#include<iostream>
#include<cstring>
using namespace std;

int map[256]={0};
int main()
{
	int i;
//这里有点罗嗦了
	for(i='a';i<='z';i++)
		map[i]=0;
	for(i='A';i<='Z';i++)
		map[i]=0;
	
	map[5]=0;//it is ff
	map[6]=0;//it is fi
	map[7]=0;//it is fl
	map[8]=0;//it is ffi
	map[9]=0;//it is ffl
	
	
	char record[105];
	int count=0;
	
	while(cin>>record)
	{
		int len=strlen(record);
		for(i=0;i<len;i++)
		{
			// it is ``
			if(record[i]=='`' && record[i+1]=='`')
			{
				count++;
				i++;
				continue;
			}
			if(record[i]=='`')
			{
				count++;
				continue;
			}
			// it is ''
			if(record[i]=='\'' && record[i+1]=='\'')
			{
				count++;
				i++;
				continue;
			}
			if(record[i]=='\'')
			{
				count++;
				continue;
			}
			// it is ffi
			// it is ffl
			if(record[i]=='f' && record[i+1]=='f' && (record[i+2]=='i' || record[i+2]=='l'))
			{
				
				if(record[i+2]=='i')
				{
					if(map[8]==0)
						count++;
					map[8]=1;
				}
				else
				{
					if(map[9]==0)
						count++;
					map[9]=1;
				}				
				i=i+2;
				continue;
			}
			// it is ff fi fl
			if(record[i]=='f' && (record[i+1]=='f' || record[i+1]=='i' || record[i+1]=='l'))
			{
				if(record[i+1]=='f')
				{
					if(map[5]==0)
						count++;
					map[5]=1;
				}
				else if(record[i+1]=='i')
				{	
					if(map[6]==0)
						count++;
					map[6]=1;
				}
				else
				{	
					if(map[7]==0)
						count++;
					map[7]=1;
				}
				i++;
				continue;
			}
			
	
			if(map[(int)record[i]]!=1)
			{
				//cout<<"we have count  this number"<<endl;
				count++;
				map[(int)record[i]]=1;
			}
		}
//		cout<<"this period is"<<count<<endl;
	}
	cout<<count<<endl;
	
	return 0;
}

• Re:害人不浅，题目倒是挺简单，就是说的不明白。害得我忙了一下午。标点可以重复计数，但是ff等只计一次。给出参考 (37) ecust_linpeng 2009-05-09 18:27:20
• Re:害人不浅，题目倒是挺简单，就是说的不明白。害得我忙了一下午。标点可以重复计数，但是ff等只计一次。给出参考 (1983) baiwcwpgf 2009-05-09 18:53:01