adv2022 first 8 days

1 files changed, 36 insertions, 0 deletions

diff --git a/2022/day03/main.c b/2022/day03/main.c
new file mode 100644
index 0000000..69068fa
--- /dev/null
+++ b/2022/day03/main.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char getWrong(char *line)
+{
+    char *middle = line + strlen(line)/2;
+    char *a = line;
+    char *b = middle;
+    for (char *a = line; a < middle; a++)
+    {
+        for (char *b = middle; *b != '\n'; b++)
+        {
+            if ( *a == *b ) return *b;
+        }
+    }
+}
+
+int main()
+{
+    char *line = NULL;
+    size_t len;
+    int prios = 0;
+    
+    while (getline(&line, &len, stdin) >= 0)
+    {
+        char wrong = getWrong(line);
+        printf("%c", wrong);
+        int prio;
+        if ( wrong >= 97 && wrong <= 122 ) prio = wrong - 96;
+        else prio = wrong - 64 + 26;
+        printf("%d", prio);
+        prios += prio;
+    }
+    printf("\n%d\n", prios);
+}