zju 2744 回文字符 hdu 1544

#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
    string s;
    while(cin>>s)
    {
        int i,begin,end,total = s.size(),l = s.size();
        for(i = 0 ; i < s.size(); ++i)
        {
            begin = i - 1; end = i+1;//当字符串长度为奇数时
            while(s[begin]==s[end]&&begin >= 0&&end < l)
            {
                total++;begin--;end++;
            }
            begin = i;end = i+1;//当字符串长度为偶数时
            while(s[begin]==s[end]&&begin >= 0&&end < l)
            {
                total++;begin--;end++;
            }
           
        }
        cout<<total<<endl;
    }
    return 0;   
}

#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
    string s;
    while(cin>>s)
    {
        int i,begin,end,total = s.size(),l = s.size();
        for(i = 0 ; i < s.size(); ++i)
        {
            begin = i - 1; end = i+1;//当字符串长度为奇数时
            while(s[begin]==s[end]&&begin >= 0&&end < l)
            {
                total++;begin--;end++;
            }
            begin = i;end = i+1;//当字符串长度为偶数时
            while(s[begin]==s[end]&&begin >= 0&&end < l)
            {
                total++;begin--;end++;
            }
          
        }
        cout<<total<<endl;
    }
    return 0;  
}