제출 #841437

#제출 시각아이디문제언어결과실행 시간메모리
841437model_code참나무 (IOI23_beechtree)C++17
0 / 100
70 ms26304 KiB
// incorrect/subtask-shallow-wa2.cpp #include "beechtree.h" #include <set> #include <algorithm> using namespace std; vector<int> beechtree(int N, int /*M*/, vector<int> P, vector<int> C) { vector<set<int>> ch_colors(N); vector<int> t(N, 1); for (int v = 1; v < N; ++v) { int u = P[v], c = C[v]; if (ch_colors[u].count(c)) { t[u] = false; if (u > 0) t[0] = false; } else ch_colors[u].insert(c); } vector<int> ord(N); for (int i = 0; i < N; ++i) ord[i] = i; sort(ord.begin(), ord.end(), [&](int u, int v) { if (ch_colors[u].size() != ch_colors[v].size()) return ch_colors[u].size() < ch_colors[v].size(); return u > v; }); for (int i = 0; i + 1 < N; ++i) { int u = ord[i], v = ord[i + 1]; for (int c : ch_colors[u]) { if (!ch_colors[v].count(c)) t[0] = false; } } return t; }
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