, the program outputs invalid. • For any other wrong input, the program outputs invalid. • The result must only keep the first two decimal digits with rounding. • Crcumference and perimeter mean the same thing. • Do not add any cout statements except for the final answer as specified above. • Do not add "Enter a number", or any similar prompts. • Also note that the automatic grader is case-sensitive; so "Invalid" is wrong but "invalid" is correct. • You may add any librarles needed. vo Program Input: • A single line that takes in a string value to determine which shape to calculate the circumference for. • A single line that takes in the number of polygon sides •Asingle line that depending on the case takes in either the circle radius or the polygon side length. Program Output: •Asingle line that outputs either the circumference of the circle or the polygon perimeter rounded to th nearest two digits. Sample Testcase 0:

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Prompt the user to enter a string of their choosing. Store the text in a string. Output the string.Ex: Enter a sample text: We'll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here; our hopes and our journeys continue! You entered: We'll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here; our hopes and our journeys continue!
This code must be in Python: START OF PLAY The player starts with 100 points. They have ten attempts (or rounds) to reach 500 points to win. Each round, the player "bets" some amount of points. See gameplay as follows: A HIGH/LOW ROUND (1) The player is shown an initial random card.Cards have a value from 2-14; however, these values are converted to a string as follows: 2-9 are converted to their string equivalent "2", "3", ... "9"10 is "T", 11 is "J", 12 is "Q", 13 is "K" and 14 is "A" (2) After the play sees the first card, they should guess if the next card will be higher (i.e., greater than the current card) or lower (i.e., a lower value than the first card).They will do this by inputting "H" or "L" (lowercase "h" and "l" will also be accepted as valid input). (3) After they input their "high" or "low" guess, the player bets a number of points that their guess will be right. The bet must be between 1 and the total amount of points the player has.1 (4) After the bet amount is…
Your program will prompt the user for the following information: current population number of yearly births from the previous year number of yearly deaths from the previous year number of years into the future for your predictive value of the future population. You will then compute the following: birth rate death rate growth rate the predicted future population Assignment Notes: To allow the user to input the numeric data (such as current population) it is necessary to use the input function. The input function takes a string in parenthesis that prompts the user what to enter. The computer then waits until the user types a response, terminated by the user typing the Enter key. A string, as a sequence of characters, is returned to the variable on the lefthand side of the assignment statement. For example: currPopulation = input(“Enter the current US population”) The data in currPopulation is a string (because that is what the input statement does) but we need it to be a number…
A triangle is considered valid if the sum of each 2 sides is greater than the remaining third side. Also, triangles can be classified as follows: > Equilateral: If all sides are equal > Isosceles: If 2 sides are equal > Scalene: If all sides are not equal Write a program that takes the length of three sides and print "equilateral", "isosceles", or "scalene". If the input does not create a valid triangle print "invalid".
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In this assignment you will use the MyString class that you wrote earlier in this course. A palindrome is a string that reads the same forward and backward. Write a program that reads in any number of MyStrings from the user and determines if each MyString is a palindrome. The user will terminate each MyString by pressing the return (or enter) button. The user will indicate that there are no more MyStrings by entering "quit". To do this you must write a recursive function named isAPalindrome that takes a single MyString argument and two arguments that are bounds on MyString indices. The function must examine the part of the argument between the two bounds (including the bounds) and return true if this part of the argument is a palindrome, false if it is not a palindrome. The function must be recursive and must not call any other functions except ispunct(), isspace(), and toupper() (described below). Do not make any changes to the MyString class (except, if necessary, to correct errors…
In this assignment you will use the MyString class that you wrote earlier in this course. A palindrome is a string that reads the same forward and backward. Write a program that reads in any number of MyStrings from the user and determines if each MyString is a palindrome. The user will terminate each MyString by pressing the return (or enter) button. The user will indicate that there are no more MyStrings by entering "quit". To do this you must write a recursive function named isAPalindrome that takes a single MyString argument and two arguments that are bounds on MyString indices. The function must examine the part of the argument between the two bounds (including the bounds) and return true if this part of the argument is a palindrome, false if it is not a palindrome. The function must be recursive and must not call any other functions except ispunct(), isspace(), and toupper() (described below). Do not make any changes to the MyString class (except, if necessary, to correct errors…