http://poj.org/problem?id=1331 //* @author: 82638882@163.com import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in=new Scanner(System.in); int a=in.nextInt(); while((a--)!=0) { String s1=in.next(); String s2=in.next(); String s3=in.next(); int max=0; for(int i=0;i< s1.length();i++) { char c=s1.charAt(i); int u=c-48; if(max< u)max=u; } for(int i=0;i< s2.length();i++) { char c=s2.charAt(i); int u=c-48; if(max< u)max=u; } for(int i=0;i< s3.length();i++) { char c=s3.charAt(i); int u=c-48; if(max< u)max=u; } boolean b=true; for(int o=max+1;o< 17;o++) { int w1=Integer.parseInt(s1, o); int w2=Integer.parseInt(s2, o); int w3=Integer.parseInt(s3, o); if(w1*w2==w3) { System.out.println(o); b=false; break; } } if(b)System.out.println(0); } } }
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