From 87b53d0974feb66feaf45ab882a6cf79836c75b8 Mon Sep 17 00:00:00 2001
From: Vasily Guzov <vasily.guzov@gmail.com>
Date: Fri, 20 Sep 2024 22:33:01 +0300
Subject: [PATCH] [solution] check is posible to make triangle

---
 lib/isTriangle.ts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 lib/isTriangle.ts

diff --git a/lib/isTriangle.ts b/lib/isTriangle.ts
new file mode 100644
index 0000000..afd4622
--- /dev/null
+++ b/lib/isTriangle.ts
@@ -0,0 +1,14 @@
+export function isTriangle(a: number, b: number, c: number): boolean {
+  if (a < 0 || b < 0 || c < 0) return false;
+
+  return a + b > c && a < b + c && b < a + c;
+}
+
+console.log(isTriangle(7, 2, 2), false);
+console.log(isTriangle(1, 2, 2), true);
+console.log(isTriangle(4, 2, 3), true);
+console.log(isTriangle(2, 2, 2), true);
+console.log(isTriangle(1, 2, 3), false);
+console.log(isTriangle(-5, 1, 3), false);
+console.log(isTriangle(0, 2, 3), false);
+console.log(isTriangle(1, 2, 9), false);