結果
| 問題 |
No.715 集合と二人ゲーム
|
| コンテスト | |
| ユーザー |
drken1215
|
| 提出日時 | 2025-05-13 03:47:04 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,093 bytes |
| コンパイル時間 | 2,286 ms |
| コンパイル使用メモリ | 193,860 KB |
| 実行使用メモリ | 7,848 KB |
| 最終ジャッジ日時 | 2025-05-13 03:47:13 |
| 合計ジャッジ時間 | 7,450 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 25 WA * 35 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template<class S, class T> inline bool chmax(S &a, T b) { return (a < b ? a = b, 1 : 0); }
template<class S, class T> inline bool chmin(S &a, T b) { return (a > b ? a = b, 1 : 0); }
using pint = pair<int, int>;
using pll = pair<long long, long long>;
using tint = array<int, 3>;
using tll = array<long long, 3>;
using fint = array<int, 4>;
using fll = array<long long, 4>;
using vint = vector<int>;
using vll = vector<long long>;
using ll = long long;
using u32 = unsigned int;
using u64 = unsigned long long;
using int128 = __int128;
using u128 = unsigned __int128;
template <class T>
using min_priority_queue = priority_queue<T, vector<T>, greater<T>>;
#define REP(i, a) for (long long i = 0; i < (long long)(a); i++)
#define REP2(i, a, b) for (long long i = a; i < (long long)(b); i++)
#define RREP(i, a) for (long long i = (a)-1; i >= (long long)(0); --i)
#define RREP2(i, a, b) for (long long i = (b)-1; i >= (long long)(a); --i)
#define EB emplace_back
#define PB push_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second
#define ALL(x) x.begin(), x.end()
#define COUT(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << endl
// debug stream
template<class T1, class T2> ostream& operator << (ostream &s, pair<T1,T2> P)
{ return s << '<' << P.first << ", " << P.second << '>'; }
template<class T> ostream& operator << (ostream &s, vector<T> P)
{ for (int i = 0; i < P.size(); ++i) { if (i > 0) { s << " "; } s << P[i]; } return s; }
template<class T> ostream& operator << (ostream &s, deque<T> P)
{ for (int i = 0; i < P.size(); ++i) { if (i > 0) { s << " "; } s << P[i]; } return s; }
template<class T> ostream& operator << (ostream &s, vector<vector<T> > P)
{ for (int i = 0; i < P.size(); ++i) { s << endl << P[i]; } return s << endl; }
template<class T> ostream& operator << (ostream &s, set<T> P)
{ for (auto it : P) { s << "<" << it << "> "; } return s; }
template<class T> ostream& operator << (ostream &s, multiset<T> P)
{ for (auto it : P) { s << "<" << it << "> "; } return s; }
template<class T1, class T2> ostream& operator << (ostream &s, map<T1,T2> P)
{ for (auto it : P) { s << "<" << it.first << "->" << it.second << "> "; } return s; }
int main() {
// int M = 100;
// vector<int> dp(M, 0);
// dp[0] = 0;
// REP2(n, 1, M) {
// set<int> S;
// if (n-1 >= 0) S.insert(dp[n-1]);
// if (n-2 >= 0) S.insert(dp[n-2]);
// if (n-3 >= 0) S.insert(dp[n-3]);
// REP2(j, 1, n-3) {
// int k = n-3-j;
// S.insert(dp[j] ^ dp[k]);
// }
// int mex = 0;
// while (S.count(mex)) mex++;
// dp[n] = mex;
// cout << n << ": " << dp[n] << endl;
// }
int N;
cin >> N;
vector<int> A(N);
REP(i, N) cin >> A[i], A[i] -= i;
ll grundy = 0;
for (int i = 0; i < N; ) {
int j = i;
while (j < N && A[j] == A[i]) j++;
grundy ^= (j - i) % 4;
i = j;
}
if (grundy) cout << "First" << endl;
else cout << "Second" << endl;
}
drken1215