if else inside switch case c language [closed] - c

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I'm trying to do switch then if else in it. I don't know where I missed but this doesn't work.
Here's my code:
include<stdio.h>
include<conio.h>
int main()
{
clrscr();
int grade;
printf("Input Grade");
scanf("%d",&grade);
switch(grade<101)
{
case 1:
if (grade>=95)
printf("A+");
else
printf("Invalid");
break;
case 2:
if (grade>=85)
printf("A");
else
printf("Invalid");
break;
default:
printf("Invalid");
}
getch();
}
So I don't know what's the matter. Only the first case work, when i enter a lower number than 95 'A' isn't the result. Please help me out.

Answer 1

If you have to use switch you should bring the if else statements outside of your switch in order to switch over a proper integer value. Something like this:
int state = 0;
if ( grade < 101 &&‌ grade >= 95 )
state = 1;
else if ( grade < 101 && grade >= 85 )
state = 2;
switch state {
case 1:
printf("A+");
break;
case 2:
printf("A");
break;
default:
printf("invalid");
break;
}

Answer 2

You can express this with switch statements in the following way (though you probably do not want to):
switch(grade)
{
case 100:
case 99:
case 98:
case 97:
case 96:
case 95:
printf("A+");
break;
case 94:
case 93:
case 92:
case 91:
case 90:
case 89:
case 88:
case 87:
case 86:
case 85:
printf("A");
break;
default:
printf("Invalid");
//or an if statement if more options are required.
break;
}