From 94d0033ed89bb5bfb6500051296892fb7cea6c29 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Mon, 25 Dec 2023 17:56:34 +0100
Subject: Small cleanup

---
 2023/08/8a.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

(limited to '2023/08/8a.c')

diff --git a/2023/08/8a.c b/2023/08/8a.c
index 62f6fcd..f6d58b5 100644
--- a/2023/08/8a.c
+++ b/2023/08/8a.c
@@ -1,17 +1,13 @@
-#include <inttypes.h>
-#include <math.h>
-#include <stdbool.h>
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
 #define N 30000
-
-bool isnum(char c) { return c >= '0' && c <= '9'; }
-int index(char *c) { return c[0]-'A' + (c[1]-'A' + (c[2]-'A')*26)*26; }
+#define ISNUM(c) (c >= '0' && c <= '9')
 
 int map[N][2];
 
+int index(char *c) { return c[0]-'A' + (c[1]-'A' + (c[2]-'A')*26)*26; }
+
 int main() {
 	char *buf, dir[N], line[N];
 	int n, i, s;
-- 
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