Feat: done

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "docs/template"]
+	path = docs/template
+	url = ../typst-template

Makefile

@@ -0,0 +1,16 @@
+.PHONY: all watch clean
+
+SOURCE := $(shell find docs/ -type f -name '*.typ')
+TARGET := docs/main.pdf
+TYPST_ARGS += --root .
+
+all: $(TARGET)
+
+docs/main.pdf: docs/main.typ $(SOURCE)
+	typst compile $(TYPST_ARGS) $<
+
+watch:
+	typst watch --root . docs/main.typ
+
+clean:
+	-rm docs/main.pdf

docs/main.typ

@@ -0,0 +1,20 @@
+#import "template/module.typ": *
+
+#show: default.with(
+  title: "Golang Homework 5",
+  authors: ((
+    name: "Yi-Ting Shih (111550013)",
+    affiliation: "National Yang Ming Chaio Tung University",
+    email: "ytshih@cs.nycu.edu.tw",
+  ),),
+)
+
+== Code
+
+#code(read("../reverse.go"))
+
+This code doesn't allocate new memory except array subscript `i, l, r`.
+
+== Result
+
+#code(read("../result"))

go.mod

@@ -0,0 +1,3 @@
+module reverse
+
+go 1.25.1

result

@@ -0,0 +1,5 @@
+> go test -v
+=== RUN   TestReverse
+--- PASS: TestReverse (0.00s)
+PASS
+ok      reverse 0.001s

reverse.go

@@ -0,0 +1,31 @@
+package reverse
+
+import "unicode/utf8"
+
+func swap(a *byte, b *byte) {
+	*a ^= *b
+	*b ^= *a
+	*a ^= *b
+}
+
+func reverse(b []byte) {
+	for i := 0; i < len(b); {
+		_, sz := utf8.DecodeRune(b[i:])
+		l := i
+		r := i + sz - 1
+		for l < r {
+			swap(&b[l], &b[r])
+			l++
+			r--
+		}
+		i += sz
+	}
+
+	l := 0
+	r := len(b) - 1
+	for l < r {
+		swap(&b[l], &b[r])
+		l++
+		r--
+	}
+}

reverse_test.go

@@ -0,0 +1,21 @@
+package reverse
+
+import "testing"
+
+func TestReverse(t *testing.T) {
+	tcs := []struct {
+		input   string
+		expects string
+	}{
+		{"Hello 世界", "界世 olleH"},
+	}
+
+	for _, tc := range tcs {
+		b := []byte(tc.input)
+		reverse(b)
+		ret := string(b)
+		if ret != tc.expects {
+			t.Errorf("Failed to remove unicode space. Input: %s, expects: %s, results: %s", tc.input, tc.expects, ret)
+		}
+	}
+}