hdu2054

http://acm.hdu.edu.cn/showproblem.php?pid=2054

很烦的题~~

#include"iostream"
#include"string"
using namespace std;
int i,j,L1,L2;
char a[20000],b[20000];
int main()
{
           while(scanf("%s %s",&a,&b)!=EOF)
           {
               if(a[0]=='-'&&b[0]=='-'||a[0]!='-'&&b[0]!='-')
               {
                   int sign=-1;
                   if(a[0]=='-'&&b[0]=='-') sign=1;
                     else sign=0;
               int start1=0,start2=0,mark1=0,mark2=0, 
               int end1=strlen(a),end2=strlen(b);
                //************处理a前面的0************
               for(i=sign;i<strlen(a);i++) 
                   if(a[i]=='.') { mark1=1; break;}

                for(i=sign;i<strlen(a);i++) 
                {
                    if(a[i]!='0'&&i!=strlen(a)-1) { start1=i; break;}
                         else start1=strlen(a)-1;
                }
               //*************处理b前面的0****************
                for(i=sign;i<strlen(b);i++)
                   if(b[i]=='.') { mark2=1; break;}

               for(i=sign;i<strlen(b);i++) 
               { 
                   if(b[i]!='0'&&i!=strlen(b)-1) { start2=i; break;}
                     else start2=strlen(b)-1;
               }
                //************处理a含有“.”后面的0***************
                 if(mark1==1)
                 {
                   for(i=strlen(a)-1;i>=sign;i--) 
                   if(a[i]!='0') 
                   {
                       if(a[i]=='.') { end1=i; break;}
                       else { end1=i; break;}
                   }
                 }
                 //************处理b含有“.”后面的0***********
                 if(mark2==1)
                 {
                   for(i=strlen(b)-1;i>=sign;i--) 
                   if(b[i]!='0') 
                   {
                       if(b[i]=='.') { end2=i; break;}
                       else { end2=i; break;}
                   }
                 }
              //***********处理0的情况*************
                 if(end1==start1) start1=0;   
                 if(end2==start2) start2=0;
                //cout<<start1<<" "<<end1<<endl;
                    //cout<<start2<<" "<<end2<<endl;
                 if(end1-start1==end2-start2)
                 {
                      int flag=0;
                     for(i=start1,j=start2;j<end2,i<end1;i++,j++)
                         if(a[i]==b[j]) flag++;

                         if(flag==end1-start1) cout<<"YES"<<endl;
                          else cout<<"NO"<<endl;
                 }
                 else cout<<"NO"<<endl;
               }
               else cout<<"NO"<<endl;  
           }
           return 0;
}

java版：

import java.io.*;
import java.util.Scanner;
import java.math.BigDecimal;

class Main
{
    public static void main(String [] args)
    {
        Scanner cin = new Scanner(new BufferedInputStream(System.in));
        BigDecimal a , b ;
        while(cin.hasNext())
        {
           a=cin.nextBigDecimal();
           b=cin.nextBigDecimal();
           a=a.stripTrailingZeros();
           b=b.stripTrailingZeros();
           
           int c=a.compareTo(b);
           if(c==0)
           System.out.println("YES");
           else  System.out.println("NO");
        }
    }
}