From cbd92a8d421eaa219c433bff4f74bb3bebc01cb5 Mon Sep 17 00:00:00 2001
From: Nick Griffey <nick.griffey@proton.me>
Date: Sat, 24 Feb 2024 01:04:11 -0600
Subject: [PATCH] add -n check

---
 main.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/main.go b/main.go
index e658416..3d95b07 100644
--- a/main.go
+++ b/main.go
@@ -100,6 +100,8 @@ func main() {
 
 	if *percent < 0 || *percent > 1 {
 		log.Fatal("invalid percentage")
+	} else if *nevents < 0 {
+		log.Fatal("number of events must be non-negative")
 	}
 
 	t := time.Now().Unix() - formula(*percent)