Initial commit, some solutions

1 files changed, 33 insertions, 0 deletions

diff --git a/2023/02/2a.c b/2023/02/2a.c
new file mode 100644
index 0000000..f3ddfc8
--- /dev/null
+++ b/2023/02/2a.c
@@ -0,0 +1,33 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define N 10000
+
+#define MAX(x, y) ((x)>(y) ? (x) : (y))
+
+int color[26] = { ['r'-'a'] = 0, ['g'-'a'] = 1, ['b'-'a'] = 2 };
+
+int main() {
+        char *buf, line[N];
+        int i, sum, x, maxc[3];
+
+        for (i = 1, sum = 0; (buf = fgets(line, N, stdin)) != NULL; i++) {
+                maxc[0] = maxc[1] = maxc[2] = 0;
+                while (*buf++ != ':');
+                while (*buf++) {
+                        if (*buf < '0' || *buf > '9')
+                                continue;
+                        x = atoi(buf);
+                        while (*buf < 'a' || *buf > 'z')
+                                buf++;
+                        maxc[color[*buf-'a']] = MAX(maxc[color[*buf-'a']], x);
+                }
+                if (maxc[0] <= 12 && maxc[1] <= 13 && maxc[2] <= 14)
+                        sum += i;
+        }
+
+        printf("%d\n", sum);
+        return 0;
+}