SPL Question Solutions

Q1(d):
Identify the syntax errors from the following program. After corrections what will be the output would you expect when you execute it?

#define PI 3.14  
int main()  
{  
   int radious;  
   float perimeter, area  
   radious = 5  
   perimeter = 2.0 * PI * radious;  
   area = PI * radious * radious;  
   printf("%f, %f", perimeter, area)  
   return 0;  
}

Marks: 2+2

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Syntax Errors Identified

Here are the specific errors in the code:

1. Missing Header File: The program uses printf but is missing #include <stdio.h> at the top.
2. Missing Semicolon (Line 5): The declaration float perimeter, area is missing a semicolon ; at the end.
3. Missing Semicolon (Line 6): The assignment radious = 5 is missing a semicolon ; at the end.
4. Missing Semicolon (Line 9): The printf statement is missing a semicolon ; at the end.

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Corrected Code

#include <stdio.h> // Include standard I/O library
#define PI 3.14  

int main()  
{  
   int radious;  
   float perimeter, area; // Added semicolon
   radious = 5;           // Added semicolon
   perimeter = 2.0 * PI * radious;  
   area = PI * radious * radious;  
   printf("%f, %f", perimeter, area); // Added semicolon
   return 0;  
}

Expected Output

When executed, the program calculates the perimeter (\(2 \times 3.14 \times 5\)) and area (\(3.14 \times 5^2\)). By default, the %f format specifier prints 6 decimal places.

Output:

31.400000, 78.500000