remove duplicates from an array

[ejkang62]

I'd like to make a void function that merge two arrays and delete duplicates then return the size of the array.

below is to merge two arrays. n1+n2 are less than 1000 for sure so I set result[1000]

	size_t k = 0;
	size_t i = 0;
	while (i < n1) {
		result[k] = arr1[i];
		k++;
		i++;
	}
	while (i < n2) {
		k = n1;
		result[k] = arr2[i];
		k++;
		i++;
	}

and I wrote a code that checks if two elements are duplicates as below

		for (size_t i=0; i < n; i++) {
			for (size_t k = 0; k < n; k++) {
				if (i!=k && array[i] == array[k]) ///???????????

			}
		}

I'm stuck here because I don't know how to remove the element from the array :( Can anybody give me wisdom. and I'd so appreciate if you glance at the merging arrays code if it's right

[gunnerfunner]

Check this good program how to remove duplicates from an array, it's in C but you should be able to C++ it:
http://www.codeforwin.in/2015/07/c-program-to-delete-duplicate-elements-from-array.html

[dhayden]

In your code, you aren't copying the first n1 items of arr2.

I always find it helpful to think in terms of the source and destination (src & dst). In this case, they would be indexes:

int src,dst;
for (src=0; src<n1; ++src) {
    result[src] = arr1[src];
}
dst=src;
for (src=0; src<n2; ++src, ++dst) {
    result[dst] = arr1[src];
}

Are these arrays sorted? That would make it easier to check for duplicates. Should the result be sorted?