头文件
#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
typedef int SLDataType;
typedef struct SeqList
{
SLDataType* a;
int size; // 有效数据个数
int capacity; // 空间容量
}SL;
//初始化和销毁
void SLInit(SL* ps);
void SLDestroy(SL* ps);
void SLPrint(SL* ps);
//扩容
void SLCheckCapacity(SL* ps);
//头部插入删除 / 尾部插入删除
void SLPushBack(SL* ps, SLDataType x);
void SLPopBack(SL* ps);
void SLPushFront(SL* ps, SLDataType x);
void SLPopFront(SL* ps);
//指定位置之前插入/删除数据
void SLInsert(SL* ps, int pos, SLDataType x);
void SLErase(SL* ps, int pos);
void SLFind(SL* ps, SLDataType
函数
#define _CRT_SECURE_NO_WARNINGS 1
#include "s.h"
//初始化
void SLInit(SL* ps) {
ps->a = NULL;
ps->capacity = ps->size = 0;
}
//销毁
void SLDestroy(SL* ps) {
assert(ps);
if (ps->a) {
free(ps->a);
}
ps->a = NULL;
ps->size = ps->capacity - 0;
}
//打印
void SLPrint(SL* ps) {
for (int i = 0; i < ps->size; i++) {
printf("%d ", ps->a[i]);
}
printf("\n");
}
//扩容
void SLCheckCapacity(SL* ps) {
if (ps->size == ps->capacity) {
int newcapacity = ps->capacity == 0 ? 4 : 2 * ps->capacity;
SLDataType* qwe = (SLDataType*)realloc(ps->a, newcapacity * sizeof(SLDataType));
if (qwe == NULL) {
perror("reacoll fail!");
exit(0);
}
ps->a = qwe;
ps->capacity = newcapacity;
}
}
//尾插
void SLPushBack(SL* ps, SLDataType x) {
assert(ps);
SLCheckCapacity(ps);
ps->a[ps->size++] = x;
}
//尾删
void SLPopBack(SL* ps) {
assert(ps);
assert(ps->size);
ps->size--;
}
//头插
void SLPushFront(SL* ps, SLDataType x) {
assert(ps);
SLCheckCapacity(ps);
for (int i = ps->size; i > 0; i--) {
ps->a[i] = ps->a[i - 1];
}
ps->a[0] = x;
ps->size++;
}
//头删
void SLPopFront(SL* ps) {
assert(ps);
assert(ps->size);
for (int i = 0; i < ps->size - 1; i++) {
ps->a[i] = ps->a[i + 1];
}
ps->size--;
}
//指定位置之前插入
void SLInsert(SL* ps, int pos, SLDataType x) {
assert(ps);
assert(pos >= 0 && pos <= ps->size);
SLCheckCapacity(ps);
for (int i = ps->size; i > pos; i--) {
ps->a[i] = ps->a[i - 1];
}
ps->a[pos] = x;
ps->size++;
}
//删除指定位置数据
void SLErase(SL* ps, int pos) {
assert(ps);
assert(pos >= 0 && pos <= ps->size);
for (int i = pos; i < ps->size - 1; i++) {
ps->a[i] = ps->a[i + 1];
}
ps->size--;
}
//查找
void SLFind(SL* ps, SLDataType x) {
assert(ps);
assert(x >= 0 && x <= ps->size);
printf("%d",ps->a[x]);
}
测试
(这块就根据自己要的改啦)
#define _CRT_SECURE_NO_WARNINGS 1
#include "s.h"
int main() {
SL sl;
SLInit(&sl);
SLPushFront(&sl, 1);
SLPushFront(&sl, 2);
SLPushBack(&sl, 3);
SLPopBack(&sl);
SLPopFront(&sl);
SLInsert(&sl, 0, 100);
SLPrint(&sl);
}
我的测试是这个效果(插入1,2,3,头删然后尾删,再在0位插入100)