public SimpleSet <T> Intersection(SimpleSet <T> set)
{
// return new SimpleSet<T>(_items.Intersect(set._items));
var result = new SimpleSet <T>();
SimpleSet <T> big;
SimpleSet <T> small;
if (Count >= set.Count)
{
big = this;
small = set;
}
else
{
big = set;
small = this;
}
foreach (var i in small._items)
{
foreach (var j in big._items)
{
if (i.Equals(j))
{
result.Add(i);
break;
}
}
}
return(result);
}
public SimpleSet <T> Intersection(SimpleSet <T> secondSet)
{
SimpleSet <T> newSet = new SimpleSet <T>();
List <T> bigger;
List <T> smaller;
if (this.Count >= secondSet.Count)
{
bigger = this.items;
smaller = secondSet.items;
}
else
{
bigger = secondSet.items;
smaller = this.items;
}
foreach (var item1 in smaller)
{
foreach (var item2 in bigger)
{
if (item1.Equals(item2))
{
newSet.Add(item1);
break;
}
}
}
return(newSet);
}
public SimpleSet <T> Difference(SimpleSet <T> secondSet)
{
SimpleSet <T> newSet = new SimpleSet <T>(items);
foreach (var item in secondSet.items)
{
newSet.Remove(item);
}
return(newSet);
}
public SimpleSet <T> Difference(SimpleSet <T> set)
{
// return new SimpleSet<T>(_items.Except(set._items));
var result = new SimpleSet <T>(_items);
foreach (var item in set._items)
{
result.Remove(item);
}
return(result);
}
public SimpleSet <T> Union(SimpleSet <T> secondSet)
{
SimpleSet <T> simpleSet = new SimpleSet <T>();
foreach (var items in items)
{
simpleSet.Add(items);
}
foreach (var items in secondSet.items)
{
simpleSet.Add(items);
}
return(simpleSet);
}
public SimpleSet <T> Union(SimpleSet <T> set)
{
// return new SimpleSet<T>(_items.Union(set._items));
var result = new SimpleSet <T>();
foreach (var item in _items)
{
result.Add(item);
}
foreach (var item in set._items)
{
result.Add(item);
}
return(result);
}
public SimpleSet <T> SymmetricDifference(SimpleSet <T> secondSet)
{
SimpleSet <T> newSet = new SimpleSet <T>();
foreach (var item1 in this.items)
{
var Equals = false;
foreach (var item2 in secondSet.items)
{
if (item1.Equals(item2))
{
Equals = true;
break;
}
}
if (Equals == false)
{
newSet.Add(item1);
}
}
foreach (var item1 in secondSet.items)
{
bool Equals = false;
foreach (var item2 in this.items)
{
if (item1.Equals(item2))
{
Equals = true;
break;
}
}
if (Equals == false)
{
newSet.Add(item1);
}
}
return(newSet);
}
public bool Subset(SimpleSet <T> set)
{
// return _items.All(i => set._items.Contains(i));
foreach (var item in _items)
{
var equals = false;
foreach (var item2 in set._items)
{
if (item.Equals(item2))
{
equals = true;
break;
}
}
if (!equals)
{
return(false);
}
}
return(true);
}
public bool Subset(SimpleSet <T> secondSet)
{
foreach (var item1 in items)
{
bool Equalse = false;
foreach (var item2 in secondSet.items)
{
if (item1.Equals(item2))
{
Equalse = true;
break;
}
}
if (Equalse == false)
{
return(false);
}
}
return(true);
}