课内上机实验3——删除重复元素

题目描述：删除一个数组内重复的元素，并按照原来的相对顺序输出

#include <stdio.h>

int main(int argc, const char * argv[])
{

    int n,temp;
    int delete_num = 0;
    scanf("%d",&n);
    int a[n];
    for (int i = 0; i < n;i++) {
        scanf("%d",&a[i]);
    }
    for (int j = 0; j < n-1-delete_num; j++) {
        for (int k = j+1; k < n-delete_num; k++) {
            if (a[j] == a[k]) {
                delete_num++;
                for (int p = k; p < n-delete_num; p++) {
                    temp = a[p];
                    a[p] = a[p+1];
                    a[p+1] = temp;
                }
                k--;
            }
        }
    }
    for (int m = 0; m < n - delete_num; m++) {
        printf("%d ",a[m]);
    }
    return 0;
}