#include<stdio.h> //num[20] size -1 flag N //N%10 and != 去重 push num int main(){ int num[20],size=-1,flag,N; int t; scanf("%d",&N); while(N!=0){ t = N%10; flag=0; for(int i=0;i<=size;i++){ if(t==num[i]) {flag=1; ...