結果
問題 | No.416 旅行会社 |
ユーザー | hamray |
提出日時 | 2020-11-21 21:28:30 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 401 ms / 4,000 ms |
コード長 | 5,927 bytes |
コンパイル時間 | 1,671 ms |
コンパイル使用メモリ | 178,424 KB |
実行使用メモリ | 43,136 KB |
最終ジャッジ日時 | 2024-05-08 16:01:40 |
合計ジャッジ時間 | 6,931 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 127 ms
30,080 KB |
testcase_01 | AC | 7 ms
10,368 KB |
testcase_02 | AC | 6 ms
10,368 KB |
testcase_03 | AC | 7 ms
10,240 KB |
testcase_04 | AC | 7 ms
10,240 KB |
testcase_05 | AC | 8 ms
10,368 KB |
testcase_06 | AC | 6 ms
10,240 KB |
testcase_07 | AC | 7 ms
10,368 KB |
testcase_08 | AC | 10 ms
10,752 KB |
testcase_09 | AC | 24 ms
12,672 KB |
testcase_10 | AC | 156 ms
30,080 KB |
testcase_11 | AC | 158 ms
30,080 KB |
testcase_12 | AC | 167 ms
32,512 KB |
testcase_13 | AC | 128 ms
30,208 KB |
testcase_14 | AC | 401 ms
42,880 KB |
testcase_15 | AC | 395 ms
42,752 KB |
testcase_16 | AC | 396 ms
43,136 KB |
testcase_17 | AC | 387 ms
43,136 KB |
testcase_18 | AC | 391 ms
43,008 KB |
testcase_19 | AC | 285 ms
34,944 KB |
testcase_20 | AC | 284 ms
35,072 KB |
ソースコード
#include <bits/stdc++.h> //#include <atcoder/all> //using namespace atcoder; #pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops") const double pi = 3.141592653589793238462643383279; using namespace std; //typedef //------------------------------------------ typedef vector<int> VI; typedef vector<VI> VVI; typedef vector<string> VS; typedef pair<int, int> PII; typedef pair<long long, long long> PLL; typedef pair<int, PII> TIII; typedef long long LL; typedef unsigned long long ULL; typedef vector<LL> VLL; typedef vector<VLL> VVLL; //container util //------------------------------------------ #define ALL(a) (a).begin(), (a).endf() #define RALL(a) (a).rbegin(), (a).rend() #define PB push_back #define MP make_pair #define SZ(a) int((a).size()) #define SQ(a) ((a) * (a)) #define EACH(i, c) for (typeof((c).begin()) i = (c).begin(); i != (c).endf(); ++i) #define EXIST(s, e) ((s).find(e) != (s).endf()) #define SORT(c) sort((c).begin(), (c).endf()) //repetition //------------------------------------------ #define FOR(i, s, n) for (int i = s; i < (int)n; ++i) #define REP(i, n) FOR(i, 0, n) #define MOD 1000000007 #define rep(i, a, b) for (int i = a; i < (b); ++i) #define trav(a, x) for (auto &a : x) #define all(x) x.begin(), x.end() typedef long long ll; typedef pair<int, int> pii; typedef vector<int> vi; #define chmin(x, y) x = min(x, y) #define chmax(x, y) x = max(x, y) const double EPS = 1e-9, PI = acos(-1); //ここから編集 typedef string::const_iterator State; template< int mod > struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int) (1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while(b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while(n > 0) { if(n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const ModInt &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt< mod >(t); return (is); } static int get_mod() { return mod; } }; using modint = ModInt< 998244353 >; template< typename T > struct Combination { vector< T > _fact, _rfact, _inv; Combination(int sz) : _fact(sz + 1), _rfact(sz + 1), _inv(sz + 1) { _fact[0] = _rfact[sz] = _inv[0] = 1; for(int i = 1; i <= sz; i++) _fact[i] = _fact[i - 1] * i; _rfact[sz] /= _fact[sz]; for(int i = sz - 1; i >= 0; i--) _rfact[i] = _rfact[i + 1] * (i + 1); for(int i = 1; i <= sz; i++) _inv[i] = _rfact[i] * _fact[i - 1]; } inline T fact(int k) const { return _fact[k]; } inline T rfact(int k) const { return _rfact[k]; } inline T inv(int k) const { return _inv[k]; } T P(int n, int r) const { if(r < 0 || n < r) return 0; return fact(n) * rfact(n - r); } T C(int p, int q) const { if(q < 0 || p < q) return 0; return fact(p) * rfact(q) * rfact(p - q); } T H(int n, int r) const { if(n < 0 || r < 0) return (0); return r == 0 ? 1 : C(n + r - 1, r); } }; struct UnionFind{ vector<int> par; vector<int> siz; vector<int> tim; set<int> st[101010]; UnionFind(int sz_): par(sz_), siz(sz_), tim(sz_){ for(int i=0; i<sz_; ++i) { par[i] = i, siz[i] = 1, tim[i] = 0; st[i].insert(i); } } void init(int sz_){ par.resize(sz_); siz.resize(sz_); for(int i=0; i<sz_; ++i) par[i] = i, siz[i] = 1; } int root(int x){ if(x == par[x]) return x; return par[x] = root(par[x]); } bool merge(int x, int y, int t){ x = root(x), y = root(y); if(x == y) return false; if(root(0) == x){ for(auto e: st[y]){ tim[e] = t; } }else if(root(0) == y){ for(auto e: st[x]){ tim[e] = t; } } if(siz[x] < siz[y]) swap(x, y); for(auto e: st[y]){ st[x].insert(e); } siz[x] += siz[y]; par[y] = x; return true; } bool issame(int x, int y){ return root(x) == root(y); } int size(int x){ return siz[root(x)]; } }; vector<vector<int>> g(101010); int main() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(12); int N, M, Q; cin >> N >> M >> Q; vector<int> a(M), b(M); REP(i,M){ cin >> a[i] >> b[i]; a[i]--; b[i]--; g[a[i]].push_back(b[i]); g[b[i]].push_back(a[i]); } vector<int> c(Q), d(Q); REP(i,Q) { cin >> c[i] >> d[i]; c[i]--; d[i]--; } reverse(all(c)); reverse(all(d)); UnionFind uf(N); set<pair<int, int>> st; REP(i,Q) st.insert(make_pair(c[i], d[i])); REP(i,M){ if(st.find(make_pair(a[i], b[i])) == st.end()){ uf.merge(a[i], b[i], -1); } } REP(i,Q){ uf.merge(c[i], d[i], Q-i); } for(int i=1; i<N; i++){ cout << uf.tim[i] << '\n'; } return 0; }