結果
問題 |
No.2822 Lights Up! (Tree Edition)
|
ユーザー |
|
提出日時 | 2024-07-26 22:44:38 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,049 bytes |
コンパイル時間 | 2,268 ms |
コンパイル使用メモリ | 203,840 KB |
最終ジャッジ日時 | 2025-02-23 18:51:33 |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 70 WA * 72 |
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> pll; typedef pair<int, int> pii; typedef pair<double, double> pdd; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<double> vd; typedef vector<string> vs; typedef vector<vi> vvi; typedef vector<vvi> vvvi; typedef vector<vll> vvll; typedef vector<vvll> vvvll; typedef vector<pii> vpii; typedef vector<vpii> vvpii; typedef vector<pll> vpll; typedef vector<vpll> vvpll; typedef vector<pdd> vpdd; typedef vector<vd> vvd; #define yn(ans) printf("%s\n", (ans)?"Yes":"No"); #define YN(ans) printf("%s\n", (ans)?"YES":"NO"); template<class T> bool chmax(T &a, T b) { if (a >= b) return false; a = b; return true; } template<class T> bool chmin(T &a, T b) { if (a <= b) return false; a = b; return true; } #define FOR(i, s, e, t) for ((i) = (s); (i) < (e); (i) += (t)) #define REP(i, e) for (int i = 0; i < (e); ++i) #define REP1(i, s, e) for (int i = (s); i < (e); ++i) #define RREP(i, e) for (int i = (e); i >= 0; --i) #define RREP1(i, e, s) for (int i = (e); i >= (s); --i) #define all(v) v.begin(), v.end() #define pb push_back #define qb pop_back #define pf push_front #define qf pop_front #define maxe max_element #define mine min_element ll inf = 1e18; #define DEBUG printf("%d\n", __LINE__); fflush(stdout); template<class T> void print(vector<T> &v, bool withSize = false) { if (withSize) cout << v.size() << endl; REP(i, v.size()) cout << v[i] << " "; cout << endl; } mt19937_64 rng((unsigned int) chrono::steady_clock::now().time_since_epoch().count()); int __FAST_IO__ = []() { std::ios::sync_with_stdio(0); std::cin.tie(0); std::cout.tie(0); return 0; }(); class Union { public: Union(int _n): n(_n), tot(n), p(n, 0), c(n, 1) {REP(i, n) p[i] = i;} int find(int x) {return p[x] == x?x:(p[x] = find(p[x]));} bool merge(int x, int y) { int a = find(x), b = find(y); if (a == b) return false; int e = min(a, b), f = max(a, b); p[f] = p[e]; c[e] += c[f]; c[f] = 0; --tot; return true; } int ng() {return tot;} int count(int g) {return c[g];} private: int n, tot; vector<int> p, c; }; #define TESTS int t; cin >> t; while (t--) #define TEST int main() { TEST { int N; cin >> N; vvi g(N); REP1(i, 1, N) { int p; cin >> p; g[--p].pb(i); } string s; cin >> s; vi need(N, false); function<int(int, int)> dfs = [&](int u, int p) { int c = u == 0 ? 0 : s[u - 1] == '#'; for (auto v: g[u]) { if (v == p) continue; c ^= dfs(v, u); } return need[u] = c; }; dfs(0, -1); int K; cin >> K; Union U(N); REP(i, K) { int u, v; cin >> u >> v; --u, --v; U.merge(u, v); } vi cnt(N, 0); REP(i, N) if (need[i]) cnt[U.find(i)]++; //print(need), print(cnt); bool ok = true; REP(i, N) ok &= cnt[i] % 2 == 0; yn(ok); } return 0; }