>>436　便乗
#include <stdio.h>
#include <limits.h>
#define N 10
int main()
{
    int a[N] = {1, 2, 3, 2, 3, 1, 0, 2, 5, 4};
    int b[N],i, j, k = 0, flag;
    for(i = 0; i < N; i++){
        flag = 1;
        for(j = 0; j < k; j++)
            if(a[i] == b[j]){
                flag = 0;
                break;
            }
        if(flag)
            b[k++] = a[i];
    }
    for(i = 0; i < k - 1; i++)
        for(j = i; j < k; j++)
            if(b[i] > b[j]){
                int temp = b[i];
                b[i] = b[j];
                b[j] = temp;
            }
    for(j = 0; j < k; j++)
        printf("%d ", b[j]);
    printf("\n");
    return 0;
}