cout 选择性爆炸

string word;

string sentence,xv;

int x,q=0,f=0;

getline(cin, word);

getline(cin, sentence);

x = word.length();

for (int i = 0; i <= sentence.length() - x; i++)
                                     
{
                                     
	xv = sentence.substr(i, x);
                                     
	if (xv == word)
                                     
	{
                                     
		if (i == 0&&i+2==' ')
                                     
		{
                                     
			q++;
                                     
			f = 1;
                                     
		}
                                     
		else if(i>0&&i<sentence.length()-x&&i-1==' '&&i+2==' ')
                                                
		{
                                                
			q++;
                                                
			f = i;
                                                
		}
                                                
		else if (i == sentence.length() - x&&i-1==' ')
                                                
		{
                                                
			q++;
                                                
			f = i;
                                                
			cout << q << " " << f;
                                 
		}
                                 
		
		else
                                 
		{
                                 
			cout << -1;
                      
		}
                      
	}
                      
}
                      

return 0;