CODEWITHSUNDEEP
c++
Nijoel
Nijoel

Reputation: 13

understanding this C++ module?

Given  a type Money that is a structured type with two int fields, dollars and cents. Assume that an array named monthlySales with 12 elements, each of type Money has been declared and initialized.

Assume that a Money-variable yearlySales has also been declared. Write the necessary code that traverses the monthlySales-array  and adds it all up and stores the resulting total in yearlySales. Be sure make sure that yearlySales ends up with a valid value, i.e. a value  of cents that is less than  100.

Now i'm not asking for the answer but, i'm asking how do i approach it. simply because i'm not sure how to address the question like how to code it. I have understand the first paragraph of the question respectively. here is my snippet of code. now im just stuck on how to compute it. i just need a bit of guidance. Thanks! the code i have so far, accesses the array I have of 12 elements and assigns them random numbers of dollars and cents respectively.

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <cmath>

using namespace std;

    struct Money
    {
        int dollars,cents;
    };


    int main()
    {
        Money monthlySales[12], yearlySales;
        for (int i = 0; i < 12; i++)
        {
            monthlySales[i].cents =rand()%99;
            monthlySales[i].dollars =rand();
        }

        return 0;
    }

Upvotes: 0

Views: 2338

Answers (3)

Programmy
Programmy

Reputation: 1

This works too!

float dollar = 0;
float cent = 0;
for (int i = 0; i < 12; i++) {
    dollar += monthlySales[i].dollars;
    cent += monthlySales[i].cents;
    do {
        if (cent > 100 ) {
        dollar += 1;
        cent -= 100;
            }
    }while (cent > 100);
}

yearlySales.dollars = dollar;
yearlySales.cents = cent;

Upvotes: 0

Kaushik Sivakumar
Kaushik Sivakumar

Reputation: 205

     //to compute Sum
    for (int i = 0; i < 12; i++)
        {
            yearlySales.cents +=monthlySales[i].cents;//keeps adding yearlySales cents for each month
            yearlySales.dollars +=monthlySales[i].dollars;//keeps adding yearlySales dollars
        }
   //if cents 100 convert it into dollars eg:720cents is convereted to 7$ 20 cents and 7 dollars is added       to yearly dollars
    if(yearlySales.cents > =100)
    {
    yearlySales.dollars+=yearlySales.cents/100;
    yearlySales.cents=yearlySales.cents%100;
    }

Upvotes: 1

abelenky
abelenky

Reputation: 64702

Write the necessary code that traverses the monthlySalesarray and adds it all up and stores the resulting total in yearlySales. Be sure make sure that yearlySales ends up with a valid value , i.e. a value of cents that is less than 100.

Money monthlySales[12], yearlySales;

yearlySales.cents   = 0;
yearlySales.dollars = 0;

for (int i = 0; i < 12; i++)
{
    yearlySales.cents += monthlySales[i].cents;     // Add up the cents
    yearlySales.dollars += monthlySales[i].dollars; // Add up the dollars

    yearlySales.dollars += yearlySales.cents / 100; // If cents > 100, increase dollars appropriately.
    yearlySales.cents = yearlySales.cents % 100;    // If cents > 100, set it to the remainder.
}

Upvotes: 3

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