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mirror of https://github.com/Didnelpsun/CS408.git synced 2026-10-31 20:35:08 +08:00

更新队列

This commit is contained in:
Didnelpsun
2021-09-18 23:58:01 +08:00
parent e19b4bd5ae
commit dfc81c7e13
13 changed files with 299 additions and 51 deletions

View File

@@ -183,10 +183,10 @@ bool PriorInsertLinkList(LinkList &list, element_type *elem, int start, int leng
// 删除
element_type *DeleteLinkListWithHead(LinkList &list, int index, int length) {
auto *data = (element_type *) malloc(length * sizeof(element_type));
auto *elem = (element_type *) malloc(length * sizeof(element_type));
if (index < 1) {
printf("DeleteLinkListWithHead:删除索引值%d过小!\n", index);
return data;
return elem;
}
if (length < 1) {
printf("DeleteLinkListWithHead:删除长度%d过小!\n", length);
@@ -202,7 +202,7 @@ element_type *DeleteLinkListWithHead(LinkList &list, int index, int length) {
// 如果链表没有任何数据
if (start == nullptr) {
printf("DeleteLinkListWithHead:链表为空!\n");
return data;
return elem;
}
// 循环遍历到达指定索引号的单链表的结点
// 条件是当前结点的下一个不为空且索引号到达,所到达的结点一定不是空结点
@@ -213,16 +213,16 @@ element_type *DeleteLinkListWithHead(LinkList &list, int index, int length) {
// 如果此时i小于index-1,表示遍历完还没有到达对应的索引
if (i < index - 1) {
printf("DeleteLinkListWithHead:删除索引值%d过大!\n", index);
return data;
return elem;
}
// 此时i==index-1,start到达,求end
end = start;
for (int i = 0; i < length; i++) {
data[i] = end->data;
elem[i] = end->data;
end = end->next;
if (end == nullptr) {
printf("DeleteLinkListWithHead:删除索引最大值%d大于链表最大索引%d!\n", index + length - 1, length - 1);
return data;
return elem;
}
}
if (index == 1) {
@@ -230,14 +230,14 @@ element_type *DeleteLinkListWithHead(LinkList &list, int index, int length) {
} else {
start->next = end->next;
}
return data;
return elem;
}
element_type *DeleteLinkListWithoutHead(LinkList &list, int index, int length) {
auto *data = (element_type *) malloc(length * sizeof(element_type));
auto *elem = (element_type *) malloc(length * sizeof(element_type));
if (index < 0) {
printf("DeleteLinkListWithoutHead:删除索引值过小!\n");
return data;
return elem;
}
if (length < 1) {
printf("DeleteLinkListWithoutHead:删除长度%d过小!\n", length);
@@ -253,7 +253,7 @@ element_type *DeleteLinkListWithoutHead(LinkList &list, int index, int length) {
// 如果链表没有任何数据
if (EmptyLinkList(list)) {
printf("DeleteLinkListWithoutHead:链表为空!\n");
return data;
return elem;
}
// 循环遍历到达指定索引号的单链表的结点
// 条件是当前结点的下一个不为空且索引号到达,所到达的结点一定不是空结点
@@ -264,16 +264,16 @@ element_type *DeleteLinkListWithoutHead(LinkList &list, int index, int length) {
// 如果此时i小于index-1,表示遍历完还没有到达对应的索引
if (i < index - 1) {
printf("DeleteLinkListWithoutHead:删除索引值%d过大!\n", index);
return data;
return elem;
}
// 到达位置
end = start;
for (int i = 0; i < length; i++) {
end = end->next;
data[i] = end->data;
elem[i] = end->data;
if (end->next == nullptr) {
printf("DeleteLinkListWithoutHead:删除索引最大值%d大于链表最大索引%d!\n", index + length - 1, length - 1);
return data;
return elem;
}
}
// 如果删除第一个第0号结点
@@ -282,7 +282,7 @@ element_type *DeleteLinkListWithoutHead(LinkList &list, int index, int length) {
start->next = end->next->next;
}
start->next = end->next;
return data;
return elem;
}
// 求表长

View File

@@ -3,7 +3,7 @@
// 链队结点
typedef struct LinkQueueNode {
// 数据
element_type* data;
element_type data;
// 指针
struct LinkQueueNode *next;
} LinkQueueNode;
@@ -12,4 +12,55 @@ typedef struct LinkQueueNode {
typedef struct {
// 队头指针和队尾指针
LinkQueueNode *front, *rear;
} LinkQueue;
} LinkQueue;
// 初始化
bool InitLinkQueue(LinkQueue &queue){
// 建立头节点
queue.front = queue.rear = (LinkQueueNode*) malloc(sizeof(LinkQueueNode));
// 初始为空
queue.front->next = nullptr;
queue.front->data = DEFAULTELEM;
return true;
}
LinkQueue InitLinkQueue(){
auto* queue = (LinkQueue*) malloc(sizeof(LinkQueue));
queue->front = queue->rear = (LinkQueueNode*) malloc(sizeof(LinkQueueNode));
// 初始为空
queue->front->next = nullptr;
queue->front->data = DEFAULTELEM;
return (LinkQueue &) queue;
}
// 判空
bool EmptyLinkQueue(LinkQueue queue){
return queue.front==queue.rear;
}
// 入队
bool EnterLinkQueue(LinkQueue &queue, element_type elem){
// 创建新结点
auto *node = (LinkQueueNode *) malloc(sizeof(LinkQueueNode));
node->data = elem;
node->next = nullptr;
// 把最后一个元素的next连接到node
queue.rear->next = node;
// 移动尾指针
queue.rear = node;
return true;
}
// 出队
element_type DepartLinkQueue(LinkQueue &queue){
if(EmptyLinkQueue(queue)){
printf("DepartLinkQueue:The queue is empty!");
return false;
}
// 获取对首元素下一个元素的数据
element_type elem = queue.front->next->data;
// 后移移位
queue.front->next=queue.front->next->next;
// 若队列空
return true;
}

View File

@@ -158,26 +158,27 @@ bool LoopInsertSequenceList(List &list, element_type *elem, int start, int end)
// 删除
template<class List>
bool DeleteSequenceList(List &list, int index, element_type &elem) {
element_type DeleteSequenceList(List &list, int index) {
if (index >= list.length || index < 0) {
printf("DeleteStaticSequenceList:删除索引超过索引范围!\n");
return false;
}
elem = list.data[index];
element_type elem = list.data[index];
for (int i = index; i < list.length; i++) {
list.data[i] = list.data[i + 1];
}
list.length--;
return true;
return elem;
}
// 删除多个元素
template<class List>
int MultiDeleteSequenceList(List &list, int index, int length, element_type *elem) {
element_type* MultiDeleteSequenceList(List &list, int index, int length) {
if (index + length >= list.length || index < 0) {
printf("MultiDeleteSequenceList:删除索引超过索引范围!\n");
return 1;
return nullptr;
}
auto elem = new element_type[length];
for (int i = index; i < list.length - length; i++) {
if (i < index + length) {
elem[i - index] = list.data[i];
@@ -185,7 +186,7 @@ int MultiDeleteSequenceList(List &list, int index, int length, element_type *ele
list.data[i] = list.data[i + length];
}
list.length -= length;
return 0;
return elem;
}
// 按位查找顺序表元素

View File

@@ -100,9 +100,9 @@ element_type DepartCircularDepartSequence(SequenceQueue &queue) {
printf("DepartCircularDepartSequence:队空无法出队!\n");
return DEFAULTELEM;
}
element_type temp = queue.data[queue.front];
element_type elem = queue.data[queue.front];
queue.front = (queue.front + 1) % queue.max_size;
return temp;
return elem;
}
// 获取队长

View File

@@ -95,9 +95,9 @@ element_type PopLeftShareStack(ShareStack &stack){
printf("PopLeftShareStack:栈空无法出栈!\n");
return DEFAULTELEM;
}
element_type temp = stack.data[stack.top_left];
element_type elem = stack.data[stack.top_left];
stack.top_left--;
return temp;
return elem;
}
// 右出栈
@@ -106,9 +106,9 @@ element_type PopRightShareStack(ShareStack &stack){
printf("PopRightShareStack:栈空无法出栈!\n");
return DEFAULTELEM;
}
element_type temp = stack.data[stack.top_right];
element_type elem = stack.data[stack.top_right];
stack.top_left++;
return temp;
return elem;
}
// 读取左首部

View File

@@ -1,4 +1,4 @@
// 测试文件
// ???????
#include <iostream>
#include "../head/sequence_list.h"
#include "../head/link_list.h"
@@ -21,8 +21,7 @@ bool SequenceListTest() {
PrintSequenceList(list);
printf("\n");
int len = 2;
element_type elem[2];
MultiDeleteSequenceList(list, 0, len, elem);
element_type* elem = MultiDeleteSequenceList(list, 0, len);
PrintSequenceList(list);
for (int i = 0; i < len; i++) {
printf("%c\n", elem[i]);
@@ -45,9 +44,9 @@ bool LinkListTest() {
element_type* data = DeleteLinkListWithoutHead(list, 2, length);
PrintLinkList(list);
for (int i = 0; i < length; i++) {
printf("第%d为%c\n", i, data[i]);
printf("??%d?%c\n", i, data[i]);
}
printf("长度为%d", GetLengthLinkList(list));
printf("%c地址%d", '3', LocateLinkList(list, '3'));
printf("?????%d", GetLengthLinkList(list));
printf("%c???%d", '3', LocateLinkList(list, '3'));
return true;
}