显示代码纯文本
#include<iostream>
#include<fstream>
#include<iomanip>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<assert.h>
#include<time.h>
#include<vector>
#include<stack>
#include<deque>
#include<queue>
#include<cstring>
#include<functional>
#include<cctype>
using namespace std;
ifstream fin("torch.in");
ofstream fout("torch.out");
int n,ans;
bool jugde(int k)//Jugde:0 or 1
{
while(k>1)
{
if(k%10==1)k--;
if(k%10!=0)return false;
k/=10;
}
return true;
}
void calculate(void)
{
int i;
for(i=1;i<=30000;i++)
{
ans=n*i;
if(jugde(ans)==true){fout<<i<<endl;return;}
}
if(i>30000)fout<<"NO"<<endl;
}
int main()
{
//Step 1:Input.=========================================
fin>>n;
//Step 2:Deal.==========================================
calculate();
return 0;
}