我需要从用户数组中删除重复的数字。
我想使用像RemoveDup这样的功能。
我犯了一个错误:“表达式必须具有指向对象类型的指针”
我查看了较早的版本,并没有成功解决问题。你能帮我一下吗?
#include <stdio.h>
#include <stdlib.h>
#pragma warning (disable: 4996)
void sortAsending(int arr[], int size);
void swap(int* a, int* b);
void RemoveDup(int, int);
void main()
{
int arr[10];
int i, size ;
printf("please enter size of array: ");
scanf("%d", &size);
printf("please enter %d numbers: ", size);
for (i = 0; i < size; i++)
scanf("%d", &arr[i]);
printf("the original array is: ");
for (i = 0; i < size; i++)
printf("%d ", arr[i]);
printf("\n");
sortAsending(arr, size);
printf("the sorted array is: ");
for (i = 0; i < size; i++)
printf("%d ", arr[i]);
printf("\n");
}
void swap(int* a, int* b)
{
int temp = *a;
*a = *b;
*b = temp;
}
void sortAsending(int arr[], int size)
{
int i, j;
for (i = size - 1; i > 0; i--)
{
for (j = 0; j < i; j++)
{
if (arr[j]>arr[j + 1])
swap(&arr[j], &arr[j + 1]);
}
}
}
void RemoveDup(int arr, int size)
{
int arr[size];
int i, j, k;
for (i = 0; i < size; i++)
{
for (j = i + 1; j < size;)
{
if (arr[i] == arr[j])
{
for (k = j; k < size; k++)
arr[k] = arr[k++];
size--;
}
else
j++;
}
}
}
最佳答案
//prototype
void RemoveDup(int arr[], int *size);
//Assumes that it is sorted
//call RemoveDup(arr, &size);//size is updated.
void RemoveDup(int arr[], int *size){
int *d, *s, *endp = arr + *size;
if(*size == 1)
return;
d = s = arr;
while(++s != endp){
if(*d != *s){
*++d = *s;
}
}
*size = d - arr + 1;
}
关于c - 如何删除重复的数字,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27838539/