제출 #997476

#제출 시각아이디문제언어결과실행 시간메모리
997476ALTAKEXE9월 (APIO24_september)C++17
0 / 100
2 ms3164 KiB
#include <bits/stdc++.h> #include <vector> using namespace std; vector<vector<int>> adj(100005); vector<bool> vis(100005, 0); vector<int> p(100005, 0); int c = -1; void dfs(int u) { if (vis[u]) return; vis[u] = true; c = max(c, p[u]); for (auto i : adj[u]) dfs(i); } int solve(int n, int m, vector<int> f, vector<vector<int>> s) { for (int i = 1; i < n; i++) adj[f[i]].push_back(i); for (int j = 0; j < m; j++) { for (int i = 0; i < n - 1; i++) p[s[j][i]] = max(p[s[j][i]], i); } int ans = 0; for (int i = 0; i < n - 1; i++) { for (int j = 0; j < m; j++) { if (i > c && j == 0) ans++; dfs(s[j][i]); } } c = -1; return ans; }
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