题解 | #[NOIP2008]笨小猴#

#include<iostream>
#include<string.h>
#include<stdlib.h>
using namespace std;
int main()
{
    string word;
    int max=0,min=100,len=0;
    int num[26]={};
    bool check=false;
    getline(cin,word);
    len=word.size();
    for(int i=0;i<len;i++)
    {
       if(word[i]>='a' && word[i]<='z')
       {
           num[word[i]-'a']++;
       }
        if(word[i]>='A'&&word[i]<='Z')
        {
            num[word[i]-'A']++;
        }
    }
    for(int i=0;i<26;i++)
    {
        if(num[i]>max)
        {
            max=num[i];
        }
        if(num[i]!=0&&num[i]<min)
        {
            min=num[i];
        }
    }
    if(max-min!=0)
    {
        for(int i=2;i<max-min;i++)
        {
            if((max-min)%i==0)
            {
                break;
            }
            else
            {
                check=true;
            }
        }
        if(check  ||max-min==2)
        {
            cout<<"Lucky Word"<<endl;
            cout<<max-min;
        }
        else
        {
             cout<<"No Answer"<<endl;
             cout<<0;
        }
    }
    else
    {
        cout<<"No Answer"<<endl;
        cout<<0;
    }
    return 0;
}