제출 #584074

#제출 시각아이디문제언어결과실행 시간메모리
584074yanndev장난감 기차 (IOI17_train)C++17
0 / 100
6 ms1040 KiB
#include <bits/stdc++.h> using namespace std; const int MX = 5042; vector<int> graph[MX]; vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) { int n, m; n = (int)a.size(); m = (int)u.size(); for (int i = 0; i < n; i++) graph[i].clear(); vector<int> ans (n); bool isChain = true; for (int i = 0; i < m; i++) { graph[u[i]].push_back(v[i]); if (!(u[i] == v[i] || v[i] == u[i] + 1)) isChain = false; } if (isChain) { bool isOk = false; for (int i = n - 1; i >= 0; i--) { bool hasSelf = false; for (auto& x: graph[i]) if (x == i) hasSelf = true; if (hasSelf) { if (a[i]) { if (r[i]) isOk = true; } else { if (!r[i]) isOk = false; } } ans[i] = isOk; } return ans; } return ans; }
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