제출 #1179132

#제출 시각아이디문제언어결과실행 시간메모리
1179132stdfloat9월 (APIO24_september)C++20
100 / 100
167 ms11340 KiB
#include <bits/stdc++.h> #include "september.h" // #include "stub.cpp" using namespace std; int solve(int n, int M, vector<int> F, vector<vector<int>> S) { vector<int> E[n]; for (int i = 1; i < n; i++) E[F[i]].push_back(i); vector<int> ind(n); for (auto i : S) { for (int j = 0; j < n - 1; j++) ind[i[j]] = max(ind[i[j]], j); } vector<int> z(n); for (int i = 0; i < n; i++) { z[i] = ind[i]; for (auto j : E[i]) z[i] = max(z[i], ind[j]); } int cnt = 0, r = 0; for (int i = 0; i < n - 1; i++) { for (int j = 0; j < M; j++) r = max(r, z[S[j][i]]); cnt += (i == r); } return cnt; }
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