C语言顺序表的实现代码

本文实例为大家分享了C语言实现顺序表的具体代码，供大家参考，具体内容如下

seqlist.h

#ifndef __SEQLIST_H__
#define __SEQLIST_H__

#include<cstdio>
#include<malloc.h>
#include<assert.h>
#define SEQLIST_INIT_SIZE 8
#define INC_SIZE 3 //空间增量的大小
typedef int ElemType;
typedef struct Seqlist {
 ElemType *base;
 int capacity; //顺序表容量
 int size; //表的大小
}Seqlist;

bool Inc(Seqlist *list);//增加顺序表的容量
void InitSeqlist(Seqlist *list); //初始化顺序表
void push_back(Seqlist *list,ElemType x); //在顺序表的末尾插入元素
void push_front(Seqlist *list,ElemType x); //在顺序表的头部插入元素
void show_list(Seqlist *list); //显示顺序表中的元素
void pop_back(Seqlist *list); //删除顺序表最后一个元素
void pop_front(Seqlist *list); //删除顺序表第一个元素
void insert_pos(Seqlist *list,int pos,ElemType x);//在顺序表的选定位置上插入数据
int find(Seqlist *list,ElemType key); //在顺序表中查找元素key的下标
int length(Seqlist *list);//求顺序表的长度
void delete_pos(Seqlist *list,int pos); //删除顺序表中特定位置的数据元素
void delete_val(Seqlist *list,int key);//删除顺序表中值为key的数据元素
void sort(Seqlist *list);//冒泡排序
void reverse(Seqlist *list);//逆置顺序列表
void clear(Seqlist *list);//清除顺序表中的所有元素
void destroy(Seqlist *list);//摧毁顺序表
void merge(Seqlist *lt,Seqlist *la,Seqlist *lb);//合并两个顺序列表

#endif //__SEQLIST_H__ 

seqlist.cpp

#include"seqlist.h"

bool Inc(Seqlist *list) {
 ElemType *newbase = (ElemType*)realloc(list,sizeof(ElemType)*(list->capacity + INC_SIZE)); //重新分配内存空间
 if (newbase == NULL) {
  printf("内存空间已满，无法再分配内存空间！n");
  return false;
 }
 list->base = newbase;
 list->capacity += INC_SIZE;
 return true;
}

void InitSeqlist(Seqlist *list) {
 list->base = (ElemType*)malloc(sizeof(ElemType)*SEQLIST_INIT_SIZE);
 assert(list->base != NULL);
 list->capacity = SEQLIST_INIT_SIZE;
 list->size = 0;
}

void push_back(Seqlist *list,ElemType x) {
 if (list->size >= list->capacity && !Inc(list)) { //Inc(list)用来判断增加顺序表容量是否成功,只有在失败的情况下才会进入if语句中
  printf("顺序表容量已满，无法再在表尾继续插入新元素！n");
  return;
 }
 list->base[list->size] = x;
 list->size++;
}

void push_front(Seqlist *list,ElemType x) {
 if (list->size >= list->capacity && !Inc(list)) {
  printf("顺序表容量已满，无法再在表头插入新元素！n");
  return;
 }
 for (int i = list->size;i > 0;i--) {
  list->base[i] = list->base[i - 1];
 }
 list->base[0] = x;
 list->size++;
}

void show_list(Seqlist *list) {
 for (int i = 0;i < list->size;i++) {
  printf("%d ",list->base[i]);
 }
 printf("n");
}

void pop_back(Seqlist *list) {
 if (list->size == 0) {
  printf("顺序表已空，无法再在表尾删除元素！n");
  return;
 }
 list->size--;
}

void pop_front(Seqlist *list) {
 if (list->size == 0) {
  printf("顺序表已空，无法再在表头删除元素！n");
  return;
 }
 for (int i = 0;i < list->size - 1;i++) {
  list->base[i] = list->base[i + 1];
 }
 list->size--;
}

void insert_pos(Seqlist *list,ElemType x) {
 if (pos<0 || pos>list->size) {
  printf("插入位置不合法，无法插入元素！n");
  return;
 }
 if (list->size >= list->capacity && !Inc(list)) {
  printf("顺序表容量已满，无法在插入新的元素！n");
  return;
 }
 for (int i = list->size;i > pos;i--) {
  list->base[i] = list->base[i - 1];
 }
 list->base[pos] = x;
 list->size++;
}

int find(Seqlist *list,ElemType key) {
 for (int i = 0;i < list->size;i++) {
  if (list->base[i] == key)
   return i;
 }
 return -1;
}

int length(Seqlist *list) {
 return list->size;
}

void delete_pos(Seqlist *list,int pos) {
 if (pos < 0 || pos >= list->size) {
  printf("删除位置不合法，无法删除元素！n");
  return;
 }
 for (int i = pos;i < list->size - 1;i++) {
  list->base[i] = list->base[i + 1];
 }
 list->size--;
}

void delete_val(Seqlist *list,int key) {
 int pos = find(list,key);
 if (pos == -1) {
  printf("顺序表中没有这个元素！n");
  return;
 }
 delete_pos(list,pos);
}

void sort(Seqlist *list) {
 for (int i = 0;i < list->size - 1;i++) {//排序的趟数（例如5个数据需要比较4趟）
  for (int j = 0;j < list->size - 1 - i;j++) {//每一趟比较中的比较次数（例如5个数据在第0趟需要比较4次）
   if (list->base[j] > list->base[j + 1]) {
    ElemType temp = list->base[j];
    list->base[j] = list->base[j + 1];
    list->base[j + 1] = temp;
   }
  }
 }
}

void reverse(Seqlist *list) {
 if (list->size == 0 || list->size == 1) return;
 int low = 0,high = list->size - 1;
 while (low < high) {
  ElemType temp = list->base[low];
  list->base[low] = list->base[high];
  list->base[high] = temp;
  low++;
  high--;
 }
}

void clear(Seqlist *list) {
 list->size = 0;
}

void destroy(Seqlist *list) {
 free(list->base);
 list->base = NULL;
 list->capacity = 0;
 list->size = 0;
}

void merge(Seqlist *lt,Seqlist *lb) {
 lt->capacity = la->size + lb->size;
 lt->base = (ElemType*)malloc(sizeof(ElemType)*lt->capacity);
 assert(lt->base != NULL);

 int ia = 0,ib = 0,ic = 0;
 while (ia < la->size&&ib < lb->size) {
  if (la->base[ia] < lb->base[ib]) {
   lt->base[ic++] = la->base[ia++];
  }
  else {
   lt->base[ic++] = lb->base[ib++];
  }
 }
 while (ia < la->size) {
  lt->base[ic++] = la->base[ia++];
 }
 while (ib < lb->size) {
  lt->base[ic++] = lb->base[ib++];
 }
 lt->size = la->size + lb->size;
 show_list(lt);
}

（编辑：PHP编程网 - 黄冈站长网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!