add new solutions

solutions/0/q97/solution.go

@@ -0,0 +1,32 @@
+package q97
+
+func isInterleave(s1 string, s2 string, s3 string) bool {
+	if len(s1)+len(s2) != len(s3) {
+		return false
+	}
+
+	possible := make([][]bool, len(s1)+1)
+	for i := range possible {
+		possible[i] = make([]bool, len(s2)+1)
+	}
+	possible[0][0] = true
+
+	for tLen := 1; tLen <= len(s3); tLen++ {
+		c := s3[tLen-1]
+		for len1 := max(0, tLen-len(s2)); len1 <= min(len(s1), tLen); len1++ {
+			len2 := tLen - len1
+
+			if len1 > 0 && s1[len1-1] == c && possible[len1-1][len2] {
+				possible[len1][len2] = true
+				continue
+			}
+			if len2 > 0 && s2[len2-1] == c && possible[len1][len2-1] {
+				possible[len1][len2] = true
+			}
+		}
+	}
+
+	return possible[len(s1)][len(s2)]
+}
+
+var _ = isInterleave