제출 #519082

#제출 시각아이디문제언어결과실행 시간메모리
519082tabr게임 (IOI14_game)C++17
42 / 100
1086 ms1324 KiB
#include <bits/stdc++.h> using namespace std; #ifdef tabr #include "library/debug.cpp" #else #define debug(...) #endif struct dsu { vector<int> p; vector<int> sz; int n; dsu(int _n) : n(_n) { p = vector<int>(n); iota(p.begin(), p.end(), 0); sz = vector<int>(n, 1); } inline int get(int x) { if (p[x] == x) { return x; } else { return p[x] = get(p[x]); } } inline bool unite(int x, int y) { x = get(x); y = get(y); if (x == y) { return false; } p[x] = y; sz[y] += sz[x]; return true; } inline bool same(int x, int y) { return (get(x) == get(y)); } inline int size(int x) { return sz[get(x)]; } }; int n; bitset<1500> g[1500]; dsu uf(0); void initialize(int _n) { n = _n; uf = dsu(n); } int hasEdge(int u, int v) { assert(!uf.same(u, v)); vector<int> a, b; for (int i = 0; i < n; i++) { if (uf.same(i, u)) { a.emplace_back(i); } else if (uf.same(i, v)) { b.emplace_back(i); } } g[u][v] = g[v][u] = 1; bitset<1500> c; for (int i : b) { c[i] = 1; } for (int i : a) { if ((g[i] & c).count() != b.size()) { return 0; } } uf.unite(u, v); return 1; } #ifdef tabr int main() { ios::sync_with_stdio(false); cin.tie(0); return 0; } #endif
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