PROGRAM IN TO TO SHOW THE USE OF DOUBLE SUBSCRIPTED ARRAY

/*…This is a c program for illustrating the use of double subscripted array…*/

#include <stdio.h>
#define STUDENTS 3
#define EXAMS 4
int minimum( const int [][ EXAMS ], int, int );       /*…Function Declaration…./
int maximum( const int [][ EXAMS ], int, int );
double average( const int [], int );
void printArray( const int [][ EXAMS ], int, int );

/*…Main Function Start’s…*/
void main()
{

/*…Initialization Ana Declaration…*/
int student;
const int studentGrades[ STUDENTS ][ EXAMS ] = 
{ { 77, 68, 86, 73 },
{ 96, 87, 89, 78 },
{ 70, 90, 86, 81 } };
printf( “The array is:\n” );
printArray( studentGrades, STUDENTS, EXAMS );
printf( “\n\nLowest grade: %d\nHighest grade: %d\n”,
minimum( studentGrades, STUDENTS, EXAMS ),
maximum( studentGrades, STUDENTS, EXAMS ) );
for ( student = 0; student <= STUDENTS – 1; student++ )
printf( “The average grade for student %d is %.2f\n”, 
student, 
average( studentGrades[ student ], EXAMS ) );
getch();
}

/*….Main Function End’s…*/
/* Find the minimum grade */
int minimum( const int grades[][ EXAMS ], 
int pupils, int tests )
{
int i, j, lowGrade = 100;
for ( i = 0; i <= pupils – 1; i++ )
for ( j = 0; j <= tests – 1; j++ )
if ( grades[ i ][ j ] < lowGrade )
lowGrade = grades[ i ][ j ];
return lowGrade;

}

/* Find the maximum grade */

int maximum( const int grades[][ EXAMS ],

int pupils, int tests )

{

int i, j, highGrade = 0;

for ( i = 0; i <= pupils – 1; i++ )
for ( j = 0; j <= tests – 1; j++ )
if ( grades[ i ][ j ] > highGrade )
highGrade = grades[ i ][ j ];
return highGrade;
}
/* Determine the average grade for a particular exam */
double average( const int setOfGrades[], int tests )
int i, total = 0;
for ( i = 0; i <= tests – 1; i++ )

total += setOfGrades[ i ];
return ( double ) total / tests;
}
/* Print the array */
void printArray( const int grades[][ EXAMS ], 
int pupils, int tests )
{
int i, j;
printf( ” [0] [1] [2] [3]” );
for ( i = 0; i <= pupils – 1; i++ ) {
printf( “\nstudentGrades[%d] “, i );
for ( j = 0; j <= tests – 1; j++ )
printf( “%-5d”, grades[ i ][ j ] );
}
}

the output is::::::::::::::::::::::