2022 Day 2 Part 1

2022/day2.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+int outcomes[3][3] = {
+//                  Rock    Paper   Scissor
+/* Rock */      {   3,      0,      6 },
+/* Paper */     {   6,      3,      0 },
+/* Scissor */   {   0,      6,      3 }
+};
+
+int main() {
+    FILE *input = fopen("day2.input", "r");
+    int total = 0;
+    while (!feof(input)) {
+        char opponent, my;
+        fscanf(input, "%c %c\n", &opponent, &my);
+        
+        total += my - 'X' + 1 + outcomes[my - 'X'][opponent - 'A'];
+    }
+    fclose(input);
+    
+    printf("Total score %d\n", total);
+}