Submission #1857306
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define rep(i,n) for(i=0;i<(n);i++) #define For(i,a,b) for(i=(a);i<(b);i++) #define all(x) (x).begin(),(x).end() typedef long long ll; const double PI=acos(-1.0); int main(){ int i,j=0,k=1; int n; vector<int> r; double ans=0; cin >> n; r.resize(n); rep(i,n) cin >> r[i]; sort(all(r)); for(i=n-1;i>=0;i--){ j+=r[i]*r[i]*k; k*=-1; } ans= j*PI; cout << setprecision(20) << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - N重丸 |
User | kimitsu_emt |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 489 Byte |
Status | AC |
Exec Time | 5 ms |
Memory | 768 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 | 5 ms | 768 KB |
example_1.txt | AC | 1 ms | 256 KB |
maxrand_0.txt | AC | 1 ms | 256 KB |
maxrand_1.txt | AC | 1 ms | 256 KB |
maxrand_2.txt | AC | 1 ms | 256 KB |
random_0.txt | AC | 1 ms | 256 KB |
random_1.txt | AC | 1 ms | 256 KB |
random_2.txt | AC | 1 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 | 1 ms | 256 KB |
random_8.txt | AC | 1 ms | 256 KB |
random_9.txt | AC | 1 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 |