結果
| 問題 | No.2343 (l+r)/2 |
| ユーザー |
 otera
|
| 提出日時 | 2023-06-09 21:17:26 |
| 言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 8,243 bytes |
| コンパイル時間 | 1,943 ms |
| コンパイル使用メモリ | 206,860 KB |
| 実行使用メモリ | 11,624 KB |
| 最終ジャッジ日時 | 2024-06-10 12:46:21 |
| 合計ジャッジ時間 | 3,113 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / 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 | 1 ms
6,812 KB |
| testcase_01 | AC | 51 ms
6,940 KB |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | AC | 14 ms
8,448 KB |
| testcase_05 | AC | 6 ms
6,944 KB |
| testcase_06 | AC | 6 ms
6,940 KB |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | AC | 5 ms
6,944 KB |
| testcase_11 | AC | 15 ms
9,856 KB |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | AC | 19 ms
11,624 KB |
ソースコード
/**
* author: otera
**/
#include<bits/stdc++.h>
namespace otera{
template <typename Container>
class run_length {
public:
using content_type = typename Container::value_type;
using value_type = std::pair<content_type, long long>;
run_length(const Container &c) noexcept {
_compressed = compress(c);
}
void clear() {
_compressed.clear();
}
int size() const noexcept {
return (int)_compressed.size();
}
const value_type &operator[](int compressed_index) const {
return _compressed[compressed_index];
}
auto begin() const noexcept { return _compressed.begin(); }
auto end() const noexcept { return _compressed.end(); }
auto rbegin() const noexcept { return _compressed.rbegin(); }
auto rend() const noexcept { return _compressed.rend(); }
auto back() const noexcept { return _compressed.back(); }
auto front() const noexcept { return _compressed.front(); }
void push_back(const content_type &val, const long long cnt = 1) {
if (_compressed.size() and _compressed.back().first == val) {
_compressed.back().second += cnt;
} else {
_compressed.emplace_back(val, cnt);
}
}
void pop_back(long long cnt = 1) {
while(_compressed.size() and cnt > 0) {
if(cnt < _compressed.back().second) {
_compressed.back().second -= cnt;
cnt = 0;
} else {
cnt -= _compressed.back().second;
_compressed.pop_back();
}
}
}
static std::vector<value_type> compress(const Container &c) {
std::vector<value_type> res;
for(auto ite_l = c.begin(), ite_r = c.begin(); ite_l != c.end(); ite_l = ite_r) {
while (ite_r != c.end() and *ite_l == *ite_r) ++ite_r;
res.emplace_back(*ite_l, ite_r - ite_l);
}
return res;
}
private:
std::vector<value_type> _compressed;
};
} // namespace otera
namespace otera {}
using namespace std;
using namespace otera;
struct io_setup {
io_setup(int precision = 20) {
ios::sync_with_stdio(false);
cin.tie(0);
cout << fixed << setprecision(precision);
}
} io_setup_ {};
#define int long long
using ll = long long;
using ld = long double;
using ull = unsigned long long;
using i128 = __int128_t;
using u128 = __uint128_t;
#define repa(i, n) for(int i = 0; i < (n); ++ i)
#define repb(i, a, b) for(int i = (a); i < (b); ++ i)
#define repc(i, a, b, c) for(int i = (a); i < (b); i += (c))
#define overload4(a, b, c, d, e, ...) e
#define overload3(a, b, c, d, ...) d
#define rep(...) overload4(__VA_ARGS__, repc, repb, repa)(__VA_ARGS__)
#define rep1a(i, n) for(int i = 0; i <= (n); ++ i)
#define rep1b(i, a, b) for(int i = (a); i <= (b); ++ i)
#define rep1c(i, a, b, c) for(int i = (a); i <= (b); i += (c))
#define rep1(...) overload4(__VA_ARGS__, rep1c, rep1b, rep1a)(__VA_ARGS__)
#define rev_repa(i, n) for(int i=(n)-1;i>=0;i--)
#define rev_repb(i, a, b) assert((a) > (b));for(int i=(a);i>(b);i--)
#define rev_rep(...) overload3(__VA_ARGS__, rev_repb, rev_repa)(__VA_ARGS__)
#define rev_rep1a(i, n) for(int i=(n);i>=1;i--)
#define rev_rep1b(i, a, b) assert((a) >= (b));for(int i=(a);i>=(b);i--)
#define rev_rep1(...) overload3(__VA_ARGS__, rev_rep1b, rev_rep1a)(__VA_ARGS__)
#define for_subset(t, s) for(ll t = (s); t >= 0; t = (t == 0 ? -1 : (t - 1) & (s)))
typedef pair<int, int> P;
typedef pair<ll, ll> LP;
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define eb emplace_back
#define mkp make_pair
#define mkt make_tuple
#define fr first
#define sc second
#define all(c) std::begin(c), std::end(c)
#define rall(c) std::rbegin(c), std::rend(c)
#define lb(c, x) distance(std::begin(c), lower_bound(all(c), (x)))
#define ub(c, x) distance(std::begin(c), upper_bound(all(c), (x)))
#define Sort(a) sort(all(a))
#define Rev(a) reverse(all(a))
#define Uniq(a) sort(all(a));(a).erase(unique(all(a)),std::end(a))
#define si(c) (int)(c).size()
inline ll popcnt(ull a){ return __builtin_popcountll(a); }
#define kth_bit(x, k) ((x>>k)&1)
#define unless(A) if(!(A))
#define elif else if
ll modulo(ll n, ll d){ return (n % d + d) % d; };
ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; }
ll intpow(ll a, ll b, ll m) {ll ans = 1; while(b){ if(b & 1) (ans *= a) %= m; (a *= a) %= m; b /= 2; } return ans; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
#define INT(...) int __VA_ARGS__;in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;in(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__;in(__VA_ARGS__)
#define vec(type,name,...) vector<type>name(__VA_ARGS__)
#define VEC(type,name,size) vector<type>name(size);in(name)
#define vv(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__))
#define VV(type,name,h,w) vector<vector<type>>name(h,vector<type>(w));in(name)
#define vvv(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__)))
template <class T> using vc = vector<T>;
template <class T> using vvc = vector<vc<T>>;
template <class T> using vvvc = vector<vvc<T>>;
template <class T> using vvvvc = vector<vvvc<T>>;
template <class T> using pq = priority_queue<T>;
template <class T> using pqg = priority_queue<T, vector<T>, greater<T>>;
template <class T, class U> using umap = unordered_map<T, U>;
template<class T> void scan(T& a){ cin >> a; }
template<class T> void scan(vector<T>& a){ for(auto&& i : a) scan(i); }
void in(){}
template <class Head, class... Tail> void in(Head& head, Tail&... tail){ scan(head); in(tail...); }
void print(){ cout << ' '; }
template<class T> void print(const T& a){ cout << a; }
template<class T> void print(const vector<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ cout << ' '; print(*i); } }
int out(){ cout << '\n'; return 0; }
template<class T> int out(const T& t){ print(t); cout << '\n'; return 0; }
template<class Head, class... Tail> int out(const Head& head, const Tail&... tail){ print(head); cout << ' '; out(tail...); return 0; }
#define CHOOSE(a) CHOOSE2 a
#define CHOOSE2(a0,a1,a2,a3,a4,x,...) x
#define debug_1(x1) cout<<#x1<<": "<<x1<<endl
#define debug_2(x1,x2) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<endl
#define debug_3(x1,x2,x3) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<endl
#define debug_4(x1,x2,x3,x4) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<", "#x4<<": "<<x4<<endl
#define debug_5(x1,x2,x3,x4,x5) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<", "#x4<<": "<<x4<<", "#x5<<": "<<x5<<endl
#ifdef DEBUG
#define debug(...) CHOOSE((__VA_ARGS__,debug_5,debug_4,debug_3,debug_2,debug_1,~))(__VA_ARGS__)
#define dump(...) { print(#__VA_ARGS__); print(":"); out(__VA_ARGS__); }
#else
#define debug(...)
#define dump(...)
#endif
void solve() {
INT(n);
VEC(int, a, n);
vector dp(n + 1, vc<int>(3, 0));
dp[0][1] = 1;
rep(i, n) {
rep(f, 3) {
if(!dp[i][f]) continue;
int nf = f + (a[i] == 0 ? 1 : -1);
if(nf >= 0 and nf < 3) {
dp[i + 1][nf] = 1;
}
if(i - 1 >= 0 and a[i - 1] == a[i]) {
dp[i + 1][f] = 1;
}
}
}
if(dp[n][1]) out("Yes");
else out("No");
}
signed main() {
int testcase = 1;
in(testcase);
while(testcase--) solve();
return 0;
}