uva 188 - Perfect Hash 模拟

     这题只要读懂题就等于没难度了，完全照着题目给的公式模拟即可

     要注意的就是末尾的多余空格。

/*
author:jxy
lang:C/C++
university:China,Xidian University
**If you need to reprint,please indicate the source**
*/
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#define INF 1E9
using namespace std;
char org[80],t[20];
int calc()
{
    int now=0;
    for(int i=0;t[i];i++)
        now=(now<<5)+t[i]-'a'+1;
    return now;
}
int w[20];
int main()
{
    int C,pos,len,n,now,i,j,a,b;
    while(gets(org)!=NULL)
    {
        if(org[0]=='\0')break;
        C=INF;pos=-1;n=0;
        len=strlen(org);
        while(++pos<len)
        {
            if(!isalpha(org[pos]))continue; //跳过空格
            if(sscanf(org+pos,"%s",t)==0)break;//这句话木有用……
            w[n++]=calc();
            C=min(C,w[n-1]);
            pos+=strlen(t);
        }
        bool flag=1;
        while(flag)
        {
            flag=0;
            for(i=0;i<n;i++)
             for(j=i+1;j<n;j++)
             {
                 a=C/w[i];b=C/w[j];
                 if(a%n==b%n)
                 {
                     C=min((a+1)*w[i],(b+1)*w[j]);
                     flag=1;
                 }
             }
        }
        printf("%s\n%d\n\n",org,C);
    }
}