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fix(Go): Update array_queue.go and array_deque.go (#1362)
* 🐞 fix: 队列为空时不应该操作指向 * 🧪 test: 添加pop测试用例 * 🔧 build: 修改testify依赖包 * 🐞 fix: 双向队列为空时,pop不操作指向 * 🔧 build: Remove third-party packages * Delete codes/go/go.sum --------- Co-authored-by: Yudong Jin <krahets@163.com>
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3 changed files with 14 additions and 0 deletions
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@ -72,6 +72,9 @@ func (q *arrayDeque) pushLast(num int) {
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/* 队首出队 */
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/* 队首出队 */
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func (q *arrayDeque) popFirst() any {
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func (q *arrayDeque) popFirst() any {
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num := q.peekFirst()
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num := q.peekFirst()
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if num == nil {
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return nil
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}
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// 队首指针向后移动一位
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// 队首指针向后移动一位
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q.front = q.index(q.front + 1)
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q.front = q.index(q.front + 1)
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q.queSize--
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q.queSize--
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@ -81,6 +84,9 @@ func (q *arrayDeque) popFirst() any {
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/* 队尾出队 */
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/* 队尾出队 */
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func (q *arrayDeque) popLast() any {
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func (q *arrayDeque) popLast() any {
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num := q.peekLast()
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num := q.peekLast()
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if num == nil {
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return nil
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}
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q.queSize--
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q.queSize--
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return num
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return num
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}
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}
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@ -49,6 +49,10 @@ func (q *arrayQueue) push(num int) {
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/* 出队 */
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/* 出队 */
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func (q *arrayQueue) pop() any {
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func (q *arrayQueue) pop() any {
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num := q.peek()
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num := q.peek()
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if num == nil {
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return nil
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}
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// 队首指针向后移动一位,若越过尾部,则返回到数组头部
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// 队首指针向后移动一位,若越过尾部,则返回到数组头部
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q.front = (q.front + 1) % q.queCapacity
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q.front = (q.front + 1) % q.queCapacity
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q.queSize--
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q.queSize--
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@ -46,9 +46,13 @@ func TestQueue(t *testing.T) {
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}
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}
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func TestArrayQueue(t *testing.T) {
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func TestArrayQueue(t *testing.T) {
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// 初始化队列,使用队列的通用接口
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// 初始化队列,使用队列的通用接口
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capacity := 10
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capacity := 10
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queue := newArrayQueue(capacity)
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queue := newArrayQueue(capacity)
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if queue.pop() != nil {
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t.Errorf("want:%v,got:%v", nil, queue.pop())
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}
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// 元素入队
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// 元素入队
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queue.push(1)
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queue.push(1)
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