#include <iostream>

int main()
{
	int codeList[] = {10,15,20,25,30};
	size_t itemsCount = (sizeof(codeList)) / sizeof(codeList[0]);
	
	int item = 10;
	
	size_t index = 0;
	for (; index < itemsCount; index++)
	{
    	if (item == codeList[index])
    	{
    		break;
    	}
	}
	
	if (index < itemsCount)
	{
		printf("Item %d found at index %d\n", item, index);
	}
	else
	{
		printf("Item %d not found\n", item);
	}
	
	return 0;
}