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Katen [24]
3 years ago
9

What is the output from main (below) after the following function is called. void calculateCost(int count, double& subTotal,

double& taxCost) // definition { if ( count < 10) subTotal = count * 0.50; else subTotal = count * 0.20; taxCost = 0.1 * subTotal; } int main() { double tax = 0.0, subTotal = 0.0; calculateCost(15, subTotal, tax); // function call cout << "The cost for 15 items is " << subTotal << ", and the tax for "<< subTotal << " is " << tax << endl; return 0; }
Computers and Technology
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

     

Explanation:

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Assume that you have an array of integers named arr. The following program segment is intended to sum arr [0]through arr[n−1], w
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Answer:

There is only one modification in the above loop i.e. while loop should be like this--

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     {

         sum+=arr[i];   // Line 1, In question segment it is line 2.

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Output:

Now if the array input is 1,2,3,4,5 then the output is 15.

Explanation:

In the above question, all the line of the segment is right except the body of the loop because--

  • The First line of the loop is increment statement which increments the value of "i" variable from 1 and the value of "i" variable will be 1 in the first iteration of the loop
  • The second line starts to add the value from 1'st index position of the array. Hence the segment gives the wrong answer. It adds the arr[1] to arr[n-1].
  • So I interchanged both lines of the while loop as shown in the answer part. I make the line 1 (In question segment) as line 2(In answer part) and line 2 (In question segment) as line 1 (In answer part).

Now It gives the correct output because it can add arr[0] to arr[n-1].

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