Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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The last part of this code I need the gallon round to the nearest number, but it still shows wrong after I apply the round(), I don't know how to change it
#include <iostream>
#include <cmath> // Note: Needed for math functions in part(3)
#include <iomanip> // For setprecision
using namespace std;
int main()
{
double wallHeight;
double wallWidth;
double wallArea;
cout << "Enter wall height (feet):" << endl;
cin >> wallHeight;
// FIXME (1): Prompt user to input wall's width
cout << "Enter wall width (feet):" << endl;
cin >> wallWidth;
// Calculate and output wall area
wallArea = wallHeight * wallWidth; // FIXME (1): Calculate the wall's area
cout << fixed << setprecision(2) << "Wall area: " << wallArea
<< " square feet" << endl;
// FIXME (1): Finish the output statement
// FIXME (2): Calculate and output the amount of paint in gallons needed to
//paint the wall
cout << fixed << setprecision(2) << "Paint needed: " << wallArea/350
<< " gallons" << endl; // FIXME (1): Finish the output statement
// FIXME (3): Calculate and output the number of 1 gallon cans needed to
// paint the wall, rounded up to nearest integer
cout << "Cans needed: " << round(wallArea/350) << "can(s)" << endl;
return 0;
}
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