/* Problem 3 practice

Write a function int difference (int A[], int B[],int size ) that finds and returns the 
amount of differences between two arrays.

For example:
A: 1, 2, 5, 3, 2, 7, -9, 10, 2, 3
B: 1, 2, 5, 4, 2, 7, 5, 10, 2, 3
the amount of differences will be 2,since A[3] is not equal to B[3] and A[6] is not equal to B[6].

If A and B are identical the amount of differences will be 0.

Write a program that reads 4 integer arrays of 10 
elements each and for each pair finds the amount of 
differences using the function that you wrote.
*/

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define SIZE 10

//function prototypes
int difference(int A[], int B[],int size); 
void make_random_array(int A[], int size, int min, int max);
void print_array(int A[], int size);

int main(){
	srand(time(NULL));
	int i, A[SIZE],B[SIZE];
	for(i=0; i<2;i++){
		make_random_array(A,10, -1,1);
		make_random_array(B,10,-1,1);
		printf("array A\n");
		print_array(A,10);
		printf("array B\n");
                print_array(B,10);
		printf("the number of differences is %d\n",difference(A,B,10));
	}

}
void make_random_array(int A[], int size, int min, int max){
	int i;
	for(i=0;i<size;i++){
		A[i]=min+rand()%(max-min+1);
	}
}
void print_array(int A[], int size){
	int i;
        for(i=0;i<size;i++){
		printf("%d ",A[i]);
	}
	printf("\n");
}

int difference(int A[], int B[],int size){
	int i, count=0;
	for(i=0;i<size;i++){
		if(A[i]!=B[i])
			count++;
	}
	return count;
}