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前面的两个函数没有用到

Posted by mengzhu929 at 2007-04-23 18:49:13 on Problem 2945
In Reply To:这个程序怎么错了? Posted by:mengzhu929 at 2007-04-23 18:48:31
> #include <iostream>
> #include <string>
> #include <algorithm>
> #include <map>
> 
> using namespace std;
> int n; int m;
> int get_hash_value(char* p)
> {
> 	int a = 0;
> 	for(int k = 0; k < m; k++)
> 	{
> 		switch(p[k])
> 		{
> 			case 'A': a = a+2*(20-k); break;
> 			case 'C': a = a+3*(20-k); break;
> 			case 'G': a = a+4*(20-k); break;
> 			case 'T': a = a+5*(20-k); break;
> 		}
> 		//a += (p[k]-'A')*(k+1);
> 	}
> 	return a;
> }
> 
> int ELFhash(char *key)
> {
> 	unsigned long h=0;
> 	while(*key)
> 	{
> 		h=(h<<4)+*key++;
> 		unsigned long g=h&0Xf0000000L;
> 		if(g)
> 			h^=g>>24;
> 		h&=~g;
> 	}
> 	return h%54117;
> }	
> 
> 
> map<string, int> string_count;
> int copy_count[20001];
> 
> int main(int argc, char* argv[])
> {
> 	while(cin >> n >> m)
> 	{
> 		memset(copy_count, 0, sizeof(copy_count));
> 		if(n == 0) break;
> 		for(int i = 0; i < n; i++)
> 		{
> 			char str[20];
> 			scanf("%s", str);
> 		//	int value = get_hash_value(str);
> 			map<string, int>::iterator iter;
> 			if((iter = string_count.find(str)) != string_count.end())
> 			{
> 				iter->second++;
> 			}
> 			else
> 			{
> 				string_count.insert(make_pair(str, 1));
> 			}
> 		}
> 		for(map<string, int>::iterator iter = string_count.begin(); iter != string_count.end(); iter++)
> 		{
> 			copy_count[iter->second]++;
> 		}
> 		for(int k = 1; k <= n; k++)
> 		{
> 			printf("%d\n", copy_count[k]);
> 		}
> 	}
> 	return 0;
> }

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