add new solutions

solutions/17/q1768/solution.go

@@ -0,0 +1,19 @@
+package q1768
+
+import "strings"
+
+func mergeAlternately(word1 string, word2 string) string {
+	builder := strings.Builder{}
+	for i := range max(len(word1), len(word2)) {
+		if i < len(word1) {
+			builder.WriteByte(word1[i])
+		}
+		if i < len(word2) {
+			builder.WriteByte(word2[i])
+		}
+	}
+
+	return builder.String()
+}
+
+var _ = mergeAlternately