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我真就不明白了,拿我的程序测试的数据和别人AC的代码测试的数据吻合,为什么WA啊!!WA的吐血了,做了好几个题目都是这样,没信心了!

Posted by lovexinbao at 2011-05-11 09:36:10 on Problem 1091
我测试
5 5 
out 3124
10 10
out 9990233352
别人AC的代码也是这样!
为什么我的过不了啊!
我的CODE:
#include <iostream>
#include <vector>
#include<math.h>
using namespace std;
bool judgeprime(int m)
{
  int x=0;
  bool isprime=true;
  for(int i=2;i<=sqrt(m*1.0);i++)
  {
    if(m%i==0)
    {
      isprime=false;
      break;
    }
  }
  return isprime;
}
int main()
{    
  int n,m;
  __int64 result_number;
  cin>>n>>m;
  if(judgeprime(m)==true)
  {
    result_number=(pow(m*1.0,n*1.0)-1);
  }
  else
  {
    vector<int> prime;
    for(int i=2;i<=m/2;i++)
    {
      
      if(m%i==0&&judgeprime(i)==true)
      {
        prime.push_back(m/i);
      }      
    }
   result_number=pow(m*1.0,n*1.0);
  for(int i=0;i< prime.size();i++)  
  {
    result_number-=pow(prime[i]*1.0,n*1.0);
  }
  result_number+=(prime.size()-1);
  }  
  cout<<result_number<<endl;
  system("pause")  ;
  return 0;
}
应该没错!__int 64 不是说能过吗?我要吐血了! 我做了几道题目都是这样!测试的数据(随即的)都和别人AC代码相同,就是过不了!.WA的肠子都出来了!

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