Part 2

2022/rust/src/day2.rs

@@ -48,16 +48,50 @@ fn part1(input: &str) -> i32 {
     input
         .lines()
         .map(|s| {
-            println!("{:?}", s);
-            println!("{:?}", s.chars().nth(2));
             let mut c = s.chars();
             rps(c.nth(0).unwrap(), c.nth(1).unwrap())
         })
         .sum()
 }
 
+fn rps2(a: char, b: char) -> i32 {
+    match b {
+        'X' => {
+            0 + match a {
+                'A' => 3,
+                'B' => 1,
+                'C' => 2,
+                _ => 1000000,
+            }
+        }
+        'Y' => {
+            3 + match a {
+                'A' => 1,
+                'B' => 2,
+                'C' => 3,
+                _ => 1000000,
+            }
+        }
+        'Z' => {
+            6 + match a {
+                'A' => 2,
+                'B' => 3,
+                'C' => 1,
+                _ => 1000000,
+            }
+        }
+        _ => 1000000,
+    }
+}
+
 fn part2(input: &str) -> i32 {
-    0
+    input
+        .lines()
+        .map(|s| {
+            let mut c = s.chars();
+            rps2(c.nth(0).unwrap(), c.nth(1).unwrap())
+        })
+        .sum()
 }
 
 #[cfg(test)]
@@ -73,8 +107,8 @@ C Z";
         assert_eq!(part1(TEST_INPUT), 15)
     }
 
-    // #[test]
+    #[test]
-    // fn test_part2() {
+    fn test_part2() {
-    //     assert_eq!(part2(TEST_INPUT), 10000)
+        assert_eq!(part2(TEST_INPUT), 12)
-    // }
+    }
 }