add new solutions

solutions/14/q1493/solution.go

@@ -0,0 +1,24 @@
+package q1493
+
+func longestSubarray(nums []int) int {
+	prev, cur := 0, 0
+	longest := 0
+	has0 := false
+	for _, a := range nums {
+		if a == 1 {
+			cur++
+		}
+		longest = max(longest, prev+cur)
+		if a == 0 {
+			prev, cur = cur, 0
+			has0 = true
+		}
+	}
+
+	if !has0 {
+		longest--
+	}
+	return longest
+}
+
+var _ = longestSubarray