int Sqlist_search(Sqlist L,int x)改名的问题

答案:1 悬赏:30 手机版

解决时间 2021-04-18 04:42

提问者网友：暗中人
2021-04-17 23:22

最佳答案

五星知识达人网友：一叶十三刺
2021-04-17 23:42

#include
#define MAXLEN 50
typedef struct
{
    int elem[MAXLEN];
    int length;
}Sqlist;

Sqlist insert(Sqlist L,int i,int x)
{
    int j;
    if(i<1||i>L.length+1)
        printf("ERROR!");
    else if(L.length>=MAXLEN)
        printf("OVERFLOW!");
    else
    {
        for(j=L.length-1;j>=i-1;j--)
            L.elem[j+1]=L.elem[j];
        L.elem[i-1]=x;
        L.length++;
    }
    return L;
}

Sqlist del(Sqlist L,int i)
{
    int j;
    if(i<1||i>L.length)
        printf("ERROR!");
    else
    {
        for(j=i;j<=L.length-1;j++)
        L.elem[j-1]=L.elem[j];
        L.length--;
    }
    return L;
}
//原代码 int Sqlist_search(Sqlist L,int x)
int search(Sqlist L,int x)
{
    int i;
    for(i=1;i<=L.length&&L.elem[i-1]!=x;i++);
        if (i<=L.length)
            return i;
        else
            return 0;
}

void display(Sqlist L)
{
    int j;
    for(j=0;j<=L.length-1;j++)
        printf("%4d",L.elem[j]);
    printf("
");
}

int main()
{
    Sqlist L;
    int i,x,j;
    printf("
please input the length:");
    scanf("%d",&L.length);

    printf("please input the Value:
");
    for(j=0;j<=L.length-1;j++)
        scanf("%d",&L.elem[j]);

    printf("please input the insert position:");
    scanf("%d",&i);

    printf("please input the insert node:");
    scanf("%d",&x);

    L=insert(L,i,x);

    display(L);

    printf("please input the delete position:");
    scanf("%d",&i);

    L=del(L,i);

    display(L);

    printf("please input the search node:");
    scanf("%d",&x);

    //原代码 if (Sqlist_search(L,x))
    //原代码 printf("search is success and %d is %d position
",x,Sqlist_search(L,x));

    int nResult;
    nResult=search(L,x);
    if (nResult)
        printf("search is success and %d is %d position
",x,nResult);
    else
        printf("search is unsuccess
");
    printf("The program is end,press any key to continue.");
    getchar(); //getch();

    return 0; //函数int main()要有返回值
}
追问int nResult;
nResult=search(L,x);
if (nResult)
printf("search is success and %d is %d position\n",x,nResult);
为什么要加这一段
而且我用的c++ 6.0不行追答//=========================================
//这里,查找函数search()只需执行1次
int nResult;
nResult=search(L,x);
if (nResult)
printf("search is success and %d is %d position\n",x,nResult);
//=========================================
//这里,查找函数search()执行了2次
if (search(L,x)) //函数search()执行第1次
printf("search is success and %d is %d position\n",x,search(L,x));//函数search()执行第2次
//实际上,函数search()只需执行1次,而要执行第2次,没有必要,
//所以用变量nResult获得函数search()的返回值
//=========================================
楼主的c++ 6.0不行,显示了什么错误信息?
试试将search换成其它名称,例如search3追问C:\Users\Administrator\Desktop\jj.c(92) : error C2143: syntax error : missing ';' before 'type'
C:\Users\Administrator\Desktop\jj.c(93) : error C2065: 'nResult' : undeclared identifier
执行 cl.exe 时出错.

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