https://www.nowcoder.com/exam/oj/ta?tpId=37

https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1

提交代码

#include <stdio.h>
int main(void){
    int n,a,res=0;
    scanf("%d",&n);
    int list[10]={0};
    
    while(n>0){
        a = n%10;
        if(list[a]==0){
            list[a] =1;
            res *= 10;
            res += a;
        }
        n /= 10;
    } 
    printf("%d",res);
    return 0;
}

执行结果

标签：10,www,int,res,HJ9,C语言,牛客,list,https
来源： https://www.cnblogs.com/tsuish/p/16274910.html