Write a program by using c++ that inputs a number and checks whether it is a perfect number or not. A perfect number is the number that is numerically equal to the sum of its divisors. For example, 6 is a perfect number because the divisors of 6 are 1, 2, 3 and 1+2+3=6
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- Write a simple program in C++ that lets the user input a single integer n where 1 ≤ n ≤ 100000. The program should print the sum of the first n prime numbers. In the first example below, the first 5 prime numbers are 2, 3, 5, 7, and 11. Example #1: Enter integer: 5 Prime sum: 28 Example #2: Enter integer: 100000 Prime sum: 62260698721Write a c++ program to assign passengers seats in an airplane. Assume a small airplane with seat numbering as follows: 1 A B C D 2 A B C D 3 A B C D 4 A B C D 5 A B C D 6 A B C D 7 A B C D The program should display the seat pattern, with an 'X' marking the seats already assigned. For example, after seats 1A, 2B, and 4C are taken, the display should look like this: 1 X B C D 2 A X C D 3 A B C D 4 A B X D 5 A B C D 6 A B C D 7 A B C D After displaying the seats available, the program prompts for the seat desired, the user types in a seat, and then the display of available seats is updated. This continues until all seats are filled or until the user signals that the program should end. If the user types in a seat that is already assigned, the program should say that that seat is occupied and ask…Write a program in C++ that lets the user input an odd number of positive integers ( each separated by one space). Assume that each integer except for one, the exclusive integer, appears an even number of times in the input. The program should output the exclusive integer. Example: Enter integers: 2 1 55 3 2 1 4 4 2 2 55 Exclusive: 3
- Write a program in C that take 5 digit number as an input from the user and perform the following tasks:1. Split a number into digits.2. Find the sum of the all the digits in the number.3. Find the product of the all the digits in the number.4. Find maximum number with in the number along with position.5. Printing the digits in the reverse order.Write a complete C++ program that reads a positive and non-zero integer then do the following: 1. Print all odd divisors (factors) of that integer in decreasing order. 2. Print the count of all even divisors. 3. Keep dividing the previous number by 2 until that number reaches zero then print how many times the division was executed. • Example: If the number 20 The odd divisor of 20 is 5, 1 in decreasing order The count of all even divisor is 4 The division was executed 10 timesWrite a c++ program that asks the user to enter a number and then prints all the divisors of thatnumber. A divisor of an integer, also called a factor of , is an integer that can be multiplied bysome other integer to produce . An integer is divisible by another integer if is a factor of , so thatdividing by leaves no remainder. For example:Enter a number: 12The divisors of 12 are = 1, 2, 3, 4, 6, 12Enter a number: 7The divisors of 7 are = 1, 7
- Write in C language not C++ Description A mathmatician Goldbach's conjecture: any even number(larger than 2) can divide into two prime number’s sum.But some even numbers can divide into many pairs of two prime numbers’ sum. Example:10 =3+7, 10=5+5, 10 can divide into two pairs of two prime number. Input Input consist a positive even number n(4<=n<=32766). Output Print the value of how many pairs are this even number can be divided into. Sample Input 1 1234 Sample Output 1 25In this c++ program you are asked to design a 2 x 2 x 2 Rubik's cube that is filled with numbers instead of colors. The cube, naturally, has six sides that are identified as follows: The front side is side 0 The right side is side 1 The backside side is side 2 The left side is side 3 The Up side is side 4 The bottom side is side 5 The squares on every side are initially filled with the same side index. This means that the four squares on the front side are filled with 0's, the four squares on the right side are filled with 1's, etc. You are allowed to move the cube in two directions only: Horizental move (H or h): The first row moves one step in four sides in this order (0 -> 1 -> 2 -> 3 -> 0) Vertical move (V or v): The left column moves one step in four sides in this order ( 0 -> 5 -> 2 -> 4 -> 0) The program accepts from the the user the number of moves he/she wants to make, accepts the sequence of desired moves as shown in the sample case below.…Write a C++ program to display Fibonacci series and also only prime numbers in it Example: Input: How many numbers in the Fibonacci you want: 10 OUTPUT: The first 10 Fibonacci series numbers are: 0,1,1, 2, 3, 5, 8, 13, 21, 34 The prime numbers in the first 10 numbers of Fibonacci series are: 2,3,5,13
- Write a program in c that calculates the student grades’ average for a semester for the number of courses taken in that semester. Your program should do the following: Read from user the number of courses (n) Then, read the courses’ grades for n times (Hint: use a loop) If a grade is grater than 100 or less than 0, ask the user to enter the grade again. Calculate the average of grades using the following formula: average = (sum of grades) / n Print out the average grade on the screen. Note: Always use appropriate data types.Write a program in c++ for determining if a year is a leap year. In the Gregorian calendarsystem you can check if it is a leaper if it is divisible by 4 but not by 100 unless it is also divisible by 400.For example, 1896, 1904, and 2000 were leap years but 1900 was not.Write a program that takes in a year as input (as a command line argument) and prints the string "{year} was a leap year'' if true and "{year} was not a leap year'' if false.Note: background on leap year https://en.wikipedia.org/wiki/Leap_yearHere is a possible example call to the program .\isleapyearc 1896 output: 1896 was a leap year Here is a negative example call to the program .\isleapyearc 1897 output: 1897 was not a leap year with note You are supposed to get the year from command line arguments. You are getting it from stdin c++ languageWrite a program in C++ that calculates the total grade of a student for N number of quizzes. Read value of N from user, and then ask the student marks in quiz 1, and total marks of quiz 1 and so on till N. Display the total of all the quizzes marks and the total marks as given below. Calculate the overall percentage (sum of the total points earned divided by the total points possible) and output it as a percentage. Sample input and output: How many quizzes? 3 Input your marks in quiz 1: 10 Total marks of quiz 1: 10 Input your marks in quiz 2: 7 Total marks of quiz 2: 12 Input your marks in quiz 3: 5 Total marks in quiz 3: 8 Your total is 22 out of 30, and percentage is 73.33%.