From b8dba2d4e4b09bfa26c657dbecb5459e74761bfc Mon Sep 17 00:00:00 2001 From: Dan Anglin Date: Sat, 2 Dec 2023 17:00:27 +0000 Subject: [PATCH] feat: add solution for 2023, Day 2: Cube Conundrum --- 2023/day-2/files/input | 100 ++++++++++++++++++++++++++++ 2023/day-2/game.go | 95 +++++++++++++++++++++++++++ 2023/day-2/game_test.go | 62 ++++++++++++++++++ 2023/day-2/main.go | 140 ++++++++++++++++++++++++++++++++++++++++ 2023/day-2/main_test.go | 44 +++++++++++++ 5 files changed, 441 insertions(+) create mode 100644 2023/day-2/files/input create mode 100644 2023/day-2/game.go create mode 100644 2023/day-2/game_test.go create mode 100644 2023/day-2/main.go create mode 100644 2023/day-2/main_test.go diff --git a/2023/day-2/files/input b/2023/day-2/files/input new file mode 100644 index 0000000..f06a648 --- /dev/null +++ b/2023/day-2/files/input @@ -0,0 +1,100 @@ +Game 1: 7 blue, 6 green, 3 red; 3 red, 5 green, 1 blue; 1 red, 5 green, 8 blue; 3 red, 1 green, 5 blue +Game 2: 9 green, 1 blue, 12 red; 1 blue, 18 green, 8 red; 2 blue, 6 green, 13 red; 3 blue, 13 red, 7 green; 5 blue, 4 red, 4 green; 6 blue, 7 green, 4 red +Game 3: 5 blue, 9 red, 14 green; 10 green, 3 blue; 11 red, 2 blue, 8 green; 5 red, 2 blue; 5 blue, 7 green, 8 red +Game 4: 2 red, 3 blue, 2 green; 17 green, 6 blue, 1 red; 3 blue, 5 green, 1 red; 4 red, 1 blue, 16 green; 5 red, 4 blue, 13 green; 14 green, 5 blue, 6 red +Game 5: 3 red, 17 green, 10 blue; 9 blue, 5 green; 14 green, 9 blue, 11 red +Game 6: 4 green, 18 blue, 3 red; 6 green, 8 blue, 9 red; 4 green, 9 blue, 7 red; 9 red, 1 green, 12 blue +Game 7: 1 blue, 14 green; 1 red, 4 blue, 15 green; 3 blue, 6 green; 3 blue, 2 green, 1 red; 1 red, 3 green, 1 blue +Game 8: 10 red, 3 blue, 3 green; 5 blue, 7 red, 3 green; 3 red, 3 green, 11 blue; 1 red, 7 green, 10 blue; 13 blue, 5 green, 5 red; 1 green, 17 blue, 3 red +Game 9: 1 blue, 6 green; 7 green, 2 red; 3 red, 2 green; 1 blue, 4 red, 3 green; 7 green, 1 blue, 1 red +Game 10: 14 green, 6 blue, 1 red; 8 green, 5 red, 1 blue; 8 green, 5 blue, 5 red; 2 green, 3 blue, 5 red +Game 11: 1 blue, 2 green; 1 blue, 1 green, 7 red; 1 blue, 4 green, 7 red; 2 red, 2 green, 1 blue +Game 12: 5 blue, 12 green, 12 red; 11 green, 3 red; 14 green, 3 blue, 18 red +Game 13: 2 green, 6 red; 6 red, 5 blue; 7 red, 3 blue, 8 green; 7 red, 8 green; 3 blue, 2 green, 3 red; 1 blue, 8 red, 6 green +Game 14: 18 green, 6 blue, 5 red; 5 blue, 15 red, 19 green; 7 green, 11 blue, 20 red; 5 red, 18 green, 7 blue +Game 15: 3 red, 16 green, 1 blue; 11 green, 6 red, 1 blue; 12 green, 2 red; 17 green, 1 blue, 14 red +Game 16: 3 red, 2 green, 5 blue; 1 green, 6 blue, 1 red; 1 green, 2 blue, 3 red; 1 blue, 1 red; 5 blue, 1 green, 2 red +Game 17: 3 blue, 6 red; 1 blue, 2 red; 1 blue, 1 green, 7 red; 1 green, 7 red, 2 blue; 7 red, 1 blue; 1 green, 8 red, 1 blue +Game 18: 6 green, 10 red; 6 red, 7 green; 10 red, 11 green; 10 red, 2 blue, 5 green +Game 19: 2 blue; 1 blue, 4 green, 6 red; 7 green, 6 red, 2 blue; 2 blue, 5 red, 4 green; 1 green, 10 red +Game 20: 6 red, 5 green, 10 blue; 5 blue, 5 green, 9 red; 7 blue, 3 green, 3 red; 9 blue, 12 red, 1 green +Game 21: 4 red, 18 blue, 14 green; 3 green, 14 blue, 5 red; 5 green, 12 blue; 1 blue, 2 red, 1 green; 5 red, 11 green, 7 blue; 17 green, 4 red, 15 blue +Game 22: 1 blue, 14 green, 4 red; 7 green, 10 red; 9 green, 1 blue, 9 red; 1 blue, 8 green, 5 red +Game 23: 4 blue, 5 green, 2 red; 6 blue, 8 red, 4 green; 4 blue, 17 red, 14 green +Game 24: 3 green, 8 blue; 3 blue, 5 green, 13 red; 17 red, 4 green +Game 25: 19 red, 9 blue, 1 green; 3 green, 18 red, 6 blue; 1 green, 7 red, 7 blue; 8 blue, 1 red +Game 26: 10 green, 12 blue, 2 red; 9 red; 10 blue, 12 green, 9 red +Game 27: 2 blue, 8 green, 6 red; 5 green, 9 red; 4 red, 11 green +Game 28: 10 blue, 20 red; 14 blue, 3 green, 2 red; 9 red, 12 blue, 1 green +Game 29: 4 red, 1 blue, 2 green; 1 green, 6 red, 1 blue; 15 red +Game 30: 1 red, 13 blue, 6 green; 3 blue, 4 green; 19 blue, 11 green; 1 red, 11 green, 14 blue +Game 31: 10 red, 12 green; 12 green, 10 red; 2 blue, 15 red, 12 green; 2 green, 2 blue, 15 red; 9 green, 5 red, 2 blue +Game 32: 5 blue, 5 green, 8 red; 5 green, 6 red; 5 blue, 8 red, 4 green; 5 green, 3 blue, 6 red +Game 33: 1 red, 9 green, 5 blue; 17 green, 4 blue; 3 green, 2 blue; 10 green, 2 blue; 1 blue, 4 green; 2 green, 9 blue +Game 34: 11 blue, 11 red, 9 green; 13 red, 3 blue, 5 green; 9 green, 12 blue, 5 red; 13 red, 8 blue, 5 green +Game 35: 1 green, 3 red, 7 blue; 1 red, 3 green, 9 blue; 1 blue, 2 green, 1 red; 11 blue, 5 red, 6 green +Game 36: 4 blue, 12 green, 16 red; 7 blue, 11 green; 8 green, 5 blue, 1 red; 14 green, 3 red +Game 37: 13 red, 5 blue, 9 green; 1 red, 10 blue, 14 green; 1 green, 2 blue, 10 red; 13 red, 10 blue; 1 blue, 8 green +Game 38: 3 red, 4 blue, 8 green; 1 red, 11 blue, 4 green; 13 blue, 8 green; 3 red, 3 green, 10 blue; 1 red, 1 blue, 1 green; 1 green, 2 red, 10 blue +Game 39: 9 red, 7 blue, 1 green; 15 red, 4 green, 1 blue; 2 green, 8 blue, 7 red; 6 blue, 11 red; 12 red, 2 blue, 7 green +Game 40: 13 red, 3 green, 1 blue; 3 green, 10 red; 16 red +Game 41: 1 blue, 3 red; 7 blue, 5 red, 3 green; 4 red, 3 blue, 2 green; 2 blue, 5 red, 1 green; 3 green, 4 red, 3 blue; 5 blue, 2 red +Game 42: 1 red, 4 green; 11 red, 4 green; 13 red; 1 blue, 10 red; 1 blue, 2 red, 4 green +Game 43: 11 green, 13 red, 1 blue; 11 green, 9 red, 2 blue; 7 green; 13 green, 15 red; 1 blue, 14 green +Game 44: 5 green, 14 blue, 15 red; 13 blue, 15 green; 9 green, 15 red, 6 blue +Game 45: 16 red, 8 blue; 1 green, 4 blue, 6 red; 4 blue, 8 red; 12 red, 3 blue, 3 green; 2 green, 4 red, 4 blue; 2 green, 8 blue, 10 red +Game 46: 12 blue, 3 green, 12 red; 9 red, 9 blue; 3 green, 12 red; 10 red, 6 green; 2 red, 7 blue +Game 47: 9 green, 6 red; 1 blue, 7 red, 10 green; 1 green, 2 red; 1 red, 3 green +Game 48: 9 blue, 5 green, 13 red; 14 green, 4 red; 15 red, 9 green, 1 blue; 4 blue, 6 red, 13 green; 9 green, 8 blue, 8 red +Game 49: 5 blue, 3 red; 1 green, 2 red, 5 blue; 1 green, 7 blue; 3 green +Game 50: 8 red, 6 green; 10 blue, 4 green, 6 red; 8 green, 11 blue, 9 red +Game 51: 5 blue; 13 blue; 1 red, 2 blue, 1 green; 1 red, 8 blue +Game 52: 7 blue; 1 red, 2 green, 12 blue; 1 red, 5 blue; 2 red, 7 blue, 4 green; 3 green, 2 red, 2 blue +Game 53: 10 blue, 12 red; 3 green, 5 blue, 3 red; 14 red, 4 green, 7 blue; 1 red, 14 blue +Game 54: 2 blue, 14 red, 3 green; 3 green, 7 red; 2 blue, 3 green, 9 red; 3 green, 7 red; 1 green, 14 red, 1 blue +Game 55: 3 green, 9 red, 12 blue; 5 blue, 5 green, 2 red; 7 green, 14 red, 12 blue +Game 56: 1 blue, 3 red, 4 green; 5 red, 8 green, 1 blue; 3 green, 1 blue, 2 red +Game 57: 8 blue, 13 red, 2 green; 3 blue, 5 red; 7 red, 2 green; 2 red, 5 blue, 3 green; 1 green, 4 blue +Game 58: 4 green, 3 red, 2 blue; 5 green, 2 blue, 10 red; 11 green, 1 red, 2 blue; 4 red, 5 green +Game 59: 5 green; 4 green, 2 blue; 1 red, 9 green; 7 green, 2 blue; 16 green, 1 blue +Game 60: 6 green, 5 blue, 1 red; 5 blue, 3 green, 6 red; 1 green, 5 blue, 14 red; 6 red, 4 blue, 3 green +Game 61: 2 green, 6 red, 6 blue; 6 blue, 3 red; 1 green, 2 red, 2 blue; 1 red, 2 green; 5 red, 1 green, 2 blue; 2 green, 6 red, 6 blue +Game 62: 18 green, 8 blue, 1 red; 8 green, 4 red; 13 blue, 1 red, 3 green; 7 blue, 2 green, 4 red; 4 blue, 12 green, 5 red; 12 green, 11 blue +Game 63: 2 red, 3 blue; 10 green, 13 red, 1 blue; 11 red, 3 green, 4 blue +Game 64: 1 green, 16 red; 17 blue, 9 red, 1 green; 14 red, 7 blue +Game 65: 7 blue, 11 red, 11 green; 7 red, 11 green; 3 blue, 13 red, 11 green; 5 green, 6 blue; 11 blue, 8 red, 3 green +Game 66: 3 blue, 1 green, 3 red; 5 blue, 2 green, 5 red; 1 blue, 2 green, 7 red; 2 blue, 6 red; 7 red, 2 green, 2 blue; 2 red +Game 67: 1 blue, 6 red, 2 green; 1 blue, 10 green, 6 red; 8 red, 2 blue, 4 green; 7 green, 9 red, 1 blue; 8 red, 7 green; 5 green, 1 blue +Game 68: 15 blue, 8 green, 2 red; 6 blue, 2 green; 5 red, 6 green, 8 blue; 6 red, 11 green, 7 blue; 1 red, 3 blue; 5 red, 6 green, 5 blue +Game 69: 5 blue, 4 green; 1 green, 11 red, 9 blue; 4 green, 15 blue, 6 red; 11 blue, 4 green, 5 red; 8 red, 3 green; 5 blue, 8 red +Game 70: 5 blue, 4 red, 8 green; 6 blue, 6 green; 14 blue, 7 red, 1 green; 2 green, 6 blue, 3 red; 7 red, 11 blue, 3 green +Game 71: 13 red, 6 blue, 10 green; 7 red, 12 green; 9 green, 14 red, 2 blue +Game 72: 9 red, 3 green, 3 blue; 8 red, 7 blue, 5 green; 3 blue, 2 green, 1 red; 1 red, 2 blue, 2 green; 10 red, 7 green, 6 blue +Game 73: 4 green, 3 red; 1 red; 2 red, 2 blue, 2 green; 1 blue, 3 red, 1 green; 2 blue, 3 red, 2 green; 1 red, 1 blue +Game 74: 12 green, 4 red, 4 blue; 3 red, 13 green; 1 red, 13 green, 1 blue; 1 red, 3 blue, 6 green; 6 blue, 5 red, 4 green; 7 blue, 5 green, 1 red +Game 75: 11 red, 1 green; 12 blue, 1 red; 2 blue, 1 green, 4 red; 11 red; 12 red, 6 green, 10 blue; 4 green, 5 blue, 7 red +Game 76: 2 blue, 5 red, 6 green; 1 red, 10 green, 11 blue; 7 red, 11 green; 4 red, 10 blue, 10 green; 7 blue, 16 green, 2 red +Game 77: 2 blue, 11 red, 4 green; 6 green, 3 blue, 2 red; 2 blue, 2 red, 7 green; 8 red, 14 blue, 5 green; 5 green, 2 blue, 18 red +Game 78: 9 red, 7 green, 6 blue; 12 blue, 6 red; 1 red, 15 blue, 7 green; 3 blue, 11 green, 1 red +Game 79: 3 blue; 1 blue; 1 red, 1 blue, 1 green; 3 blue; 5 blue, 1 red; 1 blue, 1 green, 1 red +Game 80: 18 blue, 13 green, 7 red; 18 blue, 3 green, 3 red; 2 red, 9 blue, 14 green +Game 81: 11 blue, 6 green, 3 red; 8 green, 12 red, 10 blue; 5 red, 4 blue, 13 green +Game 82: 2 blue, 3 red; 4 blue, 17 red; 9 red; 12 red; 1 green, 6 blue, 7 red; 20 red +Game 83: 1 blue, 1 red; 3 red, 1 blue; 3 red, 5 green; 1 blue, 2 green, 4 red; 5 green, 3 blue, 2 red +Game 84: 4 red, 2 blue, 2 green; 8 red, 10 blue; 1 green, 15 red, 8 blue +Game 85: 15 green; 11 red, 2 blue, 5 green; 8 red, 2 blue, 12 green; 15 red, 10 green; 10 red, 15 green; 17 red, 1 blue, 11 green +Game 86: 6 blue, 1 red; 2 green, 1 red, 8 blue; 2 green, 10 blue; 10 blue, 2 green; 1 red, 5 blue +Game 87: 4 red, 4 blue; 18 red, 8 blue; 16 red; 4 red, 1 green, 3 blue; 14 red, 9 blue +Game 88: 11 green, 7 blue, 4 red; 3 red; 2 blue, 12 red, 19 green; 13 red, 3 blue, 2 green +Game 89: 1 green, 1 red; 1 blue, 1 red, 6 green; 6 green, 3 red; 5 green, 2 red, 6 blue; 7 blue, 2 red, 8 green; 1 red, 2 blue +Game 90: 3 green, 3 red, 3 blue; 5 green, 2 blue, 3 red; 1 blue, 2 red; 11 green, 1 blue, 2 red; 1 green, 3 blue, 4 red +Game 91: 7 blue, 2 red; 2 blue, 1 red, 1 green; 6 blue, 1 red; 1 red, 7 blue +Game 92: 11 green, 16 blue; 17 red, 7 blue, 9 green; 11 green, 3 blue, 12 red; 2 blue, 1 green, 6 red +Game 93: 6 red, 1 blue, 3 green; 1 blue, 8 red, 7 green; 3 red, 5 green; 1 red, 2 green; 3 red, 7 green; 2 green, 15 red, 1 blue +Game 94: 7 blue, 2 red, 2 green; 9 blue, 4 red, 2 green; 9 blue, 5 red, 3 green; 1 blue, 4 red, 3 green; 4 red, 1 green, 7 blue; 9 blue, 3 green, 3 red +Game 95: 1 blue, 2 green, 2 red; 6 green, 6 red, 1 blue; 3 blue, 5 red, 2 green; 1 blue; 5 green, 2 red, 2 blue +Game 96: 3 blue, 6 red, 5 green; 5 blue, 8 green, 9 red; 2 red, 5 green, 1 blue; 6 green, 4 blue, 3 red; 2 green, 2 blue; 6 blue, 4 green +Game 97: 6 green, 8 blue, 5 red; 9 green, 6 blue; 3 green, 3 blue; 2 blue, 10 green, 4 red +Game 98: 11 blue, 1 green, 9 red; 5 green, 1 blue, 6 red; 13 blue, 6 green, 10 red; 6 blue, 4 green, 9 red +Game 99: 4 red, 3 green, 3 blue; 6 blue, 4 green, 11 red; 3 green, 15 red; 1 blue, 6 green, 14 red +Game 100: 14 green, 6 blue, 12 red; 2 green, 1 blue, 2 red; 12 red, 7 blue, 3 green; 1 blue, 12 red, 8 green diff --git a/2023/day-2/game.go b/2023/day-2/game.go new file mode 100644 index 0000000..e1f88c6 --- /dev/null +++ b/2023/day-2/game.go @@ -0,0 +1,95 @@ +package main + +import ( + "fmt" + "strconv" + "strings" +) + +type Game struct { + ID int + Sets []Set +} + +type Set struct { + Red int + Green int + Blue int +} + +func parseGame(line string) (Game, error) { + splits := strings.SplitN(strings.ReplaceAll(line, " ", ""), ":", 2) + + if len(splits) != 2 { + return Game{}, fmt.Errorf("unexpected number of splits from %s; want 2; got %d", splits, len(splits)) + } + + gameStr, setsStr := splits[0], splits[1] + + gameID, err := parseGameID(gameStr) + if err != nil { + return Game{}, fmt.Errorf("unable to parse the Game ID; %w", err) + } + + sets, err := parseSets(setsStr) + if err != nil { + return Game{}, fmt.Errorf("unable to parse the sets; %w", err) + } + + game := Game{ + ID: gameID, + Sets: sets, + } + + return game, nil +} + +func parseGameID(game string) (int, error) { + id, err := strconv.Atoi(strings.TrimPrefix(game, "Game")) + if err != nil { + return 0, fmt.Errorf("error running strconv.Atoi(); %w", err) + } + + return id, nil +} + +func parseSets(str string) ([]Set, error) { + setList := strings.Split(str, ";") + var sets []Set + + const ( + red = "red" + green = "green" + blue = "blue" + ) + + for _, s := range setList { + set := Set{0, 0, 0} + split := strings.Split(s, ",") + for _, i := range split { + switch { + case strings.HasSuffix(i, red): + value, err := strconv.Atoi(strings.TrimSuffix(i, red)) + if err != nil { + return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err) + } + set.Red = value + case strings.HasSuffix(i, green): + value, err := strconv.Atoi(strings.TrimSuffix(i, green)) + if err != nil { + return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err) + } + set.Green = value + case strings.HasSuffix(i, "blue"): + value, err := strconv.Atoi(strings.TrimSuffix(i, blue)) + if err != nil { + return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err) + } + set.Blue = value + } + } + sets = append(sets, set) + } + + return sets, nil +} diff --git a/2023/day-2/game_test.go b/2023/day-2/game_test.go new file mode 100644 index 0000000..3376d95 --- /dev/null +++ b/2023/day-2/game_test.go @@ -0,0 +1,62 @@ +package main + +import ( + "reflect" + "testing" +) + +func TestParseGame(t *testing.T) { + table := []struct { + testGame string + want Game + }{ + { + testGame: "Game1: 10 green, 1 blue, 7red", + want: Game{ + ID: 1, + Sets: []Set{ + { + Red: 7, + Green: 10, + Blue: 1, + }, + }, + }, + }, + { + testGame: "Game 100: 8 green, 6 blue, 20red; 5 blue, 4 red, 13green; 5 green, 1 red", + want: Game{ + ID: 100, + Sets: []Set{ + { + Red: 20, + Green: 8, + Blue: 6, + }, + { + Red: 4, + Green: 13, + Blue: 5, + }, + { + Red: 1, + Green: 5, + Blue: 0, + }, + }, + }, + }, + } + + for i := range table { + got, err := parseGame(table[i].testGame) + if err != nil { + t.Fatalf("Error running parseGame(); %v", err) + } + + if !reflect.DeepEqual(table[i].want, got) { + t.Errorf("unexpected result after parsing the game; want %+v, got %+v", table[i].want, got) + } + + } +} diff --git a/2023/day-2/main.go b/2023/day-2/main.go new file mode 100644 index 0000000..50a5033 --- /dev/null +++ b/2023/day-2/main.go @@ -0,0 +1,140 @@ +package main + +import ( + "bufio" + "fmt" + "io" + "log" + "os" +) + +func main() { + filename := "2023/day-2/files/input" + + file1, err := os.Open(filename) + if err != nil { + log.Fatalf("ERROR: unable to open %s, %v\n", filename, err) + } + defer file1.Close() + + sumOfIDs, err := sumOfGameIDs(file1) + if err != nil { + log.Fatalf("ERROR: unable to calculate the sum of the IDs of the valid games; %v\n", err) + } + + fmt.Printf("Total sum of the IDs of the valid games: %d\n", sumOfIDs) + + file2, err := os.Open(filename) + if err != nil { + log.Fatalf("ERROR: unable to open %s, %v\n", filename, err) + } + defer file2.Close() + + sumOfPower, err := sumOfThePowerOfTheCubes(file2) + if err != nil { + log.Fatalf("ERROR: unable to calculate the sum of the power of cubes; %v\n", err) + } + + fmt.Printf("Total sum of the power of cubes: %d\n", sumOfPower) +} + +// sumOfGameIDs solves Part 1 +func sumOfGameIDs(r io.Reader) (int, error) { + scanner := bufio.NewScanner(r) + + sum := 0 + + for scanner.Scan() { + line := scanner.Text() + + if len(line) == 0 { + continue + } + + game, err := parseGame(line) + if err != nil { + return 0, fmt.Errorf("unable to parse %q; %w", game, err) + } + + if validGame(game.Sets) { + sum = sum + game.ID + } + } + + if err := scanner.Err(); err != nil { + return 0, fmt.Errorf("received an error after scanning file; %w", err) + } + + return sum, nil +} + +// sumOfThePowerOfTheCubes solves Part 2 +func sumOfThePowerOfTheCubes(r io.Reader) (int, error) { + scanner := bufio.NewScanner(r) + + sum := 0 + + for scanner.Scan() { + line := scanner.Text() + + if len(line) == 0 { + continue + } + + game, err := parseGame(line) + if err != nil { + return 0, fmt.Errorf("unable to parse %q; %w", game, err) + } + + fewestCubeSet := fewestSet(game.Sets) + + sum = sum + (fewestCubeSet.Red * fewestCubeSet.Green * fewestCubeSet.Blue) + } + + if err := scanner.Err(); err != nil { + return 0, fmt.Errorf("received an error after scanning file; %w", err) + } + + return sum, nil +} + +func validGame(sets []Set) bool { + const ( + maxRed = 12 + maxGreen = 13 + maxBlue = 14 + ) + + for _, set := range sets { + switch { + case set.Red > maxRed: + return false + case set.Blue > maxBlue: + return false + case set.Green > maxGreen: + return false + } + } + + return true +} + +func fewestSet(sets []Set) Set { + result := Set{0, 0, 0} + + for _, set := range sets { + if set.Red > result.Red { + result.Red = set.Red + } + + if set.Green > result.Green { + result.Green = set.Green + } + + if set.Blue > result.Blue { + result.Blue = set.Blue + } + } + + return result +} diff --git a/2023/day-2/main_test.go b/2023/day-2/main_test.go new file mode 100644 index 0000000..51e4f5f --- /dev/null +++ b/2023/day-2/main_test.go @@ -0,0 +1,44 @@ +package main + +import ( + "bytes" + "testing" +) + +var testStr = ` +Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green +Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue +Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red +Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red +Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green +` + +func TestSumOfGameIDs(t *testing.T) { + buf := bytes.NewBufferString(testStr) + + got, err := sumOfGameIDs(buf) + if err != nil { + t.Fatalf("Received an error after running sumOfGameIDs(); %v\n", err) + } + + want := 8 + + if got != want { + t.Errorf("unexpected result received from sumOfGameIDs(); want %d, got %d\n", want, got) + } +} + +func TestSumOfThePowerOfTheCubes(t *testing.T) { + buf := bytes.NewBufferString(testStr) + + got, err := sumOfThePowerOfTheCubes(buf) + if err != nil { + t.Fatalf("Received an error after running sumOfThePowerOfTheCubes(); %v\n", err) + } + + want := 2286 + + if got != want { + t.Errorf("unexpected result received from sumOfThePowerOfTheCubes(); want %d; got %d", want, got) + } +}