結果
問題 | No.2283 Prohibit Three Consecutive |
ユーザー | Forested |
提出日時 | 2023-04-28 21:29:29 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 13 ms / 2,000 ms |
コード長 | 3,944 bytes |
コンパイル時間 | 1,201 ms |
コンパイル使用メモリ | 131,384 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-17 20:29:52 |
合計ジャッジ時間 | 1,845 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 13 |
ソースコード
#ifndef LOCAL #define FAST_IO #endif // ============ #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <cmath> #include <iomanip> #include <iostream> #include <list> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> #define OVERRIDE(a, b, c, d, ...) d #define REP2(i, n) for (i32 i = 0; i < (i32)(n); ++i) #define REP3(i, m, n) for (i32 i = (i32)(m); i < (i32)(n); ++i) #define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__) #define PER(i, n) for (i32 i = (i32)(n) - 1; i >= 0; --i) #define ALL(x) begin(x), end(x) using namespace std; using u32 = unsigned int; using u64 = unsigned long long; using i32 = signed int; using i64 = signed long long; using f64 = double; using f80 = long double; template <typename T> using Vec = vector<T>; template <typename T> bool chmin(T &x, const T &y) { if (x > y) { x = y; return true; } return false; } template <typename T> bool chmax(T &x, const T &y) { if (x < y) { x = y; return true; } return false; } template <typename T> Vec<tuple<i32, i32, T>> runlength(const Vec<T> &a) { if (a.empty()) { return Vec<tuple<i32, i32, T>>(); } Vec<tuple<i32, i32, T>> ret; i32 prv = 0; REP(i, 1, a.size()) { if (a[i - 1] != a[i]) { ret.emplace_back(prv, i, a[i - 1]); prv = i; } } ret.emplace_back(prv, (i32)a.size(), a.back()); return ret; } #ifdef INT128 using u128 = __uint128_t; using i128 = __int128_t; istream &operator>>(istream &is, i128 &x) { i64 v; is >> v; x = v; return is; } ostream &operator<<(ostream &os, i128 x) { os << (i64)x; return os; } istream &operator>>(istream &is, u128 &x) { u64 v; is >> v; x = v; return is; } ostream &operator<<(ostream &os, u128 x) { os << (u64)x; return os; } #endif [[maybe_unused]] constexpr i32 INF = 1000000100; [[maybe_unused]] constexpr i64 INF64 = 3000000000000000100; struct SetUpIO { SetUpIO() { #ifdef FAST_IO ios::sync_with_stdio(false); cin.tie(nullptr); #endif cout << fixed << setprecision(15); } } set_up_io; // ============ #ifdef DEBUGF #else #define DBG(x) (void)0 #endif void solve() { i32 n; cin >> n; string s; cin >> s; REP(st, 4) { bool ok = true; if (s[0] == '0' && (st & 1) != 0) { ok = false; } if (s[0] == '1' && (st & 1) == 0) { ok = false; } if (s[1] == '0' && (st & 2) != 0) { ok = false; } if (s[1] == '1' && (st & 2) == 0) { ok = false; } if (!ok) { continue; } Vec<i32> dp(4, 0); dp[st] = 1; REP(i, 2, n) { Vec<i32> ndp(4, 0); REP(t, 4) { if (!dp[t]) { continue; } if (s[i] != '1' && t != 0) { ndp[t / 2] = 1; } if (s[i] != '0' && t != 3) { ndp[t / 2 + 2] = 1; } } dp = ndp; } REP(t, 4) { bool ok = true; if ((st & 1) == 0 && t == 0) { ok = false; } if ((st & 1) != 0 && t == 3) { ok = false; } if (st == 0 && t / 2 == 0) { ok = false; } if (st == 3 && t / 2 == 1) { ok = false; } if (ok && dp[t]) { cout << "Yes\n"; return; } } } cout << "No\n"; } int main() { i32 t; cin >> t; while (t--) { solve(); } }