C 2022 2 part 1

c/2022/2/problem.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../../lib/aoc.h"
+
+int round_score(const char *round) {
+  printf("round: %s\n", round);
+  int shape = round[2] - 'X' + 1;
+  int opponent_shape = round[0] - 'A' + 1;
+  int result = (((shape - opponent_shape) + 4) % 3) * 3;
+  printf("Shape: %d, opp_shape: %d, result: %d\n", shape, opponent_shape, result);
+  return shape + result;
+}
+
+int main() {
+  char *input = aoc_read_input();
+
+  int total_score = 0;
+
+  char *round = strtok(input, "\n");
+
+  while (round != NULL) {
+    total_score += round_score(round);
+    round = strtok(NULL, "\n");
+  }
+
+  printf("Part 1: %d\n", total_score);
+
+  free(input);
+  return 0;
+}