// Class average program with counter-controlled repetition
#include <stdio.h>
// function main begins program execution
int main( void )
{
unsigned int counter; // number of grade to be entered next
int grade; // grade value
int total; // sum of grades entered by user
int average; // average of grades
// initialization phase
total = 0; // initialize total
counter = 1; // initialize loop counter
// processing phase
while ( counter <= 10 ) { // loop 10 times
printf( "%s", "Enter grade: " ); // prompt for input
scanf( "%d", &grade ); // read grade from user
total = total + grade; // add grade to total
counter = counter + 1; // increment counter
} // end while
// termination phase
average = total / 10; // integer division
printf( "Class average is %d\n", average ); // display result
} // end function main
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