結果

問題 No.761 平均値ゲーム
ユーザー Gosu_Hiroo
提出日時 2020-06-30 01:47:23
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 1,010 ms / 2,000 ms
コード長 8,169 bytes
コンパイル時間 1,855 ms
コンパイル使用メモリ 171,324 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-07-19 06:12:20
合計ジャッジ時間 37,904 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
other AC * 100
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

/**
* code generated by JHelper
* More info: https://github.com/AlexeyDmitriev/JHelper
* @author
*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#define VI vector<int>
#define G(size_1) vector<vector<int>>(size_1, vector<int>())
#define SZ(x) ((int)(x).size())
#define READ ({int t;cin >> t;t;})
#define PII pair<int, int>
#define FOR(i, _begin, _end) for (__typeof(_end) end = _end, begin = _begin, i = (begin) - ((begin) > (end)); i != (end) - ((begin) > (end)); i += 1
    - 2 * ((begin) > (end)))
#define REP(i, end) for (__typeof(end) i = 0, _len = (end); i < (_len); i += 1)
#define ALL(x) (x).begin(),(x).end()
#define F first
#define S second
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
#define MOD(x, m) ((((x) % (m)) + (m)) % (m))
#define BIT(n) (1LL<<(n))
#define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() );
#define EB emplace_back
#define PB push_back
#define fcout cout << fixed << setprecision(12)
#define fcerr cerr << fixed << setprecision(12)
#define print(x) cout << (x) << endl
#define fprint(x) cout << fixed << setprecision(12) << (x) << endl
# define BYE(a) do { cout << (a) << endl; return ; } while (false)
#ifdef DEBUG
#define ERR(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator<string> _it(_ss); _err(cerr
    ,_it, args); }
#define DBG(x) cerr << #x << " is " << x << endl;
#else
#define DBG(x) {};
#define ERR(args...) {};
#endif
void _err(std::ostream& cerr,istream_iterator<string> it) {cerr << endl;}
template<typename T, typename... Args>
void _err(std::ostream& cerr, istream_iterator<string> it, T a, Args... args) {
cerr << *it << " = " << a << " ";
_err(cerr,++it, args...);
}
const double pi = 2 * acos(.0);
const int inf = 0x3f3f3f3f;
const ll mod = (ll) (1e9) + 7;
template<class T>bool Chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool Chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
template <typename T>
istream& operator >> (istream& is, vector<T>& V) {
for(auto&& ele : V)is >> ele;
return is;
}
template <typename T>
ostream& operator << (ostream& os, const vector<T> V) {
os << "[";
int cnt = 0;
T curr;
if(!V.empty()){
for (int i = 0; i < V.size() - 1; ++i) {
if(V[i] == curr)cnt ++;
else cnt = 0;
if(cnt == 4)os << "... ";
if(cnt < 4)
os << i << ":" << V[i] << " ";
curr = V[i];
}
os << V.size() - 1 << ":" << V.back();
}
os << "]\n";
return os;
}
template <typename T, typename U>
ostream& operator << (ostream& os, const pair<T,U> P) {
os << "(";
os << P.first << "," << P.second;
os << ")";
return os;
}
template <typename T, typename U>
ostream& operator << (ostream& os, const set<T,U> V) {
os << "{";
if(!V.empty()){
auto it = V.begin();
for (int i = 0; i < V.size() -1; ++i) {
os << *it << " ";
it++;
}
os << *it;
}
os << "}\n";
return os;
}
template <typename K, typename H, typename P>
ostream& operator << (ostream& os, const unordered_set<K, H, P> V) {
os << "{";
if(!V.empty()){
auto it = V.begin();
for (int i = 0; i < V.size() -1; ++i) {
os << *it << " ";
it++;
}
os << *it;
}
os << "}\n";
return os;
}
template <typename K, typename C>
ostream& operator << (ostream& os, const multiset<K, C> V) {
os << "{";
if(!V.empty()){
auto it = V.begin();
for (int i = 0; i < V.size() -1; ++i) {
os << *it << " ";
it++;
}
os << *it;
}
os << "}";
return os;
}
template <typename K, typename T, typename C>
ostream& operator << (ostream& os, const map<K,T,C> V) {
os << "{";
if(!V.empty()){
auto it = V.begin();
for (int i = 0; i < V.size() -1; ++i) {
os << "(";
os << it->first << "," << it->second;
os << ") ";
it++;
}
os << "(";
os << it->first << "," << it->second;
os << ")";
}
os << "}\n";
return os;
}
template <typename K, typename T, typename C>
ostream& operator << (ostream& os, const unordered_map<K,T,C> V) {
os << "{";
if(!V.empty()){
auto it = V.begin();
for (int i = 0; i < V.size() -1; ++i) {
os << "(";
os << it->first << "," << it->second;
os << ") ";
it++;
}
os << "(";
os << it->first << "," << it->second;
os << ")";
}
os << "}\n";
return os;
}
template <typename T>
ostream& operator << (ostream& os, const deque<T> V) {
os << "[";
if (!V.empty()) {
for (int i = 0; i < V.size() - 1; ++i) {
os << V[i] << "->";
}
if (!V.empty())os << V.back();
}
os << "]\n";
return os;
};
template <typename T, typename Cont, typename Comp>
ostream& operator << (ostream& os, const priority_queue<T, Cont, Comp> V) {
priority_queue<T, Cont, Comp> _V = V;
os << "[";
if(!_V.empty()){
while(_V.size() > 1){
os << _V.top() << "->";
_V.pop();
}
os << _V.top();
}
os << "]\n";
return os;
};
template <class F>
struct y_combinator {
F f; // the lambda will be stored here
// a forwarding operator():
template <class... Args>
decltype(auto) operator()(Args&&... args) const {
// we pass ourselves to f, then the arguments.
// the lambda should take the first argument as `auto&& recurse` or similar.
return f(*this, std::forward<Args>(args)...);
}
};
// helper function that deduces the type of the lambda:
template <class F>
y_combinator<std::decay_t<F>> recursive(F&& f){
return {std::forward<F>(f)};
}
struct hash_pair {
template <class T1, class T2>
size_t operator()(const pair<T1, T2>& p) const
{
auto hash1 = hash<T1>{}(p.first);
auto hash2 = hash<T2>{}(p.second);
return hash1 ^ hash2;
}
};
template <typename T, typename U>
std::vector<T> multi_vector(int n, U v) {
return std::vector<T>(n, v);
}
template <typename U, typename... Args>
auto multi_vector(int n, Args... args) {
auto val = multi_vector<U>(std::forward<Args>(args)...);
return std::vector<decltype(val)>(n, std::move(val));
}
class Task {
public:
ll power_mod(ll x, ll y, ll p) {
if (y < 0)return 0;
ll res = 1;
x = x % p;
while (y) {
if (y & 1)
res = (res * x) % p;
y = y >> 1;
x = (x * x) % p;
}
return res;
}
void solve(std::istream& cin, std::ostream& cout, std::ostream& cerr) {
int N;cin >> N;
vector<ll> a(N), s_a(N+1);cin >> a;
REP(i,N)s_a[i+1] = s_a[i] + a[i];
auto mex = [&](int a, int b){
if(a > b)swap(a,b);
if(a)return 0;
if(b - a > 1)return a+1;
return b+1;
};
auto dp = recursive([&](auto &&dp, int l, int r)->int{
std::cerr << l << " " << r << endl;
if(r - l == 1)return 1;
if(r == l)return 0;
ll sum = s_a[r] - s_a[l];
if(sum % (r - l) == 0){
int m = lower_bound(a.begin() + l, a.begin() + r, sum/(r-l)) - a.begin();
if(l == m || r == m)return 1;
return mex(dp(l,m), dp(m,r));
}
else{
int m = lower_bound(a.begin() + l, a.begin() + r, (sum + r - l - 1)/(r-l)) - a.begin();
if(l == m || r == m)return 1;
return mex(dp(l,m), dp(m,r));
}
});
print(dp(0, N)?"First":"Second");
}
};
#undef int
int main() {
Task solver;
std::istream& in(std::cin);
std::ostream& out(std::cout);
std::ostringstream err;
in.tie(0); ios::sync_with_stdio(0);
solver.solve(in, out,err);
return 0;
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0