Question

Using C programming

Create a function called printMenu( ) with the following properties:

Has no function inputs or output.

Prints the following menu to the screen:

1. Enter user name.

2. Enter scores.

3. Display average score.

4. Display summary.

5. Quit

Create a function called printLine( ) with the following properties:

Takes as input a char

Takes as input an integer corresponding to the number of times to print the character

Has no function output.

For example, if we were to call printLine('*', 10), it should print : **********

Create a function called getAvg( ) with the following properties:

Takes as inputs 3 floating-point numbers

Returns as output a floating-point number corresponding to the average of three numbers.

Do not use printf or scanf inside this function

Create a function called getGradeLetter( ) with the following properties:

Takes a floating-point number containing the percentage

Returns a char corresponding to the letter grade of the percentage.

Do not use printf or scanf inside this function

Answer 1

//function for printMenu
void printMenu( )
{
printf("1. Enter user name.\n");
printf("2. Enter scores.\n");
printf("3. Display average score.\n");
printf("4. Display summary.\n");
printf("5. Quit");
}

//function for printLine

void printLine(char ch,int n)
{
  
for (int i=0;i<n;i++)
printf("%c",ch);
}

//function for getAvg

float getAvg(float num1,float num2,float num3)
{
return (num1+num2+num3)/3;
}

//function for getGradeLetter

char getGradeLetter(float num)
{
if (num>=90)
return 'A';
else if (num>=80 && num<90)
return 'B';
else if (num>=70 && num<80)
return 'C';
else if (num>=40 && num<70)
return 'D';
else
return 'F';
}