Submission #1371150
Source Code Expand
#include<iostream> #include<string> #include<algorithm> #include<vector> #include<iomanip> using namespace std; #define PI 3.14159265359 int main(){ int n; cin>>n; vector<double> r; for(int i=0;i<n;i++){ double t; cin>>t; r.push_back(t); } sort(r.begin(),r.end(),greater<double>()); double ans=0; for(int i=0;i<r.size();i++){ if(!(i%2)){ ans+=r[i]*r[i]; } else ans-=r[i]*r[i]; } cout<<fixed<<setprecision(10)<<ans*PI<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - N重丸 |
User | SugarDragon5 |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 487 Byte |
Status | AC |
Exec Time | 2 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | example_0.txt, example_1.txt |
All | example_0.txt, example_1.txt, maxrand_0.txt, maxrand_1.txt, maxrand_2.txt, random_0.txt, random_1.txt, random_2.txt, random_3.txt, random_4.txt, random_5.txt, random_6.txt, random_7.txt, random_8.txt, random_9.txt, special_0.txt, special_1.txt, special_2.txt, special_3.txt, example_0.txt, example_1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
example_0.txt | AC | 1 ms | 256 KB |
example_1.txt | AC | 1 ms | 256 KB |
maxrand_0.txt | AC | 2 ms | 256 KB |
maxrand_1.txt | AC | 2 ms | 256 KB |
maxrand_2.txt | AC | 2 ms | 256 KB |
random_0.txt | AC | 1 ms | 256 KB |
random_1.txt | AC | 1 ms | 256 KB |
random_2.txt | AC | 2 ms | 256 KB |
random_3.txt | AC | 1 ms | 256 KB |
random_4.txt | AC | 1 ms | 256 KB |
random_5.txt | AC | 1 ms | 256 KB |
random_6.txt | AC | 1 ms | 256 KB |
random_7.txt | AC | 2 ms | 256 KB |
random_8.txt | AC | 1 ms | 256 KB |
random_9.txt | AC | 2 ms | 256 KB |
special_0.txt | AC | 1 ms | 256 KB |
special_1.txt | AC | 1 ms | 256 KB |
special_2.txt | AC | 1 ms | 256 KB |
special_3.txt | AC | 1 ms | 256 KB |