题解 | #序列中整数去重#

#include <stdio.h>
int main() {
    int n;
    while (scanf("%d", &n) != EOF) {
        int arr[n];
        for (int i = 0; i < n; i++) {
            scanf("%d",&arr[i]);
        }
        for (int i = 0;i < n; i++) {
            int j = 0,tmp = 0;
            for(j = i - 1; j >= 0;j--)//查找之前的数据看看有没有出现打印过
            {//j = -1;不会越界访问，for循环就会停下
                if(arr[i] == arr[j])
                {
                    tmp = arr[j];//把查找的重复值保存
                    break;
                }
            }
            if(tmp != arr[i])
            printf("%d ",arr[i]);
        }
    }
    return 0;
}