結果
問題 | No.1506 Unbalanced Pocky Game |
ユーザー |
![]() |
提出日時 | 2021-05-15 20:45:50 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 80 ms / 2,000 ms |
コード長 | 4,446 bytes |
コンパイル時間 | 1,685 ms |
コンパイル使用メモリ | 175,964 KB |
実行使用メモリ | 47,728 KB |
最終ジャッジ日時 | 2024-10-03 07:50:45 |
合計ジャッジ時間 | 5,290 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 63 |
ソースコード
#pragma region Macros#include <bits/stdc++.h>#define rep(i, n) for(int(i) = 0; (i) < (n); (i)++)#define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++)#define ALL(v) (v).begin(), (v).end()#define LLA(v) (v).rbegin(), (v).rend()#define SZ(v) (int)(v).size()#define INT(...) \int __VA_ARGS__; \read(__VA_ARGS__)#define LL(...) \ll __VA_ARGS__; \read(__VA_ARGS__)#define DOUBLE(...) \double __VA_ARGS__; \read(__VA_ARGS__)#define CHAR(...) \char __VA_ARGS__; \read(__VA_ARGS__)#define STRING(...) \string __VA_ARGS__; \read(__VA_ARGS__)#define VEC(type, name, size) \vector<type> name(size); \read(name)#define VEC2(type, name, height, width) \vector<vector<type>> name(height, vector<type>(width)); \read(name)using namespace std;using ll = long long;using pii = pair<int, int>;using pll = pair<ll, ll>;using Graph = vector<vector<int>>;template <typename T> struct edge {int from, to;T cost;edge(int f, int t, T c) : from(f), to(t), cost(c) {}};template <typename T> using WGraph = vector<vector<edge<T>>>;const int INF = 1 << 30;const ll LINF = 1LL << 60;const int MOD = 1e9 + 7;const char newl = '\n';template <class T> inline vector<T> make_vec(size_t a, T val) {return vector<T>(a, val);}template <class... Ts> inline auto make_vec(size_t a, Ts... ts) {return vector<decltype(make_vec(ts...))>(a, make_vec(ts...));}void read() {}template <class T> inline void read(T &a) { cin >> a; }template <class T, class S> inline void read(pair<T, S> &p) {read(p.first), read(p.second);}template <class T> inline void read(vector<T> &v) {for(auto &&a : v)read(a);}template <class Head, class... Tail>inline void read(Head &head, Tail &...tail) {read(head), read(tail...);}template <class T> void write(const T &a) { cout << a << '\n'; }template <class T> void write(const vector<T> &a) {for(int i = 0; i < a.size(); i++)cout << a[i] << (i + 1 == a.size() ? '\n' : ' ');}template <class Head, class... Tail>void write(const Head &head, const Tail &...tail) {cout << head << ' ';write(tail...);}template <class T> void writel(const T &a) { cout << a << '\n'; }template <class T> void writel(const vector<T> &a) {for(int i = 0; i < a.size(); i++)cout << a[i] << '\n';}template <class Head, class... Tail>void writel(const Head &head, const Tail &...tail) {cout << head << '\n';write(tail...);}template <class T> auto sum(const vector<T> &a) {return accumulate(ALL(a), T(0));}template <class T> auto min(const vector<T> &a) { return *min_element(ALL(a)); }template <class T> auto max(const vector<T> &a) { return *max_element(ALL(a)); }template <class T> inline void chmax(T &a, T b) { (a < b ? a = b : a); }template <class T> inline void chmin(T &a, T b) { (a > b ? a = b : a); }struct IO {IO() {ios::sync_with_stdio(false);cin.tie(nullptr);cout << fixed << setprecision(10);}} io;#pragma endregionint main() {INT(n);VEC(int, a, n);auto dp = make_vec(n, 2, 2, -1);dp[0][0][0] = 1;dp[0][1][0] = 1;dp[0][0][1] = 1;dp[0][1][1] = 1;// dp[i][j][k]:=i個目からスタート 状態j k==1?先手:後手auto rec = [&](auto &&rec, int i, int j, bool alice) -> int {if(dp[i][j][alice] != -1)return dp[i][j][alice];bool f = 1;if(j == 1) {f &= rec(rec, i, j - 1, !alice);}f &= rec(rec, i - 1, (a[i - 1] == 1 ? 0 : 1), !alice);return dp[i][j][alice] = !f;};write(rec(rec, n - 1, a[n - 1] != 1, 1) ? "Alice" : "Bob");}