day21 - me being stupid ...

day21/day.go

@@ -123,25 +123,26 @@ func Part1(puzzle tools.AoCPuzzle) interface{} {
 	goldSpent := 0
 
 	minGold := math.MaxInt32
-	// completely ignoring rings for p1 as they are way too expensive in any case
 	for _, weaponStats := range weapons {
 		for _, armorStats := range armor {
 			goldSpent = weaponStats["cost"] + armorStats["cost"]
-			playerPower = weaponStats["damage"]
-			playerArmor = armorStats["armor"]
+			for ring1Name, ring1Stats := range rings {
+				for ring2Name, ring2Stats := range rings {
+					if ring1Name == ring2Name {
+						continue
+					}
+					goldSpent = weaponStats["cost"] + armorStats["cost"] + ring1Stats["cost"] + ring2Stats["cost"]
+					playerPower = weaponStats["damage"] + ring1Stats["damage"] + ring2Stats["damage"]
+					playerArmor = armorStats["armor"] + ring1Stats["armor"] + ring2Stats["armor"]
 
 					if fight(playerHp, playerPower, playerArmor, bossHp, bossPower, bossArmor) && goldSpent < minGold {
 						minGold = goldSpent
 					}
 				}
 			}
+		}
+	}
 
-	// REVISIT: The "correct" answer according to AoC website was 78, but that doesn't work!
-	// The only way to spent 78 Gold is by buying a Warhammer and the Splintmail
-	// That put the player damage at 6(weapon)-1(bossArmor) == 5
-	// And the boss damage becomes 8(input)-3(armor) == 5
-	// But the boss has 104 HP and the player only 100.
-	// Leaving the player dead after 20 Rounds with the boss still having 4 HP
 	return minGold
 }