Comparing Arrays - for loop issue?

[NativeNeo]

Hi there,

This is my first post and thanks for taking a look. So let's dive in....

I am comparing two arrays to see if the student[] matches the answers[]. I've got the for loops set up right I think but when i enter in the correct answers I only receive a "You got 4 questions right" when it should say I got 10 right. Anyone see why its not responding correctly?

#include<iostream>
using namespace std;

int grade(const char master[], const char student[], int);

void main()
{
	int howMany;

	char answers[] = {'a','b','b','a','c','b','a','a','b','c'};
	char student[10];

	cout<<"How many questions? ";
	cin>>howMany;

	cout<<"Enter student answers: ";
	cin>>student[0];

	grade(answers,student,howMany);

}

int grade(const char master[], const char student[], int howMany)
{
	int correct = 0;
	for(int i = 0; i<howMany; i++)
	{
		for(int j = 0; j<howMany; j++)
		{
			if(master[i] == student[j])
				correct++;
		}
		
	}
	cout<<"You got "<<correct<<" correct"<<endl;
	return 0;
}

[Warnis]

You're not filling the student array, I'm suprised you get 4 right when you only initialize student[0].
Try looping 10 times in order to fill the student array

[NativeNeo]

aha! that helped and then i was able to take out the extra for loop in my function and i switched the comparison so it was making sure the students answers were checked against the master key...it always helps to get another perspective on things...Thank you Warnis kudos!