题解 | #提取不重复的整数#

#include <stdio.h>

int main() {
    int num;
    int table[10]={0};
    scanf("%d",&num);
    while(num/10!=0)
    {
        int num2 = num%10;
        if(table[num2]==0)
        {
            table[num2]=1;
            printf("%d",num2);
        }
        num = num/10;
    }
    if(table[num]==0)
        printf("%d\n",num);
    

    return 0;
}