Submission #6985473


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#include<bits/stdc++.h>

#define debug(n) cerr << #n << ':' << n << endl;

using namespace std;

using  ll = long long;

template<class T,class U>
using umap = unordered_map<T,U>;

template<class T>
using uset = unordered_set<T>;

template<class T>
inline bool change_max(T&a, const T&b){
  if(b > a){
    a = b;
    return true;
  }
  return false;
}

template<class T>
inline bool change_min(T&a, const T&b){
  if(a > b){
    a = b;
    return true;
  }
  return false;
}


int main(){
  int n;cin >> n;
  vector<double>a(n);
  double d;
  for(auto&&e:a){
    cin >> e;
    d+=(1/e);
  }
  cout << fixed << setprecision(10) << (1/d) << endl;
  
  return 0;
}

Submission Info

Submission Time
Task B - Resistors in Parallel
User iwata
Language C++14 (GCC 5.4.1)
Score 200
Code Size 706 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 10
Set Name Test Cases
Sample a01, a02, a03
All a01, a02, a03, b04, b05, b06, b07, b08, b09, b10
Case Name Status Exec Time Memory
a01 AC 1 ms 256 KB
a02 AC 1 ms 256 KB
a03 AC 1 ms 256 KB
b04 AC 1 ms 256 KB
b05 AC 1 ms 256 KB
b06 AC 1 ms 256 KB
b07 AC 1 ms 256 KB
b08 AC 1 ms 256 KB
b09 AC 1 ms 256 KB
b10 AC 1 ms 256 KB