2021 day 10 (1470/1321), easy-ish balanced parens implementation

2026-06-07 12:45:10 +02:00 · 2021-12-10 13:39:40 -05:00
parent 306222a790
commit 46d1c4a5a9
2 changed files with 167 additions and 0 deletions
@@ -0,0 +1,57 @@
+package main
+
+import (
+	"testing"
+)
+
+var example = `[({(<(())[]>[[{[]{<()<>>
+[(()[<>])]({[<{<<[]>>(
+{([(<{}[<>[]}>{[]{[(<()>
+(((({<>}<{<{<>}{[]{[]{}
+[[<[([]))<([[{}[[()]]]
+[{[{({}]{}}([{[{{{}}([]
+{<[[]]>}<{[{[{[]{()[[[]
+[<(<(<(<{}))><([]([]()
+<{([([[(<>()){}]>(<<{{
+<{([{{}}[<[[[<>{}]]]>[]]`
+
+func Test_syntaxScoring(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		part  int
+		want  int
+	}{
+		{
+			name:  "example",
+			input: example,
+			part:  1,
+			want:  26397,
+		},
+		{
+			name:  "actual",
+			input: input,
+			part:  1,
+			want:  387363,
+		},
+		{
+			name:  "example",
+			input: example,
+			part:  2,
+			want:  288957,
+		},
+		{
+			name:  "actual",
+			input: input,
+			part:  2,
+			want:  4330777059,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := syntaxScoring(tt.input, tt.part); got != tt.want {
+				t.Errorf("part1() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}