/****************************************************/
/*                                                  */
/*  program: "Dependent Control"                    */
/*  file-name: dependent_control.c                  */
/*                                                  */
/*  author: Jesse Bollinger                         */
/*  date of creation: 2009-02-20                    */
/*  date of latest revision: 2009-02-20             */
/*                                                  */
/*  description:                                    */
/*                                                  */
/*    This program takes a percent grade and        */
/*    determines its letter grade value.            */
/*                                                  */
/*    In this case, the choice of dependent         */
/*    control structure is better than the choice   */
/*    of a independent control structure.           */
/*                                                  */
/****************************************************/

#include <stdlib.h>
#include <stdio.h>

int main()
{
	int student_grade;
	
	char letter_grade;

	int if_statement_count = 0;
	
	int comparison_count = 0;
	
	printf( "\nEnter a numeric grade: " );
	
	scanf( "%d", &student_grade );
	
	if( student_grade >= 90 )
	{
		letter_grade = 'A';
		
		if_statement_count = 1;
		comparison_count = 1;
	}
	else if( student_grade >= 80 )
	{
		letter_grade = 'B';
		
		if_statement_count = 2;
		comparison_count = 2;
	}
	else if( student_grade >= 70 )
	{
		letter_grade = 'C';
		
		if_statement_count = 3;
		comparison_count = 3;
	}
	else if( student_grade >= 60 )
	{
		letter_grade = 'D';
		
		if_statement_count = 4;
		comparison_count = 4;
	}	
	else /* student_grade < 60 */
	{
		letter_grade = 'F';
		
		if_statement_count = 4;
		comparison_count = 4;
	}
	
	printf( "\nThe corresponding letter grade is: %c\n\n", letter_grade );
	
	printf( "Number of if statements entered during execution: %d\n", if_statement_count );
	
	printf( "Number of comparisons performed during execution: %d\n", comparison_count );
	
	/* exit notification */
	printf( "\n<press enter to quit>" );
	
	/* prevent console from instantly closing on program termination */
	/* by waiting for enter to be pressed */
	fflush( stdin );
	scanf( "%*c" );
	
	/* EXIT_SUCCESS return code tells the OS that program execution went ok */
	/* and program ends */
	return EXIT_SUCCESS;
}