結果
問題 | No.1293 2種類の道路 |
ユーザー | momohara |
提出日時 | 2020-11-27 14:23:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,658 bytes |
コンパイル時間 | 2,602 ms |
コンパイル使用メモリ | 215,636 KB |
実行使用メモリ | 11,500 KB |
最終ジャッジ日時 | 2024-07-23 21:36:11 |
合計ジャッジ時間 | 4,618 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | AC | 32 ms
9,336 KB |
testcase_15 | AC | 32 ms
9,332 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | AC | 35 ms
10,736 KB |
testcase_20 | AC | 34 ms
10,736 KB |
testcase_21 | AC | 29 ms
6,948 KB |
testcase_22 | AC | 29 ms
6,940 KB |
testcase_23 | AC | 29 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; /* #include <atcoder/all> using namespace atcoder; */ #define all(hoge) (hoge).begin(), (hoge).end() #define en '\n' using ll = long long; using ull = unsigned long long; #define rep(i, m, n) for(ll i = (ll)(m); i < (ll)(n); ++i) #define rep2(i, m, n) for(ll i = (ll)(n)-1; i >= (ll)(m); --i) #define REP(i, n) rep(i, 0, n) #define REP2(i, n) rep2(i, 0, n) template <class T> using vec = vector<T>; template <class T> using vvec = vector<vec<T>>; typedef pair<ll, ll> P; using tp = tuple<ll, ll, ll>; constexpr long long INF = 1LL << 60; constexpr int INF_INT = 1 << 25; constexpr long long MOD = (ll)1e9 + 7; //constexpr long long MOD = 998244353LL; using ld = long double; static const ld pi = 3.141592653589793L; using Array = vector<ll>; using Matrix = vector<Array>; /* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") */ template <class T> inline bool chmin(T &a, T b) { if(a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if(a < b) { a = b; return true; } return false; } //グラフ関連 struct Edge { ll to, cap, rev; Edge(ll _to, ll _cap, ll _rev) { to = _to; cap = _cap; rev = _rev; } }; typedef vector<Edge> Edges; typedef vector<Edges> Graph; void add_edge(Graph &G, ll from, ll to, ll cap, bool revFlag, ll revCap) { G[from].push_back(Edge(to, cap, (ll)G[to].size())); if(revFlag) G[to].push_back(Edge(from, revCap, (ll)G[from].size() - 1)); } class UnionFind { vector<int> data; vector<pair<int, int>> history; int num; public: UnionFind(int size) : data(size, -1), num(size) {} bool unionSet(int x, int y) { x = root(x); y = root(y); if(x != y) { history.push_back({x, data[x]}); history.push_back({y, data[y]}); if(data[y] < data[x]) swap(x, y); data[x] += data[y]; data[y] = x; num--; } return x != y; } bool findSet(int x, int y) { return root(x) == root(y); } int root(int x) { return data[x] < 0 ? x : data[x] = root(data[x]); } int size(int x) { return -data[root(x)]; } int numSet() { return num; } void snapshot() { history.clear(); } void undo() { data[history.back().first] = history.back().second; history.pop_back(); data[history.back().first] = history.back().second; history.pop_back(); } void rollback() { while(history.size()) undo(); } }; void solve() { ll n; cin >> n; ll d, w; cin >> d >> w; UnionFind X(2 * n); REP(i, d) { ll a, b; cin >> a >> b; a--; b--; X.unionSet(a, b); } REP(i, w) { ll a, b; cin >> a >> b; a--; b--; X.unionSet(a + n, b + n); } X.snapshot(); vvec<ll> xs(n); REP(i, n) { int r = X.root(i); xs[r].push_back(i); } ll ans = 0; REP(i, n) { if(xs[i].size() == 0) continue; set<ll> st; for(auto x : xs[i]) { X.unionSet(x, x + n); } ans += xs[i].size() * (X.size(i) - 1 - xs[i].size()); X.rollback(); } cout << ans << en; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); /* ll t; cin >> t; REP(i, t - 1) { solve(); }*/ solve(); return 0; }