結果
問題 | No.1124 Earthquake Safety |
ユーザー | satashun |
提出日時 | 2020-07-23 19:44:25 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 352 ms / 3,000 ms |
コード長 | 4,225 bytes |
コンパイル時間 | 2,309 ms |
コンパイル使用メモリ | 211,012 KB |
実行使用メモリ | 106,316 KB |
最終ジャッジ日時 | 2024-06-23 18:23:14 |
合計ジャッジ時間 | 17,920 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 8 ms
6,940 KB |
testcase_08 | AC | 90 ms
15,872 KB |
testcase_09 | AC | 319 ms
40,940 KB |
testcase_10 | AC | 241 ms
106,316 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,944 KB |
testcase_14 | AC | 339 ms
41,120 KB |
testcase_15 | AC | 352 ms
41,088 KB |
testcase_16 | AC | 345 ms
41,088 KB |
testcase_17 | AC | 347 ms
41,004 KB |
testcase_18 | AC | 335 ms
41,088 KB |
testcase_19 | AC | 342 ms
41,032 KB |
testcase_20 | AC | 346 ms
41,088 KB |
testcase_21 | AC | 335 ms
41,008 KB |
testcase_22 | AC | 348 ms
41,088 KB |
testcase_23 | AC | 329 ms
40,832 KB |
testcase_24 | AC | 329 ms
40,960 KB |
testcase_25 | AC | 329 ms
41,216 KB |
testcase_26 | AC | 330 ms
41,304 KB |
testcase_27 | AC | 320 ms
44,604 KB |
testcase_28 | AC | 319 ms
44,708 KB |
testcase_29 | AC | 331 ms
56,448 KB |
testcase_30 | AC | 329 ms
56,384 KB |
testcase_31 | AC | 348 ms
81,236 KB |
testcase_32 | AC | 344 ms
76,624 KB |
testcase_33 | AC | 346 ms
74,624 KB |
testcase_34 | AC | 345 ms
80,092 KB |
testcase_35 | AC | 313 ms
40,760 KB |
testcase_36 | AC | 285 ms
40,704 KB |
testcase_37 | AC | 293 ms
41,968 KB |
testcase_38 | AC | 286 ms
41,728 KB |
testcase_39 | AC | 282 ms
41,216 KB |
testcase_40 | AC | 293 ms
42,112 KB |
testcase_41 | AC | 283 ms
41,692 KB |
testcase_42 | AC | 280 ms
42,112 KB |
testcase_43 | AC | 283 ms
42,356 KB |
testcase_44 | AC | 271 ms
42,368 KB |
testcase_45 | AC | 270 ms
41,956 KB |
testcase_46 | AC | 272 ms
42,240 KB |
testcase_47 | AC | 270 ms
41,984 KB |
testcase_48 | AC | 272 ms
41,900 KB |
testcase_49 | AC | 278 ms
41,952 KB |
testcase_50 | AC | 2 ms
5,376 KB |
testcase_51 | AC | 2 ms
5,376 KB |
testcase_52 | AC | 2 ms
5,376 KB |
testcase_53 | AC | 2 ms
5,376 KB |
testcase_54 | AC | 1 ms
5,376 KB |
testcase_55 | AC | 2 ms
5,376 KB |
testcase_56 | AC | 2 ms
5,376 KB |
testcase_57 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<int, int>; template <class T> using V = vector<T>; template <class T> using VV = V<V<T>>; #define pb push_back #define eb emplace_back #define mp make_pair #define fi first #define se second #define rep(i, n) rep2(i, 0, n) #define rep2(i, m, n) for (int i = m; i < (n); i++) #define per(i, b) per2(i, 0, b) #define per2(i, a, b) for (int i = int(b) - 1; i >= int(a); i--) #define ALL(c) (c).begin(), (c).end() constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } template <class T, class U> void chmin(T& t, const U& u) { if (t > u) t = u; } template <class T, class U> void chmax(T& t, const U& u) { if (t < u) t = u; } template <class T, class U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << "(" << p.first << "," << p.second << ")"; return os; } template <class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; rep(i, v.size()) { if (i) os << ","; os << v[i]; } os << "}"; return os; } #ifdef LOCAL void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << H; debug_out(T...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif template <unsigned int MOD> struct ModInt { using uint = unsigned int; using ull = unsigned long long; using M = ModInt; uint v; ModInt(ll _v = 0) { set_norm(_v % MOD + MOD); } M& set_norm(uint _v) { //[0, MOD * 2)->[0, MOD) v = (_v < MOD) ? _v : _v - MOD; return *this; } explicit operator bool() const { return v != 0; } M operator+(const M& a) const { return M().set_norm(v + a.v); } M operator-(const M& a) const { return M().set_norm(v + MOD - a.v); } M operator*(const M& a) const { return M().set_norm(ull(v) * a.v % MOD); } M operator/(const M& a) const { return *this * a.inv(); } M& operator+=(const M& a) { return *this = *this + a; } M& operator-=(const M& a) { return *this = *this - a; } M& operator*=(const M& a) { return *this = *this * a; } M& operator/=(const M& a) { return *this = *this / a; } M operator-() const { return M() - *this; } M& operator++(int) { return *this = *this + 1; } M& operator--(int) { return *this = *this - 1; } M pow(ll n) const { if (n < 0) return inv().pow(-n); M x = *this, res = 1; while (n) { if (n & 1) res *= x; x *= x; n >>= 1; } return res; } M inv() const { ll a = v, b = MOD, p = 1, q = 0, t; while (b != 0) { t = a / b; swap(a -= t * b, b); swap(p -= t * q, q); } return M(p); } bool operator==(const M& a) const { return v == a.v; } bool operator!=(const M& a) const { return v != a.v; } friend ostream& operator<<(ostream& os, const M& a) { return os << a.v; } static int get_mod() { return MOD; } }; using Mint = ModInt<TEN(9) + 7>; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int N; cin >> N; VV<int> g(N); rep(i, N - 1) { int a, b; cin >> a >> b; --a, --b; g[a].pb(b); g[b].pb(a); } VV<Mint> dp(N, V<Mint>(8)); auto dfs = [&](auto self, int v, int p) -> void { V<Mint> cur(8); rep(i, 8) { cur[i] = 1; } for (int to : g[v]) { if (to != p) { self(self, to, v); V<Mint> nx(8); rep(bt, 8) { rep(ch, 8) { if (!(bt & ch)) nx[bt | ch] += cur[bt] * dp[to][ch] * ((ch == 7 || ch == 0) ? 2 : 1); } } cur = nx; } } dp[v] = cur; debug(v, dp[v]); }; dfs(dfs, 0, -1); cout << dp[0][7] << endl; return 0; }