本文主要是介绍第3周实践项目3 求集合并集,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
main.cpp
#include "list.h"
#include <stdio.h>
void unionList(SqList *LA, SqList *LB, SqList *&LC)
{int lena,i;ElemType e;InitList(LC);for (i=1; i<=ListLength(LA); i++) //将LA的所有元素插入到Lc中{GetElem(LA,i,e);ListInsert(LC,i,e);}lena=ListLength(LA); //求线性表LA的长度for (i=1; i<=ListLength(LB); i++){GetElem(LB,i,e); //取LB中第i个数据元素赋给eif (!LocateElem(LA,e)) //LA中不存在和e相同者,插入到LC中ListInsert(LC,++lena,e);}
}
//用main写测试代码
int main()
{SqList *sq_a, *sq_b, *sq_c;ElemType a[6]= {5,8,7,2,4,9};CreateList(sq_a, a, 6);printf("LA: ");DispList(sq_a);ElemType b[6]= {2,3,8,6,0};CreateList(sq_b, b, 5);printf("LB: ");DispList(sq_b);unionList(sq_a, sq_b, sq_c);printf("LC: ");DispList(sq_c);return 0;
}
list.h
#ifndef LIST_H_INCLUDED
#define LIST_H_INCLUDED#define MaxSize 50
typedef int ElemType;
typedef struct
{ElemType data[MaxSize];int length;
} SqList;
void CreateList(SqList *&L, ElemType a[], int n);//用数组创建线性表
void InitList(SqList *&L);//初始化线性表InitList(L)
void DestroyList(SqList *&L);//销毁线性表DestroyList(L)
bool ListEmpty(SqList *L);//判定是否为空表ListEmpty(L)
int ListLength(SqList *L);//求线性表的长度ListLength(L)
void DispList(SqList *L);//输出线性表DispList(L)
bool GetElem(SqList *L,int i,ElemType &e);//求某个数据元素值GetElem(L,i,e)
int LocateElem(SqList *L, ElemType e);//按元素值查找LocateElem(L,e)
bool ListInsert(SqList *&L,int i,ElemType e);//插入数据元素ListInsert(L,i,e)
bool ListDelete(SqList *&L,int i,ElemType &e);//删除数据元素ListDelete(L,i,e)#endif // LIST_H_INCLUDED
#endif
list.cpp#include <stdio.h>
#include <malloc.h>
#include "list.h"
//用数组创建线性表
void CreateList(SqList *&L, ElemType a[], int n)
{int i;L=(SqList *)malloc(sizeof(SqList));//注意c语言的开辟动态内存的格式for (i=0; i<n; i++)L->data[i]=a[i];L->length=n;
}
//初始化线性表InitList(L)
void InitList(SqList *&L) //引用型指针
{L=(SqList *)malloc(sizeof(SqList));//分配存放线性表的空间L->length=0;
}//销毁线性表DestroyList(L)
void DestroyList(SqList *&L)
{free(L);//值得借鉴的
}//判定是否为空表ListEmpty(L)
bool ListEmpty(SqList *L)
{return(L->length==0);//为空时返回1
}//求线性表的长度ListLength(L)
int ListLength(SqList *L)
{return(L->length);
}//输出线性表DispList(L)
void DispList(SqList *L)
{int i;if (ListEmpty(L))return;for (i=0; i<L->length; i++)printf("%d ",L->data[i]);printf("\n");
}//求某个数据元素值GetElem(L,i,e)
bool GetElem(SqList *L,int i,ElemType &e)//引用,e
{if (i<1 || i>L->length) return false;e=L->data[i-1];return true;
}//按元素值查找LocateElem(L,e)
int LocateElem(SqList *L, ElemType e)
{int i=0;while (i<L->length && L->data[i]!=e) i++;if (i>=L->length) return 0;else return i+1;
}//插入数据元素ListInsert(L,i,e)
bool ListInsert(SqList *&L,int i,ElemType e)
{int j;if (i<1 || i>L->length+1)return false; //参数错误时返回falsei--; //将顺序表逻辑序号转化为物理序号for (j=L->length; j>i; j--) //将data[i..n]元素后移一个位置L->data[j]=L->data[j-1];L->data[i]=e; //插入元素eL->length++; //顺序表长度增1return true; //成功插入返回true
}//删除数据元素ListDelete(L,i,e)
bool ListDelete(SqList *&L,int i,ElemType &e)
{int j;if (i<1 || i>L->length) //参数错误时返回falsereturn false;i--; //将顺序表逻辑序号转化为物理序号e=L->data[i];for (j=i; j<L->length-1; j++) //将data[i..n-1]元素前移L->data[j]=L->data[j+1];L->length--; //顺序表长度减1return true; //成功删除返回true
}
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