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Note:     Use “isPrime” built-in                Arrays and strings
                           function to display prime
                           numbers.                    Arrays
                                                       Suppose you are required to create a        Chapter Four: Object oriented programming with C++
               4.   Write a C++ program that can help   program that can help a teacher to read
          FOR ONLINE READING ONLY
                   WAMO bank to calculate the total    the marks of 50 students. To accomplish
                   amount of money (A) gained by       this  task you will  have  to declare  50
                   the customer after “n” number of    variables each  storing one mark of a
                   years. Given, the interest rate “R”   student. Such a plan is entirely difficult
                   provided by the bank is 12%. The    because you may not remember and
                   program will prompt the user to     track the names of variables. To solve
                   enter the amount of money (P)       such problem, you can store all marks
                   invested by the customer and then   of 50 students using a single declaration
                   display the result on the computer   of a variable.  A typical  data  structure
                                                       to  help  you achieve  this  is known as
                   screen. Hint: Use the formula,      an array. Figure 4.62 shows a structure
                   A =    1 ( P + R ) ,  Use function pow   of array to solve a problem of creating
                                n
                   (a, b) for ab.                      numerous declarations.


































                                            Figure 4.62: A structure of array

              An array is a collection of elements of the same data types that can be stored in a
              fixed size, placed in a contiguous memory location, and that can be individually

                                                    283
               Student’s Book  Form Five



     Computer Science Form 5.indd   283                                                     23/07/2024   12:34
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