結果
| 問題 |
No.416 旅行会社
|
| ユーザー |
arktan763
|
| 提出日時 | 2020-02-06 17:53:06 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 510 ms / 4,000 ms |
| コード長 | 6,633 bytes |
| コンパイル時間 | 2,041 ms |
| コンパイル使用メモリ | 182,408 KB |
| 実行使用メモリ | 36,480 KB |
| 最終ジャッジ日時 | 2024-12-14 20:39:09 |
| 合計ジャッジ時間 | 7,885 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 21 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
#define FOR(i, a, b) for(int i = (a); i < (b); ++i)
#define FORR(i, a, b) for(int i = (a); i > (b); --i)
#define REP(i, n) for(int i = 0; i < (n); ++i)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOREACH(x, a) for(auto &(x) : (a))
#define VECCIN(x) \
for(auto &youso_ : (x)) cin >> youso_
#define bitcnt(x) __builtin_popcount(x)
#define lbit(x) __builtin_ffsll(x)
#define rbit(x) (64 - __builtin_clzll(x))
#define fi first
#define se second
#define All(a) (a).begin(), (a).end()
#define rAll(a) (a).rbegin(), (a).rend()
#define cinfast() cin.tie(0), ios::sync_with_stdio(false)
#define PERM(c) \
sort(All(c)); \
for(bool cp = true; cp; cp = next_permutation(All(c)))
#define COMB(n, k) \
for(ll bit = (1LL << k) - 1; bit < (1LL << n); bit = next_combination(bit))
#define PERM2(n, k) \
COMB(n, k) { \
vector<int> sel; \
for(int bitindex = 0; bitindex < n; bitindex++) \
if(bit >> bitindex & 1) sel.emplace_back(bitindex); \
PERM(sel) { Printv(sel); } \
}
#define MKORDER(n) \
vector<int> od(n); \
iota(All(od), 0LL);
template <typename T = long long> inline T IN() {
T x;
cin >> x;
return (x);
}
inline void CIN() {}
template <class Head, class... Tail>
inline void CIN(Head &&head, Tail &&... tail) {
cin >> head;
CIN(move(tail)...);
}
template <class Head> inline void COUT(Head &&head) { cout << (head) << "\n"; }
template <class Head, class... Tail>
inline void COUT(Head &&head, Tail &&... tail) {
cout << (head) << " ";
COUT(forward<Tail>(tail)...);
}
#define CCIN(...) \
char __VA_ARGS__; \
CIN(__VA_ARGS__)
#define DCIN(...) \
double __VA_ARGS__; \
CIN(__VA_ARGS__)
#define LCIN(...) \
long long __VA_ARGS__; \
CIN(__VA_ARGS__)
#define SCIN(...) \
string __VA_ARGS__; \
CIN(__VA_ARGS__)
#define Printv(v) \
{ \
REP(hoge, v.size()) \
cout << v[hoge] << (hoge == v.size() - 1 ? "" : " "); \
cout << "\n"; \
}
template <typename T = string> inline void eputs(T s) {
cout << s << "\n";
exit(0);
}
template <typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val) {
std::fill((T *)array, (T *)(array + N), val);
}
long long next_combination(long long sub) {
long long x = sub & -sub, y = sub + x;
return (((sub & ~y) / x) >> 1) | y;
}
// generic lambdas
template <typename F>
#if defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard)
[[nodiscard]]
#elif defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 4)
__attribute__((warn_unused_result))
#endif // defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard)
static inline constexpr decltype(auto)
fix(F &&f) noexcept {
return [f = std::forward<F>(f)](auto &&... args) {
return f(f, std::forward<decltype(args)>(args)...);
};
}
template <typename T> using PQG = priority_queue<T, vector<T>, greater<T>>;
template <typename T> using PQ = priority_queue<T>;
typedef long long ll;
typedef vector<ll> VL;
typedef vector<VL> VVL;
typedef pair<ll, ll> PL;
typedef vector<PL> VPL;
typedef vector<bool> VB;
typedef vector<double> VD;
typedef vector<string> VS;
const int INF = 1e9;
const int MOD = 1e9 + 7;
// const int MOD = 998244353;
const ll LINF = 1e18;
const ll dw[] = {1, 1, 0, -1, -1, -1, 0, 1};
const ll dh[] = {0, 1, 1, 1, 0, -1, -1, -1};
#define PI 3.141592653589793230
#define EPS 1e-7
// size用
struct UnionFind {
vector<ll> par;
vector<ll> sizes;
UnionFind(ll n) : par(n), sizes(n, 1) { REP(i, n) par[i] = i; }
ll find(ll x) {
if(x == par[x]) return x;
return par[x] = find(par[x]);
}
void unite(ll x, ll y) {
x = find(x);
y = find(y);
if(x == y) return;
if(x > y) swap(x, y);
par[y] = x;
sizes[x] += sizes[y];
sizes[y] = 0;
}
bool same(ll x, ll y) { return find(x) == find(y); }
ll size(ll x) { return sizes[find(x)]; }
};
signed main() {
LCIN(N, M, Q);
UnionFind uf(N);
VL A(M), B(M), C(Q), D(Q);
REP(i, M) cin >> A[i] >> B[i], A[i]--, B[i]--;
set<PL> memo;
REP(i, Q) {
cin >> C[i] >> D[i], C[i]--, D[i]--;
memo.emplace(C[i], D[i]);
}
REP(i, M) {
if(memo.count(PL(A[i], B[i]))) continue;
uf.unite(A[i], B[i]);
}
VVL vs(N);
REP(i, N) { vs[uf.find(i)].emplace_back(i); }
VL ans(N);
ll root = uf.find(0);
VL out(N);
out[root] = -1;
VVL g(N);
auto dfs = fix([&](auto f, ll now, ll par, ll val) -> void {
out[now] = val;
FOREACH(to, g[now]) {
if(to == par) continue;
f(f, to, now, val);
}
});
REPR(i, Q - 1) {
ll u = uf.find(C[i]), v = uf.find(D[i]);
if(u != v) {
if(u == root) {
dfs(v, u, i + 1);
} else if(v == root) {
dfs(u, v, i + 1);
} else {
g[u].emplace_back(v);
g[v].emplace_back(u);
}
uf.unite(C[i], D[i]);
}
}
REP(i, N) {
FOREACH(v, vs[i]) { ans[v] = out[i]; }
}
FOR(i, 1, N) { cout << ans[i] << "\n"; }
}
arktan763