結果
問題 | No.2360 Path to Integer |
ユーザー | ___Johniel |
提出日時 | 2023-08-04 15:39:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 81 ms / 2,500 ms |
コード長 | 3,400 bytes |
コンパイル時間 | 2,363 ms |
コンパイル使用メモリ | 216,132 KB |
実行使用メモリ | 22,016 KB |
最終ジャッジ日時 | 2024-10-14 12:48:53 |
合計ジャッジ時間 | 4,645 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 1 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 8 ms
5,248 KB |
testcase_09 | AC | 75 ms
11,008 KB |
testcase_10 | AC | 57 ms
11,452 KB |
testcase_11 | AC | 58 ms
11,328 KB |
testcase_12 | AC | 50 ms
11,008 KB |
testcase_13 | AC | 71 ms
11,008 KB |
testcase_14 | AC | 81 ms
19,968 KB |
testcase_15 | AC | 75 ms
11,008 KB |
testcase_16 | AC | 75 ms
22,016 KB |
ソースコード
// github.com/Johniel/contests // yukicoder/2360/main.cpp #include <bits/stdc++.h> #define each(i, c) for (auto& i : c) #define unless(cond) if (!(cond)) // #define endl "\n" using namespace std; template<typename P, typename Q> ostream& operator << (ostream& os, pair<P, Q> p) { os << "(" << p.first << "," << p.second << ")"; return os; } template<typename P, typename Q> istream& operator >> (istream& is, pair<P, Q>& p) { is >> p.first >> p.second; return is; } template<typename T> ostream& operator << (ostream& os, vector<T> v) { os << "("; for (auto& i: v) os << i << ","; os << ")"; return os; } template<typename T> istream& operator >> (istream& is, vector<T>& v) { for (auto& i: v) is >> i; return is; } template<typename T> ostream& operator << (ostream& os, set<T> s) { os << "#{"; for (auto& i: s) os << i << ","; os << "}"; return os; } template<typename K, typename V> ostream& operator << (ostream& os, map<K, V> m) { os << "{"; for (auto& i: m) os << i << ","; os << "}"; return os; } template<typename E, size_t N> istream& operator >> (istream& is, array<E, N>& a) { for (auto& i: a) is >> i; return is; } template<typename E, size_t N> ostream& operator << (ostream& os, array<E, N>& a) { os << "[" << N << "]{"; for (auto& i: a) os << i << ","; os << "}"; return os; } template<typename T> inline T setmax(T& a, T b) { return a = std::max(a, b); } template<typename T> inline T setmin(T& a, T b) { return a = std::min(a, b); } __attribute__((constructor)) static void ___initio(void) { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.setf(ios_base::fixed); cout.precision(15); return ; } using lli = long long int; using ull = unsigned long long; using str = string; template<typename T> using vec = vector<T>; constexpr array<int, 8> di({0, 1, -1, 0, 1, -1, 1, -1}); constexpr array<int, 8> dj({1, 0, 0, -1, 1, -1, -1, 1}); constexpr lli mod = 998244353; vec<lli> p10; vec<lli> a; const int N = 1e5 + 2; vec<vec<int>> g; vec<pair<int, lli>> v; int n; pair<int, lli> // child, sum rec(int curr, int prev) { const lli w = p10[to_string(a[curr]).size()]; lli z = a[curr]; int c = 1; each (next, g[curr]) { if (next == prev) continue; pair<int, lli> p = rec(next, curr); c += p.first; lli x = p.first * a[curr] % mod; lli y = p.second * w % mod; (z += x + y) %= mod; } return v[curr] = make_pair(c, z); } lli fn(int curr, int prev, lli p) { lli q = p; const lli w = p10[to_string(a[curr]).size()]; p = (p * w % mod) + ((n - v[curr].first) * (a[curr] % mod) % mod); p %= mod; lli z = p + v[curr].second; each (next, g[curr]) { if (next == prev) continue; lli whole = (p + v[curr].second) % mod; lli x = v[next].first * a[curr] % mod; lli y = v[next].second * w % mod; lli child = (x + y) % mod; lli np = (whole - child + mod) % mod; z += fn(next, curr, np); } return z; } int main(int argc, char *argv[]) { p10.resize(100); p10[0] = 1; for (int i = 1; i < p10.size(); ++i) { p10[i] = p10[i - 1] * 10 % mod; } while (cin >> n) { v.resize(n); g.clear(); g.resize(n, vec<int>()); a.resize(n); cin >> a; for (int i = 0; i < n - 1; ++i) { int x, y; cin >> x >> y; --x; --y; g[x].push_back(y); g[y].push_back(x); } rec(0, 0); lli w = fn(0, 0, 0); cout << w%mod << endl; } return 0; }