Thread: String troubles

Okay that works wonders i threw in the docking marks and 0 marks for blanks.

Now the grading system is throwing me off a little bit. Ive done lots of these before, but for some reason i am drawing a blank on how i would like to do it.

Code:

 grades = ((score/20)*100);
		
		if(grades<60)
		{
			printf("F\n");
		}
		else if(grades>=60&&grades<70)
		{
			printf("D\n");
		}
		else if(grades>=70&&grades<80)
		{
			printf("C\n");
		}
		else if(grades>=80&&grades<90)
		{
			printf("B\n");
		}
		else if(grades>=90&&grades<100)
		{
			printf("A\n");
		}
		else if(grades>=100)
		{
			printf("A+\n");
		}

Heres my somewhat correct yet failed attempt.

A few questions/potential problems:
1. Are you giving +1 or +2 points for a correct answer. +2 would mean a max score of 40, not 20. Adjust your divisor as necessary.
2. grades = ((score/20)*100); is integer division. Unless the score is greater than 20, (score/20) will return zero. Either multiply by 100 first, then divide by 20 (should be equivalent to multiply by 5 actually), or cast your score to a float before all this, like so (((float) score)/20)*100.

Also, your if-else is generally fine, but you could simplify, like so

Code:

if (grade < 60) {
    printf("F\n");
}
else if (grade < 70) {  // the first clause guarantees that, if we get here, grade >= 60
}
else if (grade < 80) {  // again, here we're guaranteed grade >= 70
}
...

anduril ... excellent suggestion for the if-else !

The final score can be fixed very nicely by simply giving 5 points for each correct answer.

Originally Posted by Annihilate

Okay thank you very much my question has been completed fully to the standards that i wanted. I thank you CommonTater and anduril462 for being patient with my learning ability. I hope to one day be able to help you.

No worries... I've kind of enjoyed doing this....

As far as helping me, well that million dollar donation you were contemplating would be nice...

Glad you learned something.