笔试题-单词反转

先反转整个字符串，然后反转每个单词

 
string func(string  & s,int a,int b)
{
 b--;
	while(a<b)
	{		
	    s[a]=s[a]^s[b];
		s[b]=s[a]^s[b];
		s[a]=s[a]^s[b]; 
		a++,b--;		
	}

	return s;
}

int main(int argc, char *argv[])
{
	string s= "i like netease Game";
	int a= 0;
	int b = s.size();
	func(s,a,b);//交换全部
		cout<<s<<endl;	
	
	//交换单词 
	int ii= 0;
	for(int i=0;i<s.size();i++)
	{
		if(s[i]==' ')
		{
	
			func(s,ii,i);
					cout<<s<<endl;	
	
			ii=i+1;
		}
 

	}
		func(s,ii,s.size());
		
		
		cout<<s<<endl;	
	
	

	
	
	
	return 0;
}