結果
問題 | No.2868 Another String of yuusaan |
ユーザー | nono00 |
提出日時 | 2024-08-30 22:56:28 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,300 bytes |
コンパイル時間 | 2,674 ms |
コンパイル使用メモリ | 244,088 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-08-30 22:56:32 |
合計ジャッジ時間 | 3,620 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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 | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | RE | - |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | RE | - |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 1 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; template <class T> using max_heap = priority_queue<T>; template <class T> using min_heap = priority_queue<T, vector<T>, greater<T>>; #define rep(i, l, r) for (ll i = (l); i < (r); i++) #define rrep(i, r, l) for (ll i = (r); i-- > (l);) #define all(x) begin(x), end(x) template <class T> bool chmin(T& lhs, T rhs) { return lhs > rhs ? (lhs = rhs, true) : false; } template <class T> bool chmax(T& lhs, T rhs) { return lhs < rhs ? (lhs = rhs, true) : false; } struct IOIO { IOIO() { cin.tie(0)->sync_with_stdio(0); } } ioio; template <class S, class T> ostream& operator<<(ostream& os, const pair<S, T>& p) { os << '(' << p.first << ", " << p.second << ')'; return os; } template <class T> ostream& operator<<(ostream& os, const vector<T>& vs) { os << '{'; rep(i, 0, (int)vs.size()) os << vs[i] << (i + 1 == (int)vs.size() ? "" : ", "); os << '}'; return os; } template <class T> ostream& operator<<(ostream& os, const set<T>& vs) { os << '{'; for (auto it = vs.begin(); it != vs.end(); it++) { if (it != vs.begin()) { os << ", "; } os << *it; } os << '}'; return os; } template <class T, class U> ostream& operator<<(ostream& os, const map<T, U>& vs) { os << '{'; for (auto it = vs.begin(); it != vs.end(); it++) { if (it != vs.begin()) { os << ", "; } os << *it; } os << '}'; return os; } #ifdef DEBUG void dump_func() { cerr << endl; } template <class Head, class... Tail> void dump_func(Head&& head, Tail&&... tail) { cerr << head; if (sizeof...(Tail) > 0) { cerr << ", "; } dump_func(std::move(tail)...); } #define dump(...) cerr << "[" + string(#__VA_ARGS__) + "] ", dump_func(__VA_ARGS__) #else #define dump(...) static_cast<int>(0) #endif using i128 = __int128_t; i128 memo[60]; i128 inf = 1e20; i128 yuusaan_length(ll i) { if (i >= 60) return inf; if (memo[i] != 0) return memo[i]; if (i == 0) return memo[i] = 1; if (i == 1) return memo[i] = 7; if (yuusaan_length(i - 1) == inf) return memo[i] = inf; memo[i] = 4 * yuusaan_length(i - 1) + 3; chmin(memo[i], inf); return memo[i]; } int main() { ll n, k; cin >> n >> k; k--; auto dfs = [&](auto&& self, ll n, i128 k) -> char { if (k < n) return 'y'; ll ok = n; ll ng = 0; while (ok - ng > 1) { ll key = (ok + ng) / 2; if (k < (i128)n - key + yuusaan_length(key)) ok = key; else ng = key; } if (ok == n) { k--; if (k < yuusaan_length(n - 1)) return self(self, n - 1, k); k -= yuusaan_length(n - 1); if (k < yuusaan_length(n - 1)) return self(self, n - 1, k); k -= yuusaan_length(n - 1); if (k == 0) return 's'; k--; if (k < yuusaan_length(n - 1)) return self(self, n - 1, k); k -= yuusaan_length(n - 1); if (k < yuusaan_length(n - 1)) return self(self, n - 1, k); k -= yuusaan_length(n - 1); return 'n'; } else { return self(self, ok, k - (n - ok)); } }; cout << dfs(dfs, n, k) << '\n'; }