結果
問題 | No.2325 Skill Tree |
ユーザー | jupiro |
提出日時 | 2023-05-28 13:48:58 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 171 ms / 3,000 ms |
コード長 | 4,499 bytes |
コンパイル時間 | 2,383 ms |
コンパイル使用メモリ | 217,840 KB |
実行使用メモリ | 16,128 KB |
最終ジャッジ日時 | 2024-06-08 04:12:42 |
合計ジャッジ時間 | 9,870 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 39 ms
5,376 KB |
testcase_08 | AC | 42 ms
8,576 KB |
testcase_09 | AC | 52 ms
6,912 KB |
testcase_10 | AC | 63 ms
12,044 KB |
testcase_11 | AC | 58 ms
9,600 KB |
testcase_12 | AC | 130 ms
16,000 KB |
testcase_13 | AC | 118 ms
15,852 KB |
testcase_14 | AC | 121 ms
15,912 KB |
testcase_15 | AC | 119 ms
15,840 KB |
testcase_16 | AC | 122 ms
15,772 KB |
testcase_17 | AC | 116 ms
15,780 KB |
testcase_18 | AC | 118 ms
15,872 KB |
testcase_19 | AC | 118 ms
15,908 KB |
testcase_20 | AC | 114 ms
16,000 KB |
testcase_21 | AC | 117 ms
16,000 KB |
testcase_22 | AC | 124 ms
15,936 KB |
testcase_23 | AC | 125 ms
15,952 KB |
testcase_24 | AC | 124 ms
15,992 KB |
testcase_25 | AC | 122 ms
16,048 KB |
testcase_26 | AC | 122 ms
15,776 KB |
testcase_27 | AC | 162 ms
16,000 KB |
testcase_28 | AC | 166 ms
16,000 KB |
testcase_29 | AC | 161 ms
16,000 KB |
testcase_30 | AC | 162 ms
16,000 KB |
testcase_31 | AC | 161 ms
16,000 KB |
testcase_32 | AC | 141 ms
15,700 KB |
testcase_33 | AC | 151 ms
15,872 KB |
testcase_34 | AC | 150 ms
15,928 KB |
testcase_35 | AC | 167 ms
15,792 KB |
testcase_36 | AC | 158 ms
15,616 KB |
testcase_37 | AC | 171 ms
16,128 KB |
ソースコード
#include <bits/stdc++.h> using std::cin; using std::cout; using std::endl; using ll = long long; std::mt19937 rnd(std::chrono::steady_clock::now().time_since_epoch().count()); 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; } const int inf = (int)1e9 + 7; const long long INF = 1LL << 62; template <int mod> struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if ((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int)(1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; std::swap(a -= t * b, b); std::swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend std::ostream &operator<<(std::ostream &os, const ModInt &p) { return os << p.x; } friend std::istream &operator>>(std::istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt<mod>(t); return (is); } static int get_mod() { return mod; } }; constexpr int mod = (int)1e9 + 7; using mint = ModInt<mod>; ll power(ll x, ll n, ll p) { if (n == 0) { return 1 % p; } if (n % 2 == 0) { return power(x * x % p, n / 2, p); } else { return x * power(x, n - 1, p) % p; } } void solve() { int n; cin >> n; std::vector<int> L(n), A(n), deg(n); std::vector<std::vector<int>> g(n); for (int i = 1; i < n; i++) { cin >> L[i] >> A[i]; A[i] -= 1; g[A[i]].emplace_back(i); deg[i] += 1; } std::vector<int> min_level(n), visited(n); std::queue<int> q; q.emplace(0); min_level[0] = 0; std::map<int, int> mp; while (not q.empty()) { const int cur = q.front(); q.pop(); visited[cur] = true; chmax(min_level[cur], L[cur]); mp[min_level[cur]] += 1; for (const auto &nxt : g[cur]) { chmax(min_level[nxt], min_level[cur]); deg[nxt] -= 1; if (deg[nxt] == 0) q.emplace(nxt); } } for (auto itr = mp.begin(); itr != mp.end(); itr++) { if (itr != mp.begin()) { auto prev = std::prev(itr); itr->second += prev->second; } } int kkt; cin >> kkt; while (kkt--) { int t; cin >> t; if (t == 1) { int x; cin >> x; auto itr = mp.upper_bound(x); if (itr == mp.begin()) { cout << "0" << "\n"; } else { itr = std::prev(itr); cout << itr->second << "\n"; } } else { int y; cin >> y; y -= 1; if (not visited[y]) { cout << -1 << "\n"; } else { cout << min_level[y] << "\n"; } } } } int main() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); int I_love_KKT89 = 1; // cin >> I_love_KKT89; for (int Case = 1; Case <= I_love_KKT89; ++Case) { // cout << "Case #" << Case << ": "; solve(); } return 0; }