数据结构-C语言代码 day 1-线性表的顺序存储结构
线性表基本内容：
线性表（List）：由零个或多个数据元素组成的有限序列。 首先它是一个序列，也就是说元素之间是有个先来后到的，即元素之间是有顺序的。 若元素存在多个，则第一个元素无前驱，而最后一个元素无后继，其他元素都有且只有一个前驱和后继。 另外，线性表强调是有限的，事实上无论计算机发展到多强大，它所处理的元素都是有限的。
线性表的顺序存储结构：顺序表
概念：用一组地址连续的存储单元依次存储线性表的数据元素，这种存储结构的线性表称为顺序表。
特点：逻辑上相邻的数据元素，物理次序也是相邻的。
1老师的代码
#include
#include
#define LIST_MAX_LENGTH 10
/**
* Linear list of integers. The key is data.
*/
typedef struct SequentialList {
int actualLength;
int data[LIST_MAX_LENGTH]; //The maximum length is fixed.
} *SequentialListPtr;
/**
* Output the list.
*/
void outputList(SequentialListPtr paraList) {
for(int i = 0; i < paraList->actualLength; i ++) {
printf("%d ", paraList->data[i]);
}// Of for i
printf("\r\n");
}// Of outputList
/**
* Output the memeory for the list.
*/
void outputMemory(SequentialListPtr paraListPtr) {
printf("The address of the structure: %ld\r\n", paraListPtr);
printf("The address of actualLength: %ld\r\n", ¶ListPtr->actualLength);
printf("The address of data: %ld\r\n", ¶ListPtr->data);
printf("The address of actual data: %ld\r\n", ¶ListPtr->data[0]);
printf("The address of second data: %ld\r\n", ¶ListPtr->data[1]);
}// Of outputMemory
/**
* Initialize a sequential list. No error checking for this function.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraValues An int array storing all elements.
*/
SequentialListPtr sequentialListInit(int paraData[], int paraLength) {
SequentialListPtr resultPtr = (SequentialList*)malloc(sizeof(SequentialList));
for (int i = 0; i < paraLength; i ++) {
resultPtr->data[i] = paraData[i];
}// Of for i
resultPtr->actualLength = paraLength;
return resultPtr;
}//Of sequentialListInit
/**
* Insert an element into a sequential linear list.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraPosition The position, e.g., 0 stands for inserting at the first position.
* @param paraValue The value to be inserted.
*/
void sequentialListInsert(SequentialListPtr paraListPtr, int paraPosition, int paraValue) {
// Step 1. Space check.
if (paraListPtr->actualLength >= LIST_MAX_LENGTH) {
printf("Cannot insert element: list full.\r\n");
return;
}//Of if
// Step 2. Position check.
if (paraPosition > paraListPtr->actualLength) {
printf("Cannot insert element: the position %d is bigger than the list length %d.\r\n", paraPosition, paraListPtr->actualLength);
return;
}//Of if
// Step 3. Move the remaining part.
for (int i = paraListPtr->actualLength; i > paraPosition; i --) {
paraListPtr->data[i] = paraListPtr->data[i - 1];
}//Of for i
// Step 4. Insert.
paraListPtr->data[paraPosition] = paraValue;
// Update the length.
paraListPtr->actualLength ++;
}// Of sequentialListInsert
/**
* Test the insert function.
*/
void sequentialInsertTest() {
int i;
int tempArray[5] = {3, 5, 2, 7, 4};
printf("---- sequentialInsertTest begins. ----\r\n");
// Initialize.
SequentialListPtr tempList = sequentialListInit(tempArray, 5);
printf("After initialization, the list is: ");
outputList(tempList);
// Insert to the first.
printf("Now insert to the first, the list is: ");
sequentialListInsert(tempList, 0, 8);
outputList(tempList);
// Insert to the last.
printf("Now insert to the last, the list is: ");
sequentialListInsert(tempList, 6, 9);
outputList(tempList);
// Insert beyond the tail.
printf("Now insert beyond the tail. \r\n");
sequentialListInsert(tempList, 8, 9);
printf("The list is:");
outputList(tempList);
// Insert to position 3.
for (i = 0; i < 5; i ++) {
printf("Inserting %d.\r\n", (i + 10));
sequentialListInsert(tempList, 0, (i + 10));
outputList(tempList);
}//Of for i
printf("---- sequentialInsertTest ends. ----\r\n");
}// Of sequentialInsertTest
/**
* Delete an element from a sequential linear list.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraPosition The position, e.g., 0 stands for inserting at the first position.
* @return The deleted value.
*/
int sequentialListDelete(SequentialListPtr paraListPtr, int paraPosition) {
// Step 1. Position check.
if (paraPosition < 0) {
printf("Invalid position: %d.\r\n", paraPosition);
return -1;
}//Of if
if (paraPosition >= paraListPtr->actualLength) {
printf("Cannot delete element: the position %d is beyond the list length %d.\r\n", paraPosition, paraListPtr->actualLength);
return -1;
}//Of if
// Step 2. Move the remaining part.
int resultValue = paraListPtr->data[paraPosition];
for (int i = paraPosition; i < paraListPtr->actualLength; i ++) {
paraListPtr->data[i] = paraListPtr->data[i + 1];
}//Of for i
// Step 3. Update the length.
paraListPtr->actualLength --;
// Step 4. Return the value.
return resultValue;
}// Of sequentialListDelete
/**
* Test the delete function.
*/
void sequentialDeleteTest() {
int tempArray[5] = {3, 5, 2, 7, 4};
printf("---- sequentialDeleteTest begins. ----\r\n");
// Initialize.
SequentialListPtr tempList = sequentialListInit(tempArray, 5);
printf("After initialization, the list is: ");
outputList(tempList);
// Delete the first.
printf("Now delete the first, the list is: ");
sequentialListDelete(tempList, 0);
outputList(tempList);
// Delete to the last.
printf("Now delete the last, the list is: ");
sequentialListDelete(tempList, 3);
outputList(tempList);
// Delete the second.
printf("Now delete the second, the list is: ");
sequentialListDelete(tempList, 1);
outputList(tempList);
// Delete the second.
printf("Now delete the 5th, the list is: ");
sequentialListDelete(tempList, 5);
outputList(tempList);
// Delete the second.
printf("Now delete the (-6)th, the list is: ");
sequentialListDelete(tempList, -6);
outputList(tempList);
printf("---- sequentialDeleteTest ends. ----\r\n");
outputMemory(tempList);
}// Of sequentialDeleteTest
/**
* Locate an element in the list.
* @param paraListPtr The pointer to the list.
* @param paraValue the indicated value.
* @return The position of the value, or -1 indicating not exists
*/
int locateElement(SequentialListPtr paraListPtr, int paraValue) {
for (int i = 0; i < paraListPtr->actualLength; i ++) {
if (paraListPtr->data[i] == paraValue) {
return i;
}// Of if
}//Of for i
return -1;
}// Of locateElement
/**
* Get an element in the list.
* @param paraListPtr The pointer to the list.
* @param paraPosition The given position.
* @return The position of the value, or -1 indicating not exists
*/
int getElement(SequentialListPtr paraListPtr, int paraPosition) {
// Step 1. Position check.
if (paraPosition < 0) {
printf("Invalid position: %d.\r\n", paraPosition);
return -1;
}//Of if
if (paraPosition >= paraListPtr->actualLength) {
printf("Cannot delete element: the position %d is beyond the list length %d.\r\n", paraPosition, paraListPtr->actualLength);
return -1;
}//Of if
return paraListPtr->data[paraPosition];
}// Of locateElement
/**
* Clear elements in the list.
* @param paraListPtr The pointer to the list.
* @return The position of the value, or -1 indicating not exists
*/
int clearList(SequentialListPtr paraListPtr) {
paraListPtr->actualLength = 0;
}// Of clearList
/**
The entrance.
*/
void main() {
sequentialInsertTest();
sequentialDeleteTest();
}// Of main
2 运行结果
---- sequentialInsertTest begins. ----
After initialization, the list is: 3 5 2 7 4
Now insert to the first, the list is: 8 3 5 2 7 4
Now insert to the last, the list is: 8 3 5 2 7 4 9
Now insert beyond the tail.
Cannot insert element: the position 8 is bigger than the list length 7.
The list is:8 3 5 2 7 4 9
Inserting 10.
10 8 3 5 2 7 4 9
Inserting 11.
11 10 8 3 5 2 7 4 9
Inserting 12.
12 11 10 8 3 5 2 7 4 9
Inserting 13.
Cannot insert element: list full.
12 11 10 8 3 5 2 7 4 9
Inserting 14.
Cannot insert element: list full.
12 11 10 8 3 5 2 7 4 9
---- sequentialInsertTest ends. ----
---- sequentialDeleteTest begins. ----
After initialization, the list is: 3 5 2 7 4
Now delete the first, the list is: 5 2 7 4
Now delete the last, the list is: 5 2 7
Now delete the second, the list is: 5 7
Now delete the 5th, the list is: Cannot delete element: the position 5 is beyond the list length 2.
5 7
Now delete the (-6)th, the list is: Invalid position: -6.
5 7
---- sequentialDeleteTest ends. ----
The address of the structure: 11670592
The address of actualLength: 11670592
The address of data: 11670596
The address of actual data: 11670596
The address of second data: 11670600
3 自己的部分代码实现
(1) locateElement()函数 查找指定元素第一次出现
int locateElement(SequentialListPtr paraListPtr, int paraValue)
{
int i;
for(i=0;iactualLength;i++)
{
if(paraListPtr->data[i]==paraValue)
{
return i;
}
}
return -1;
}// Of locateElement (2) getElement()函数 查找指定元素
int GetElement(SequentialListPtr paraListPtr, int paraPosition)
//取值 。i:为要取的值得位置，&e:为i位置的接受变量，并且返回主函数
{
int i = paraPosition;
if(i<0||i>=paraListPtr->actualLength)//判断i的取值是否超范围
{
printf("不合法地址\n");//如果超范围，返回ERROR，并结束
return -1;
}
return paraListPtr->data[i];
}(3) clearList()函数 清空线性表
void clearList(SequentialListPtr paraListPtr)
{
free(paraListPtr);//释放内存
paraListPtr->actualLength = 0;
}// Of clearList（4）priorElement()函数 获得指定元素的前驱
int priorElement(SequentialList *paraList,int i)
{
if(i>paraList->actualLength&&i<1)
{
printf("非法位置\n");
return 0;
}
else
return paraList->data[i-2];
}
以下为完整代码
#include
#include
#define LIST_MAX_LENGTH 10
/**
* Linear list of integers. The key is data.
*/
typedef struct SequentialList {
int actualLength;
int data[LIST_MAX_LENGTH]; //The maximum length is fixed.
} *SequentialListPtr;
/**
* Output the list.-
*/
void outputList(SequentialListPtr paraList) {
for(int i = 0; i < paraList->actualLength; i ++) {
printf("%d ", paraList->data[i]);
}// Of for i
printf("\r\n");
}// Of outputList
/**
* Output the memeory for the list.
*/
void outputMemory(SequentialListPtr paraListPtr) {
printf("The address of the structure: %ld\r\n", paraListPtr);
printf("The address of actualLength: %ld\r\n", ¶ListPtr->actualLength);
printf("The address of data: %ld\r\n", ¶ListPtr->data);
printf("The address of actual data: %ld\r\n", ¶ListPtr->data[0]);
printf("The address of second data: %ld\r\n", ¶ListPtr->data[1]);
}// Of outputMemory
/**
* Initialize a sequential list. No error checking for this function.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraValues An int array storing all elements.
*/
SequentialListPtr sequentialListInit(int paraData[], int paraLength) {
SequentialListPtr resultPtr = (SequentialList*)malloc(sizeof(SequentialList));
for (int i = 0; i < paraLength; i ++) {
resultPtr->data[i] = paraData[i];
}// Of for i
resultPtr->actualLength = paraLength;
return resultPtr;
}//Of sequentialListInit
/**
* Insert an element into a sequential linear list.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraPosition The position, e.g., 0 stands for inserting at the first position.
* @param paraValue The value to be inserted.
*/
void sequentialListInsert(SequentialListPtr paraListPtr, int paraPosition, int paraValue) {
// Step 1. Space check.
if (paraListPtr->actualLength >= LIST_MAX_LENGTH) {
printf("Cannot insert element: list full.\r\n");
return;
}//Of if
// Step 2. Position check.
if (paraPosition > paraListPtr->actualLength) {
printf("Cannot insert element: the position %d is bigger than the list length %d.\r\n", paraPosition, paraListPtr->actualLength);
return;
}//Of if
// Step 3. Move the remaining part.
for (int i = paraListPtr->actualLength; i > paraPosition; i --) {
paraListPtr->data[i] = paraListPtr->data[i - 1];
}//Of for i
// Step 4. Insert.
paraListPtr->data[paraPosition] = paraValue;
// Update the length.
paraListPtr->actualLength ++;
}// Of sequentialListInsert
/**
* Test the insert function.
*/
void sequentialInsertTest() {
int i;
int tempArray[5] = {3, 5, 2, 7, 4};
printf("---- sequentialInsertTest begins. ----\r\n");
// Initialize.
SequentialListPtr tempList = sequentialListInit(tempArray, 5);
printf("After initialization, the list is: ");
outputList(tempList);
// Insert to the first.
printf("Now insert to the first, the list is: ");
sequentialListInsert(tempList, 0, 8);
outputList(tempList);
// Insert to the last.
printf("Now insert to the last, the list is: ");
sequentialListInsert(tempList, 6, 9);
outputList(tempList);
// Insert beyond the tail.
printf("Now insert beyond the tail. \r\n");
sequentialListInsert(tempList, 8, 9);
printf("The list is:");
outputList(tempList);
// Insert to position 3.
for (i = 0; i < 5; i ++) {
printf("Inserting %d.\r\n", (i + 10));
sequentialListInsert(tempList, 0, (i + 10));
outputList(tempList);
}//Of for i
printf("---- sequentialInsertTest ends. ----\r\n");
}// Of sequentialInsertTest
/**
* Delete an element from a sequential linear list.
* @param paraListPtr The pointer to the list. It must be a pointer to change the list.
* @param paraPosition The position, e.g., 0 stands for inserting at the first position.
* @return The deleted value.
*/
int sequentialListDelete(SequentialListPtr paraListPtr, int paraPosition) {
// Step 1. Position check.
if (paraPosition < 0) {
printf("Invalid position: %d.\r\n", paraPosition);
return -1;
}//Of if
if (paraPosition >= paraListPtr->actualLength) {
printf("Cannot delete element: the position %d is beyond the list length %d.\r\n", paraPosition, paraListPtr->actualLength);
return -1;
}//Of if
// Step 2. Move the remaining part.
int resultValue = paraListPtr->data[paraPosition];
for (int i = paraPosition; i < paraListPtr->actualLength; i ++) {
paraListPtr->data[i] = paraListPtr->data[i + 1];
}//Of for i
// Step 3. Update the length.
paraListPtr->actualLength --;
// Step 4. Return the value.
return resultValue;
}// Of sequentialListDelete
/**
* Test the delete function.
*/
void sequentialDeleteTest() {
int tempArray[5] = {3, 5, 2, 7, 4};
printf("---- sequentialDeleteTest begins. ----\r\n");
// Initialize.
SequentialListPtr tempList = sequentialListInit(tempArray, 5);
printf("After initialization, the list is: ");
outputList(tempList);
// Delete the first.
printf("Now delete the first, the list is: ");
sequentialListDelete(tempList, 0);
outputList(tempList);
// Delete to the last.
printf("Now delete the last, the list is: ");
sequentialListDelete(tempList, 3);
outputList(tempList);
// Delete the second.
printf("Now delete the second, the list is: ");
sequentialListDelete(tempList, 1);
outputList(tempList);
// Delete the second.
printf("Now delete the 5th, the list is: ");
sequentialListDelete(tempList, 5);
outputList(tempList);
// Delete the second.
printf("Now delete the (-6)th, the list is: ");
sequentialListDelete(tempList, -6);
outputList(tempList);
printf("---- sequentialDeleteTest ends. ----\r\n");
outputMemory(tempList);
}// Of sequentialDeleteTest
/**
* Locate an element in the list.
* @param paraListPtr The pointer to the list.
* @param paraValue the indicated value.
* @return The position of the value, or -1 indicating not exists
*/
int locateElement(SequentialListPtr paraListPtr, int paraValue)
{
int i;
for(i=0;iactualLength;i++)
{
if(paraListPtr->data[i]==paraValue)
{
return i;
}
}
return -1;
}// Of locateElement
/**
* Get an element in the list.
* @param paraListPtr The pointer to the list.
* @param paraPosition The given position.
* @return The position of the value, or -1 indicating not exists
*/
int GetElement(SequentialListPtr paraListPtr, int paraPosition)
//取值 。i:为要取的值得位置，&e:为i位置的接受变量，并且返回主函数
{
int i = paraPosition;
if(i<0||i>=paraListPtr->actualLength)//判断i的取值是否超范围
{
printf("不合法地址\n");//如果超范围，返回ERROR，并结束
return -1;
}
return paraListPtr->data[i];
}
/**
* Clear elements in the list.
* @param paraListPtr The pointer to the list.
* @return The position of the value, or -1 indicating not exists
*/
void clearList(SequentialListPtr paraListPtr)
{
free(paraListPtr);//释放内存
paraListPtr->actualLength = 0;
}// Of clearList
/**
The entrance.
*/
int priorElement(SequentialList *paraList,int i)
{
if(i>paraList->actualLength&&i<1)
{
printf("非法位置\n");
return 0;
}
else
return paraList->data[i-2];
}
int main() {
sequentialInsertTest();
sequentialDeleteTest();
}// Of main
运行结果
Inserting 11.
11 10 8 3 5 2 7 4 9
Inserting 12.
12 11 10 8 3 5 2 7 4 9
Inserting 13.
Cannot insert element: list full.
12 11 10 8 3 5 2 7 4 9
Inserting 14.
Cannot insert element: list full.
12 11 10 8 3 5 2 7 4 9
---- sequentialInsertTest ends. ----
---- sequentialDeleteTest begins. ----
After initialization, the list is: 3 5 2 7 4
Now delete the first, the list is: 5 2 7 4
Now delete the last, the list is: 5 2 7
Now delete the second, the list is: 5 7
Now delete the 5th, the list is: Cannot delete element: the position 5 is beyond the list length 2.
5 7
Now delete the (-6)th, the list is: Invalid position: -6.
5 7
---- sequentialDeleteTest ends. ----
The address of the structure: 7738432
The address of actualLength: 7738432
The address of data: 7738436
The address of actual data: 7738436
The address of second data: 7738440