結果
問題 | No.182 新規性の虜 |
ユーザー | yudedako |
提出日時 | 2016-03-24 20:30:00 |
言語 | C++11 (gcc 11.4.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 5,518 bytes |
コンパイル時間 | 1,296 ms |
コンパイル使用メモリ | 88,848 KB |
実行使用メモリ | 8,320 KB |
最終ジャッジ日時 | 2024-10-02 00:14:11 |
合計ジャッジ時間 | 6,017 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | RE | - |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | AC | 1 ms
6,820 KB |
testcase_14 | RE | - |
testcase_15 | AC | 2 ms
5,248 KB |
testcase_16 | AC | 2 ms
5,248 KB |
testcase_17 | AC | 2 ms
5,248 KB |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | AC | 2 ms
5,248 KB |
testcase_24 | AC | 63 ms
8,320 KB |
testcase_25 | AC | 16 ms
5,248 KB |
testcase_26 | RE | - |
testcase_27 | AC | 1 ms
5,248 KB |
evil01.txt | AC | 75 ms
8,320 KB |
evil02.txt | AC | 75 ms
8,320 KB |
コンパイルメッセージ
main.cpp: In member function ‘bool AVLTree::increase_right()’: main.cpp:132:1: warning: control reaches end of non-void function [-Wreturn-type] 132 | } | ^ main.cpp: In member function ‘bool AVLTree::increase_left()’: main.cpp:146:1: warning: control reaches end of non-void function [-Wreturn-type] 146 | } | ^
ソースコード
#include <memory> #include <iostream> #include <vector> class AVLTree { enum class Bias : char { Left, Right, Equal }; using Key = int; using Value = bool; public: AVLTree(const Key &, const Value & = Value{}, std::unique_ptr<AVLTree> && = { nullptr }, std::unique_ptr<AVLTree> && = { nullptr }, const Bias & = Bias::Equal); AVLTree(); void insert(const Key &, const Value &); Value &operator[](const Key &); bool has_key(const Key &) const; void erase(const Key &); private: Value val; std::unique_ptr<AVLTree> left, right; Key key; Bias bias; bool initialized; bool sub_insert(const Key &, const Value &); void turn_right(); void turn_left(); void double_right(); void double_left(); bool increase_right(); bool increase_left(); bool reduce_right(); bool reduce_left(); const AVLTree* leften() const; bool erase_leften(); bool sub_erase(const Key &); bool is_not_leaf() const; }; AVLTree::AVLTree(const Key &k, const Value &v, std::unique_ptr<AVLTree> &&l, std::unique_ptr<AVLTree> &&r, const Bias &b) :key{ k }, val{ v }, left{ std::move(l) }, right{ std::move(r) }, bias{ b }, initialized{ true } {}; AVLTree::AVLTree() :key{}, val{}, left{ nullptr }, right{ nullptr }, bias{ Bias::Equal }, initialized{ false } {}; void AVLTree::insert(const Key &k, const Value &v) { if (initialized) sub_insert(k, v); else { key = k; val = v; initialized = true; } } AVLTree::Value &AVLTree::operator[](const Key &k) { if (k == key) { return val; } else if (k < key) { return left->operator[](k); } else { return right->operator[](k); } } bool AVLTree::has_key(const Key &k) const { if (k == key) return true; else if (k < key && left) return left->has_key(k); else if (k > key && right) return right->has_key(k); return false; } void AVLTree::erase(const Key &k) { if (initialized) { if (k == key) initialized = false; else sub_erase(k); } } bool AVLTree::sub_insert(const Key &k, const Value &v) { if (k < key) { if (!left || left->sub_insert(k, v)) { if (!left) left = std::unique_ptr<AVLTree>(new AVLTree(k, v)); return increase_left(); } else return false; } else if (k > key) { if (!right || right->sub_insert(k, v)) { if (!right) right = std::unique_ptr<AVLTree>(new AVLTree(k, v)); return increase_right(); } else return false; } return false; } void AVLTree::turn_right() { switch (left->bias) { case Bias::Equal: right = std::unique_ptr<AVLTree>(new AVLTree(key, val, std::move(left->right), std::move(right), Bias::Left)); bias = Bias::Right; break; case Bias::Left: right = std::unique_ptr<AVLTree>(new AVLTree(key, val, std::move(left->right), std::move(right), Bias::Equal)); bias = Bias::Equal; } key = left->key; val = left->val; left = std::move(left->left); } void AVLTree::turn_left() { switch (right->bias) { case Bias::Equal: left = std::unique_ptr<AVLTree>(new AVLTree(key, val, std::move(left), std::move(right->left), Bias::Right)); bias = Bias::Left; break; case Bias::Right: left = std::unique_ptr<AVLTree>(new AVLTree(key, val, std::move(left), std::move(right->left), Bias::Equal)); bias = Bias::Equal; } key = right->key; val = right->val; right = std::move(right->right); } void AVLTree::double_right() { left->turn_left(); turn_right(); } void AVLTree::double_left() { right->turn_right(); turn_left(); } bool AVLTree::increase_right() { switch (bias) { case Bias::Equal: bias = Bias::Right; return true; break; case Bias::Left: bias = Bias::Equal; return false; break; case Bias::Right: switch (right->bias) { case Bias::Equal: turn_left(); return true; break; case Bias::Left: double_left(); return false; break; case Bias::Right: turn_left(); return false; } } } bool AVLTree::increase_left() { switch (bias) { case Bias::Equal: bias = Bias::Left; return true; break; case Bias::Right: bias = Bias::Equal; return false; break; case Bias::Left: switch (left->bias) { case Bias::Equal: turn_right(); return true; break; case Bias::Right: double_right(); return false; break; case Bias::Left: turn_right(); return false; } } } bool AVLTree::reduce_right() { return !increase_left(); } bool AVLTree::reduce_left() { return !increase_right(); } const AVLTree* AVLTree::leften() const { if (left) return left->leften(); else return this; } bool AVLTree::erase_leften() { if (left->left) { if (left->erase_leften()) return reduce_left(); else return false; } else { left = std::move(left->right); return true; } } bool AVLTree::sub_erase(const Key &k) { if (k < key) { if (left->is_not_leaf()) { if (left->sub_erase(k)) return reduce_left(); else return false; } else { left.reset(); return bool(right); } } else if (k > key) { if (right->is_not_leaf()) { if (right->sub_erase(k)) return reduce_right(); else return false; } else { right.reset(); return bool(left); } } else { if (right) { auto l = right->leften(); val = l->val; key = l->key; if (right->erase_leften()) return reduce_right(); else return false; } else { *this = std::move(*left); return true; } } }; bool AVLTree::is_not_leaf() const { return right || left; } int main() { AVLTree root; int n; std::cin >> n; std::vector<int> vector(n); for (auto &v:vector){ std::cin >> v; if (root.has_key(v)) root[v] = false; else root.insert(v, true); } int sum = 0; for (const auto &v:vector){ if (root[v]) ++sum; } std::cout << sum << std::endl; return 0; }