feat(day-2): add part 2 solution

1 files changed, 19 insertions, 2 deletions

diff --git a/day-2/script.ts b/day-2/script.ts
index 4e29bbb..29c754f 100644
--- a/day-2/script.ts
+++ b/day-2/script.ts
@@ -26,6 +26,23 @@ function isPossible(
   }, true);
 }
 
+function getMinimalPossibleDraw(draws: Draw[]) {
+  return COLORS.reduce(
+    (acc, color) => {
+      acc[color] = draws.reduce((max, draw) => {
+        return Math.max(draw[color], max);
+      }, 0);
+
+      return acc;
+    },
+    { red: 0, green: 0, blue: 0 },
+  );
+}
+
+function power(draw: Draw) {
+  return Object.values(draw).reduce((product, value) => product * value, 1);
+}
+
 const result = input
   .split("\n")
   .slice(0, -1)
@@ -46,7 +63,7 @@ const result = input
     });
     return { id, draws };
   })
-  .filter((game) => isPossible(game))
-  .reduce((acc, game) => acc + game.id, 0);
+  .map((game) => getMinimalPossibleDraw(game.draws))
+  .reduce((acc, draw) => acc + power(draw), 0);
 
 console.log({ result });