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• (January 12, 2023, 01:18:11 AM)

[Chris]

I seem to be having a brain fart when it comes to designing this short program to convert centimeters to yards, feet, and inches. Below is the code that I have so far:

Code: [Select]

#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
int cent, inches, feet, yards;
cout<<"Enter the amount in centimeters:";
cin>>cent;
inches = cent / 2.54;
yards = inches / 36;
feet = inches % 36;
inches = feet / 12;
cout<<yards<<" Yards "<<feet<<" Feet and "<<inches<<" Inches\n";
     system("PAUSE");
    return EXIT_SUCCESS;
}

Anyone have any insignt on where I went wrong? I know it's something really stupid, like the conversion itself - not the syntax.

First person to post the correct solution/helpful advice leading to the correct answer gets 100 coolio points!

[Vespertine]

Do you need a final semi-colon after your last curly brace?

[Chris]

Nope. The syntax of that code is fine. It compiles and executes without any errors. It's just got a few logic errors here and there, I am sure.

[BizB]

inches = cent * 2.54;
yards = inches / 36;
feet = inches / 12;
inches = inches - ((yards * 36) + (feet*12));

[milifist]

Wouldn’t it be better to use float?
The calculations would be much easier and far more accurate.

And what was the purpose of the second inches calculation?




#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
float cent, inches, feet, yards;
cout<<"Enter the amount in centimeters:";
cin>>cent;
inches = cent * 0.393700787;
yards = cent *  0.010936133 ;
feet = cent * 0.032808399;
cout<<yards<<" Yards "<<feet<<" Feet and "<<inches<<" Inches\n";
     system("PAUSE");
    return EXIT_SUCCESS;
}

[BizB]

I'm pretty sure that he's trying to get it to read:

Yards = Total number of complete yards
Feet = Remaining feet
Inches = Remaining inches

Such that 130 Centimeters converts to

Yards: 1
Feet: 1
Inches: 3


My first line above is wrong.  It was right with /  and not *.

[milifist]

Ah, I see..



Then it should be something like this:

#include <cstdlib>
#include <iostream>
#include <math.h>

using namespace std;

int main(int argc, char *argv[])
{
float cent, inches, round_inches, feet, round_feet, yards, round_yards, holder;
cout<<"Enter the amount in centimeters:";
cin>>cent;
yards = cent *  0.010936133;
round_yards = floor(yards);
holder = yards - round_yards;
holder = holder * 91.44;
feet = holder * 0.032808399;
round_feet = floor(feet);
holder = feet - round_feet;
holder = holder * 30.48;
inches = holder * 0.393700787;
round_inches = floor(inches);

cout<<round_yards<<" Yards "<<round_feet<<" Feet and "<<round_inches<<" Inches\n";
     system("PAUSE");
    return EXIT_SUCCESS;
}

[milifist]

You should also add some logic to switch back-and-forth between singular and plural in the output. 

[BizB]

TMTOWTDI

[milifist]

Yeah, the right way and the wrong way! 


Or in this case with an input of 130 cm: the one program that outputs 1 yard, 1 foot, 3 inches and the other that outputs 1 yard, 4 feet, -33 inches.   

[BizB]

 

D'oh!

coffee++;