結果
問題 | No.103 素因数ゲーム リターンズ |
ユーザー |
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提出日時 | 2020-01-26 18:12:30 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 5,000 ms |
コード長 | 3,698 bytes |
コンパイル時間 | 1,590 ms |
コンパイル使用メモリ | 134,088 KB |
最終ジャッジ日時 | 2025-01-08 20:37:20 |
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 20 |
ソースコード
#include <iostream> #include <iomanip> #include <string> #include <cmath> #include <algorithm> #include <vector> #include <set> #include <map> #include <unordered_map> #include <unordered_set> #include <list> #include <stack> #include <queue> #include <bitset> #include <numeric> #include <cassert> #include <array> #include <memory> #include <random> #ifdef DEBUG #include "./Lib/debug.hpp" #include "./Lib/Timer.hpp" #include "./Lib/sample.hpp" #else #define dump(...) #endif /* (=^o^=) */ #define int ll /* macro */ #define FOR(i, b, e) for(ll i = (ll)(b); i < (ll)(e); ++i) #define RFOR(i, b, e) for(ll i = (ll)(e-1); i >= (ll)(b); --i) #define REP(i, n) FOR(i, 0, n) #define RREP(i, n) RFOR(i, 0, n) #define REPC(x,c) for(const auto& x:(c)) #define REPI2(it,b,e) for(auto it = (b); it != (e); ++it) #define REPI(it,c) REPI2(it, (c).begin(), (c).end()) #define RREPI(it,c) REPI2(it, (c).rbegin(), (c).rend()) #define REPI_ERACE2(it, b, e) for(auto it = (b); it != (e);) #define REPI_ERACE(it, c) REPI_ERACE2(it, (c).begin(), (c).end()) #define ALL(x) (x).begin(),(x).end() #define cauto const auto& /* macro func */ template<class T> inline auto sort(T& t) { std::sort(ALL(t)); } template<class T> inline auto rsort(T& t) { std::sort((t).rbegin(), (t).rend()); } template<class T> inline auto unique(T& t) { (t).erase(unique((t).begin(), (t).end()), (t).end()); } template<class T, class S> inline auto chmax(T& t, const S& s) { if (s > t) { t = s; return true; } return false; } template<class T, class S> inline auto chmaxE(T& t, const S& s) { if (s >= t) { t = s; return true; } return false; } template<class T, class S> inline auto chmin(T& t, const S& s) { if (s < t) { t = s; return true; } return false; } inline auto BR() { std::cout << "\n"; } /* type define */ using ll = long long; using PAIR = std::pair<ll, ll>; using VS = std::vector<std::string>; using VL = std::vector<long long>; using VVL = std::vector<VL>; using VVVL = std::vector<VVL>; using VD = std::vector<double>; template<class T> using V = std::vector<T>; /* using std */ using std::cout; constexpr char endl = '\n'; using std::cin; using std::pair; using std::string; using std::stack; using std::queue; using std::vector; using std::list; using std::map; using std::unordered_map; using std::multimap; using std::unordered_multimap; using std::set; using std::unordered_set; using std::unordered_multiset; using std::multiset; using std::bitset; using std::priority_queue; using std::tuple; /* constant value */ constexpr ll MOD = 1000000007; //constexpr ll MOD = 998244353; /* Initial processing */ struct Preprocessing { Preprocessing() { std::cin.tie(0); std::ios::sync_with_stdio(0); }; }_Preprocessing; /* Remove the source of the bug */ inline signed pow(signed, signed) { assert(false); return -1; } /* define hash */ namespace std { template <> class hash<std::pair<ll, ll>> { public: size_t operator()(const std::pair<ll, ll>& x) const { return hash<ll>()(1000000000 * x.first + x.second); } }; } /* input */ template<class T> std::istream& operator >> (std::istream& is, vector<T>& vec) { for (T& x : vec) is >> x; return is; } //============================================================================================= std::unordered_map<ll, ll> prime_decomposition(ll n) { ll i = 2; std::unordered_map<ll, ll> table{}; while (i * i <= n) { while (n % i == 0) { n /= i; table[i]++; }++i; } if (n > 1) { table[n]++; return table; } return table; } signed main() { ll n; cin >> n; VL v(n); cin >> v; ll p = 0; REPC(x, v) { REPC(t, prime_decomposition(x)) { auto u = t.second; p ^= (u % (3)); } } cout << ((p > 0) ? "Alice" : "Bob") << endl; }