advent2025

commit 94cb4aa2adc0d59f7a47b633167f80d1817e7af3
parent 2821befb1687dd8623b0d360a3249cabc8686c93
Author: bsandro <email@bsandro.tech>
Date:   Sun,  7 Dec 2025 23:31:57 +0200

small cleanup, mostly naming

Diffstat:
M
day01.c
 | 
8
++++----
M
day02.c
 | 
16
++++++++--------

2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/day01.c b/day01.c
@@ -9,16 +9,16 @@ int main(void) {
     int p2 = 0;
     char dir = 0;
     char buf[4] = {0};
-    int bufs = 0;
+    int bufl = 0;
     int cnt = 0;
     for (int c=getchar();c!=EOF;c=getchar()) {
         if (c=='L'||c=='R') {
             dir = c;
             cnt = 0;
         } else if (c>='0'&&c<='9') {
-            buf[bufs++] = c-'0';
+            buf[bufl++] = c-'0';
         } else if (c=='\n') { // sscanf() felt slow
-            for (int i=0;i<bufs;++i) {
+            for (int i=0;i<bufl;++i) {
                 cnt = cnt*10+buf[i]; // reinventing atoi
             }
             if (cnt>=DIAL) {
@@ -35,7 +35,7 @@ int main(void) {
                 if (cur>=DIAL) cur = cur-DIAL;
             }
             if (cur==0) { p1++; p2++; }
-            bufs = cnt = 0;
+            bufl = cnt = 0;
         }
     }
     printf("p1: %d\np2: %d\n", p1, p2);
diff --git a/day02.c b/day02.c
@@ -14,9 +14,9 @@ int digits(uint64_t num) {
     return log10l(num)+1;
 }
 
-uint64_t btoi(uint64_t buf[16], int bufs) {
+uint64_t btoi(int bufl, uint64_t buf[bufl]) {
     uint64_t num = 0;
-    for (int i=0;i<bufs;++i) num = num*10+buf[i];
+    for (int i=0;i<bufl;++i) num = num*10+buf[i];
     return num;
 }
 
@@ -69,18 +69,18 @@ void sum_silly(Range range, struct Res *r) {
 
 int main(void) {
     uint64_t buf[16] = {0};
-    int bufs = 0;
+    int bufl = 0;
     Range range = {0};
     struct Res r = {0};
     for (int c=getchar();c!=EOF;c=getchar()) {
         if (c>='0'&&c<='9') {
-            buf[bufs++] = c-'0';
+            buf[bufl++] = c-'0';
         } else if (c=='-') {
-            range.first = btoi(buf, bufs);
-            bufs = 0;
+            range.first = btoi(bufl, buf);
+            bufl = 0;
         } else if (c==','||c=='\n') {
-            range.last = btoi(buf, bufs);
-            bufs = 0;
+            range.last = btoi(bufl, buf);
+            bufl = 0;
             sum_silly(range, &r);
         }
     }