From f24c66355af75c3045a18575d4027f6aeb327498 Mon Sep 17 00:00:00 2001
From: Lu Xu <oliver_lew@outlook.com>
Date: Fri, 7 Jan 2022 23:43:01 +0800
Subject: [PATCH] change build options for debugging

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 02ca581..d148f22 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ BINARIES:=$(SOURCES:.c=)
 all: $(BINARIES)
 
 %: %.c
-	clang -DONLINE_JUDGE -O2 -Wall -std=c99 -pipe $< -lm -o $@
+	clang -g -DONLINE_JUDGE -Wall -std=c99 -pipe $< -lm -o $@
 
 clean:
 	rm -f $(BINARIES)