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Re:请教这道题如何解决输入length=0的字符串

Posted by foreverlin at 2008-12-14 19:25:21 on Problem 2681
In Reply To:请教这道题如何解决输入length=0的字符串 Posted by:xhu_li at 2008-12-14 19:14:33
> /*****************************
> 一下是我写的代码,测试了几组数组,是对的,但是总是wa,希望哪位帮我看看!!!!
>                                        谢谢!!
> 
> 我的程序不能输入length=0的字符串,是不是这格问题??????????
> 
> *****************************/
> 
> #include<iostream>
> #include<cstring>
> using namespace std;
> int main()
> {
> 	long n;
> 	char str1[46],str2[46];
> 	cin>>n;
> 	long p=0;
> 	while(n--)
> 	{
> 		p++;
> 		int i,j,k=0,t=0,len1=0,len2=0;
> 		scanf("%s",str1);   //不知道这里输入的时候是否有问题
> 		scanf("%s",str2);
> 		len1=strlen(str1);
> 		len2=strlen(str2);
> 		if(len1==0||len2==0)
> 		{
> 			if(len1>len2)
> 				cout<<"Case #"<<p<<":  "<<len1<<endl;
> 			else
> 				cout<<"Case #"<<p<<":  "<<len2<<endl;
> 			continue;
> 		}
> 		for(i=0;i<len1;i++)
> 		{
> 			for(j=0;j<len2;j++)
> 			{
> 				if(str1[i]==str2[j])
> 				{
> 					str2[j]='0';
> 					k++;
> 					break;
> 				}
> 			}
> 			if(k==len2)
> 				break;
> 		}
> 		t=len1+len2-2*k;
> 		cout<<"Case #"<<p<<":  "<<t<<endl;
> 	}
> 	return 0;
> }
> 
Each case will consist of two words, possibly empty,可能有空输出,用gets试下

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