if-else statement

Question

My codes allows the user to enter in a score from 1 to 100, which will either tell them that the score is \"Good\", \"OK\", \"Moron\", or \"Invalid\".

But, when I compil

Answer 1

It is happening because instead of using one control flow you use multiple (thus if condition is met before the last if control flow (score >= 55 through score <= 100), else code from the last one is also executed). You can use else if branches:

if (score >= 80 && score <= 100){
   printf("Good\n",);
} else if (score >= 55 && score <= 79){
   printf("OK\n",);
} else if (score >= 1 && score <= 54){
   printf("Moron\n",);
} else {
   printf("Invalid\n");
}

You can also use nested if/else statements, but the solution above seems less cumbersome.