## Problem Statement

Exercise 1-3: Modify the temperature conversion program to print a heading above the table.

## Solution

First for reference let me write down the temperature conversion program, that is referred in question.

#include <stdio.h>
int main()
{
float fahr, celsius;
int lower, upper, step;

lower = 0;
upper = 300;
step = 20;

fahr = lower;
while(fahr <= upper) {
celsius = (5.0/9.0) * (fahr - 32.0);
printf("%3.0f %6.1f\n", fahr, celsius);
fahr = fahr + step;
}

return 0;
}


Question is telling to print a heading above the table. Since the table heading occurs before all the entries. It should occur before while loop. Which can be done as follows.

#include <stdio.h>
int main()
{
float fahr, celsius;
int lower, upper, step;

lower = 0;
upper = 300;
step = 20;

fahr = lower;
printf("  C      F\n");
printf("----------\n");
   while(fahr <= upper) {
celsius = (5.0/9.0) * (fahr - 32.0);
printf("%3.0f %6.1f\n", fahr, celsius);
fahr = fahr + step;
}
return 0;
}


Output of the above program will look as follows

  C      F
----------
0  -17.8
20   -6.7
40    4.4
60   15.6
80   26.7
100   37.8
120   48.9
140   60.0
160   71.1
180   82.2
200   93.3
220  104.4
240  115.6
260  126.7
280  137.8
300  148.9