POJ2418 Hardwood Species

POJ2418

筱柒Littleseven
QQ：3534947775

题目链接

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#define MAXN 300030
using namespace std;
#define long long LL
#define eps 1e-8
int tot=0,sum; char ss[110],s[110];
struct Trie{ int nex[256]; double num;}trie[MAXN];
void insert(char s[])
  {
  	int now=0,len=strlen(s+1);
  	for(int i=1;i<=len;i++)
  	{
  		int ch=s[i];
  		if(!trie[now].nex[ch]) trie[now].nex[ch]=++tot;
  		now=trie[now].nex[ch];
  	}
  	trie[now].num++;
  }
void print(int p,int len)
{
  if(trie[p].num>=eps) printf("%s %.4lf\n",ss,trie[p].num*100/sum);
  for(int i=1;i<=256;i++)
  {
  	if(trie[p].nex[i]!=0)
  	{
  		ss[len]=i; print(trie[p].nex[i],len+1); ss[len]='\0';
  	}
  }
}
int main()
{
  while(gets(s+1))
  {
  	insert(s); sum++;
  }
  print(0,0);
  return 0;
}

标签：Hardwood,char,int,num,POJ2418,include,Species,define
来源： https://blog.csdn.net/qq_43473791/article/details/94402471