C exercises and solutions: calculate average score

C structure: calculate average score

Step 8: Defining the average(student[] st, int itemcount) function to calculate the average score of a selected student. The function also starts by asking the user to input the id of the target student. This id is checked to make sure it really exists. The average score can be calculated by dividing the sum of quizz1 score, quizz2 score, assignment score, mid-term score, and final score by 5.

//function to calculate the average score of a student
void average(student st[], int itemcount)
char id[10];
float avg=0;
printf("Enter students'ID:");
int index = search(st, id,itemcount);
if (index != -1 && itemcount>0)
st[index].total = st[index].quizz1 + st[index].quizz2 + st[index].assigment + st[index].midterm + st[index].final;
avg = st[index].total /5;

printf("The average score is %f.",avg);


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