HDOJ2072(map简单应用)(杭电ac100题)

#include <iostream> 
#include <cstring>
#include <string>
#include <cstdio>
#include <algorithm>
#include <stack>
#include <math.h>
#include<iostream>
#include <map>

using namespace std;
#define INF  0xfffff;//0x代表十六进制

string s1;
string s2;  //捕获s1的单词 
map<string, int>m;  

int main()
{
while (getline(cin, s1), s1 != "#")
{
s1 += '\'';  //以空格判断单词
m.clear();
int l = s1.length(), f;
for (int i = 0; i < l; i++)
{
if (s1[i] >= 'a'&&s1[i] <= 'z')
{
s2 += s1[i];  
f = 1;
}
else if (f)  //f防止连续空格
{
m[s2]++;
s2.clear();
f=0;
}
}
cout << m.size() << endl;
}
}