Submission #122007

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Source Code Expand

#include<iostream>
#include<vector>
#include<cstdio>
#include<string>
#include<algorithm>
#include<numeric>
#include<map>
#include<math.h>

using namespace::std;

int main(void)
{

  int N;

  cin >> N;

  double sum = 0;

  for( int i = 1; i <= N; i++)
    {
      sum += ( i * 10000 ) * ( 1 / double(N) );
    }

  printf("%.5lf\n", sum);

  return 0;
}

Submission Info

Judge Result