解题思路:
注意事项:
参考代码:
import java.util.Scanner; public class T1605 { public static int f(String s){ if(s.length() == 1) return s.charAt(0) - '0'; int ans = 1; for(int i = 0;i<s.length();i++){ if(s.charAt(i) != '0') ans *= s.charAt(i)-'0'; } ans = f(String.valueOf(ans)); return ans; } public static void main(String[] args) { Scanner in = new Scanner(System.in); while(in.hasNext()){ String s = in.next(); System.out.println(f(s)); } in.close(); } }
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