Method Add

ch6/intset/intset.go:29–35

Add adds the non-negative value x to the set.

(x int)

// Add adds the non-negative value x to the set.
func (s *IntSet) Add(x int) {
	word, bit := x/64, uint(x%64)
	for word >= len(s.words) {
		s.words = append(s.words, 0)
	}
	s.words[word] |= 1 << bit
}

// UnionWith sets s to the union of s and t.
func (s *IntSet) UnionWith(t *IntSet) {