字符串的完美度

【原创】字符串的完美度

// test.cpp : 定义控制台应用程序的入口点。  // editor: Visual C++ 2010 express  // system: win7 x32  // create: 2013-07-24 15:56FM  // author: jiang kejun <[e-mail]>    #include "stdafx.h"  #include <string>  #include <iostream>#include <algorithm>using namespace std;    int perfect(const string &s);int _tmain(int argc, _TCHAR* argv[])  {      string s;      cout<<"please:"<<"";      cin>>s;      cout<<perfect(s)<<endl;      system("pause");      return 0;        }  string az="abcdefghijklmnopqrstuvwxyz"; const int N = 26; int perfect(const string &s)  {    int i=0,j=0,pos=0,v=0;      int arr[N]={0};      while(i<s.length())      {          pos = az.find(s.at(i));          if(pos!=-1){arr[pos]+=1;        }         i++;      }sort(&arr[0], &arr[N]);for(;j<N;j++){if(arr[j]>0){v+= (j+1)*arr[j];}}    return v;}