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Main1107.java
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Main1107.java
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import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.StringTokenizer;
public class Main1107 {
public static void main(String[] args) throws NumberFormatException, IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int n = Integer.parseInt(br.readLine());
int m = Integer.parseInt(br.readLine());
boolean[] broken = new boolean[10];
Arrays.fill(broken, true);
if(m!=0) {
StringTokenizer st = new StringTokenizer(br.readLine());
for(int i=0;i<m;i++) {
broken[Integer.parseInt(st.nextToken())] = false;
}
}
//1. +/-만으로 가는경우
int cnt =Math.abs(n-100);
//2. 숫자버튼만으로 이동가능한 경우
int tmp = n;
int len = 0;
if(tmp==0) {
if(broken[0]) {
len=1;
}else {
len=500000;
}
}
while(tmp>0) {
if(!broken[tmp%10]) {
len = 500000;
break;
}
tmp/=10;
len++;
}
cnt = cnt<len?cnt:len;
//3. 1+2
int tlen;
for(int i=0;i<=1000000;i++) {
len = 0;
tmp = i;
if(tmp==0) {
if(!broken[0]) {
len = 500000;
}else {
len++;
}
}
while(tmp>0) {
if(!broken[tmp%10]) {
len = 500000;
break;
}
len++;
tmp/=10;
}
tlen = len+Math.abs(n-i);
cnt = cnt<tlen?cnt:tlen;
}
System.out.println(cnt);
}
}