結果
問題 | No.1551 誕生日の三角形 |
ユーザー | packer_jp |
提出日時 | 2021-06-18 21:22:59 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 1,000 ms |
コード長 | 2,867 bytes |
コンパイル時間 | 1,839 ms |
コンパイル使用メモリ | 201,896 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 19:48:26 |
合計ジャッジ時間 | 2,578 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; #define rep(i, n) for (ll i = 0; i < (ll)(n); i++) #define reps(i, n) for (ll i = 1; i <= (ll)(n); i++) #define all(a) (a).begin(), (a).end() #define uniq(a) (a).erase(unique(all(a)), (a).end()) #define bit(n) (1LL << (n)) #define dump(a) cerr << #a " = " << (a) << endl using vll = vector<ll>; using pll = pair<ll, ll>; template <typename T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>; constexpr double PI = 3.1415926535897932384626433832795028; constexpr ll DY[9] = {0, 1, 0, -1, 1, 1, -1, -1, 0}; constexpr ll DX[9] = {1, 0, -1, 0, 1, -1, -1, 1, 0}; ll sign(ll a) { return (a > 0) - (a < 0); } ll cdiv(ll a, ll b) { return (a - 1 + b) / b; } template <typename T> T sq(T a) { return a * a; } template <typename T, typename U> bool chmax(T &a, const U &b) { if (a < b) { a = b; return true; } return false; } template <typename T, typename U> bool chmin(T &a, const U &b) { if (b < a) { a = b; return true; } return false; } template <typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &a) { os << "(" << a.first << ", " << a.second << ")"; return os; } template <typename T, typename U, typename V> ostream &operator<<(ostream &os, const tuple<T, U, V> &a) { auto [t, u, v] = a; os << "(" << t << ", " << u << ", " << v << ")"; return os; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &a) { os << "("; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << ")"; return os; } template <typename T> ostream &operator<<(ostream &os, const deque<T> &a) { os << "("; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << ")"; return os; } template <typename T> ostream &operator<<(ostream &os, const set<T> &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template <typename T> ostream &operator<<(ostream &os, const multiset<T> &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template <typename T, typename U> ostream &operator<<(ostream &os, const map<T, U> &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } struct setup { static constexpr ll PREC = 20; setup() { cout << fixed << setprecision(PREC); cerr << fixed << setprecision(PREC); }; } setup; int main() { ll l; cin >> l; cout << pow(l / 3.0, 2) * sqrt(3) / 4 << endl; }