add new solutions

solutions/0/q49/solution.go

@@ -0,0 +1,22 @@
+package q49
+
+import "slices"
+
+func groupAnagrams(strs []string) [][]string {
+	groups := map[string][]string{}
+
+	for i := range strs {
+		byt := []byte(strs[i])
+		slices.Sort(byt)
+		sorted := string(byt)
+		groups[sorted] = append(groups[sorted], strs[i])
+	}
+
+	ret := make([][]string, 0, len(groups))
+	for _, g := range groups {
+		ret = append(ret, g)
+	}
+	return ret
+}
+
+var _ = groupAnagrams