20201210

20201210/main.go

@@ -0,0 +1,29 @@
+package main
+
+func main() {
+
+}
+
+func replace(src string) string {
+	var ret []rune
+	l := len(src)
+	cursor := 0
+	for {
+		if cursor == l {
+			break
+		}
+		if cursor < l-1 && src[cursor] == '(' && src[cursor+1] == ')' {
+			ret = append(ret, 'o')
+			cursor += 2
+			continue
+		}
+		if cursor < l-3 && src[cursor] == '(' && src[cursor+3] == ')' {
+			ret = append(ret, []rune{'a', 'l'}...)
+			cursor += 4
+			continue
+		}
+		ret = append(ret, rune(src[cursor]))
+		cursor++
+	}
+	return string(ret)
+}

20201210/main_test.go

@@ -0,0 +1,43 @@
+package main
+
+import "testing"
+
+func Test_replace(t *testing.T) {
+	type args struct {
+		src string
+	}
+	tests := []struct {
+		name string
+		args args
+		want string
+	}{
+		{
+			"test1",
+			args{
+				"G()(al)",
+			},
+			"Goal",
+		},
+		{
+			"test2",
+			args{
+				"G()()()()(al)",
+			},
+			"Gooooal",
+		},
+		{
+			"test3",
+			args{
+				"(al)G(al)()()G",
+			},
+			"alGalooG",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := replace(tt.args.src); got != tt.want {
+				t.Errorf("replace() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}