数组的删除问题 - 编程论坛

#2

ditg2020-06-18 00:58

n是啥？

#3

八画小子2020-06-18 07:24

程序代码：

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#define ARRAY_SIZE    10

int main(void)
{
    int array[ARRAY_SIZE];
    int x;

    printf("Input %d numbers: ", ARRAY_SIZE);
    for (int i = 0; i < ARRAY_SIZE; i++)
    {
        scanf("%d", &array[i]);
    }

    printf("Input x: ");
    scanf("%d", &x);

    int* p = array;
    int* q = array;
    bool get_first = false;
    while (p < array + ARRAY_SIZE)
    {
        if (*p == x)
        {
            if (!get_first)
                get_first = true;
            else
                p++;
        }
        else
        {
            *q++ = *p++;
        }
    }

    p = array;
    printf("[");
    while (p != q)
    {
        printf(" %d", *p++);
    }
    printf(" ]");

    return EXIT_SUCCESS;
}

随手写的代码，可能有错误，大概意思就是这个。

#4

吹水佬2020-06-18 08:25

#include<stdio.h>
int Search(int a[], int n, int x);
int Delch(int a[], int n, int x);
void main()
{
    int a[10],i,m,x,n;
    printf("Input 10 numbers:\n");
    for(i=0; i<10; i++)
    {
        scanf("%d",&a[i]);
    }
    printf("Input x:\n");
    scanf("%d",&x);
    m = Search(a,10,x);
    if (m<10)
    {
        printf("Subscript of x is %d\n",m);
        m = Delch(a,m+1,x);
        for (i=0; i<m; ++i)
            printf("%d ",a[i]);

    }
    else
        printf("Not found!\n");
}
int Search(int a[], int n, int x)
{
    int i;
    for(i=0; i<n && a[i]!=x; ++i);
    return i;
}
int Delch(int a[], int m, int x)
{
    int i,j=m;
    for (i=j; i<10; ++i)
    {
        if (a[i] != x)
            a[j++] = a[i];
    }
    return j;
}