結果
問題 | No.2316 Freight Train |
ユーザー | 👑 rin204 |
提出日時 | 2023-05-27 00:02:38 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 77 ms / 2,000 ms |
コード長 | 9,091 bytes |
コンパイル時間 | 3,447 ms |
コンパイル使用メモリ | 254,188 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-07 09:37:35 |
合計ジャッジ時間 | 7,319 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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 77 ms
5,376 KB |
testcase_04 | AC | 38 ms
5,376 KB |
testcase_05 | AC | 29 ms
5,376 KB |
testcase_06 | AC | 9 ms
5,376 KB |
testcase_07 | AC | 51 ms
5,376 KB |
testcase_08 | AC | 50 ms
5,376 KB |
testcase_09 | AC | 51 ms
5,376 KB |
testcase_10 | AC | 50 ms
5,376 KB |
testcase_11 | AC | 54 ms
5,376 KB |
testcase_12 | AC | 64 ms
5,376 KB |
testcase_13 | AC | 77 ms
5,376 KB |
testcase_14 | AC | 74 ms
5,376 KB |
testcase_15 | AC | 77 ms
5,376 KB |
testcase_16 | AC | 75 ms
5,376 KB |
testcase_17 | AC | 73 ms
5,376 KB |
testcase_18 | AC | 76 ms
5,376 KB |
testcase_19 | AC | 74 ms
5,376 KB |
testcase_20 | AC | 74 ms
5,376 KB |
testcase_21 | AC | 74 ms
5,376 KB |
testcase_22 | AC | 75 ms
5,376 KB |
testcase_23 | AC | 60 ms
5,376 KB |
testcase_24 | AC | 68 ms
5,376 KB |
testcase_25 | AC | 61 ms
5,376 KB |
testcase_26 | AC | 60 ms
5,376 KB |
testcase_27 | AC | 34 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
ソースコード
// start A.cpp // #pragma GCC target("avx2") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; template <class T> using pq = priority_queue<T>; template <class T> using qp = priority_queue<T, vector<T>, greater<T>>; #define vec(T, A, ...) vector<T> A(__VA_ARGS__); #define vvec(T, A, h, ...) vector<vector<T>> A(h, vector<T>(__VA_ARGS__)); #define vvvec(T, A, h1, h2, ...) vector<vector<vector<T>>> A(h1, vector<vector<T>>(h2, vector<T>(__VA_ARGS__))); #ifndef RIN__LOCAL #define endl "\n" #endif #define spa ' ' #define len(A) A.size() #define all(A) begin(A), end(A) #define fori1(a) for (ll _ = 0; _ < (a); _++) #define fori2(i, a) for (ll i = 0; i < (a); i++) #define fori3(i, a, b) for (ll i = (a); i < (b); i++) #define fori4(i, a, b, c) for (ll i = (a); ((c) > 0 || i > (b)) && ((c) < 0 || i < (b)); i += (c)) #define overload4(a, b, c, d, e, ...) e #define fori(...) overload4(__VA_ARGS__, fori4, fori3, fori2, fori1)(__VA_ARGS__) vector<char> stoc(string &S) { int n = S.size(); vector<char> ret(n); for (int i = 0; i < n; i++) ret[i] = S[i]; return ret; } #define INT(...) \ int __VA_ARGS__; \ inp(__VA_ARGS__); #define LL(...) \ ll __VA_ARGS__; \ inp(__VA_ARGS__); #define STRING(...) \ string __VA_ARGS__; \ inp(__VA_ARGS__); #define CHAR(...) \ char __VA_ARGS__; \ inp(__VA_ARGS__); #define VEC(T, A, n) \ vector<T> A(n); \ inp(A); #define VVEC(T, A, n, m) \ vector<vector<T>> A(n, vector<T>(m)); \ inp(A); const ll MOD1 = 1000000007; const ll MOD9 = 998244353; template <class T> auto min(const T &a) { return *min_element(all(a)); } template <class T> auto max(const T &a) { return *max_element(all(a)); } template <class T, class S> auto clamp(T &a, const S &l, const S &r) { return (a > r ? r : a < l ? l : a); } template <class T, class S> inline bool chmax(T &a, const S &b) { return (a < b ? a = b, 1 : 0); } template <class T, class S> inline bool chmin(T &a, const S &b) { return (a > b ? a = b, 1 : 0); } template <class T, class S> inline bool chclamp(T &a, const S &l, const S &r) { auto b = clamp(a, l, r); return (a != b ? a = b, 1 : 0); } void FLUSH() { cout << flush; } void print() { cout << endl; } template <class Head, class... Tail> void print(Head &&head, Tail &&... tail) { cout << head; if (sizeof...(Tail)) cout << spa; print(forward<Tail>(tail)...); } template <typename T> void print(vector<T> &A) { int n = A.size(); for (int i = 0; i < n; i++) { cout << A[i]; if (i != n - 1) cout << ' '; } cout << endl; } template <typename T> void print(vector<vector<T>> &A) { for (auto &row : A) print(row); } template <typename T, typename S> void print(pair<T, S> &A) { cout << A.first << spa << A.second << endl; } template <typename T, typename S> void print(vector<pair<T, S>> &A) { for (auto &row : A) print(row); } template <typename T, typename S> void prisep(vector<T> &A, S sep) { int n = A.size(); for (int i = 0; i < n; i++) { cout << A[i]; if (i != n - 1) cout << sep; } cout << endl; } template <typename T, typename S> void priend(T A, S end) { cout << A << end; } template <typename T> void priend(T A) { priend(A, spa); } template <class... T> void inp(T &... a) { (cin >> ... >> a); } template <typename T> void inp(vector<T> &A) { for (auto &a : A) cin >> a; } template <typename T> void inp(vector<vector<T>> &A) { for (auto &row : A) inp(row); } template <typename T, typename S> void inp(pair<T, S> &A) { inp(A.first, A.second); } template <typename T, typename S> void inp(vector<pair<T, S>> &A) { for (auto &row : A) inp(row.first, row.second); } template <typename T> T sum(vector<T> &A) { T tot = 0; for (auto a : A) tot += a; return tot; } template <typename T> vector<T> compression(vector<T> X) { sort(all(X)); X.erase(unique(all(X)), X.end()); return X; } vector<vector<int>> read_edges(int n, int m, bool direct = false, int indexed = 1) { vector<vector<int>> edges(n, vector<int>()); for (int i = 0; i < m; i++) { INT(u, v); u -= indexed; v -= indexed; edges[u].push_back(v); if (!direct) edges[v].push_back(u); } return edges; } vector<vector<int>> read_tree(int n, int indexed = 1) { return read_edges(n, n - 1, false, indexed); } template <typename T> vector<vector<pair<int, T>>> read_wedges(int n, int m, bool direct = false, int indexed = 1) { vector<vector<pair<int, T>>> edges(n, vector<pair<int, T>>()); for (int i = 0; i < m; i++) { INT(u, v); T w; inp(w); u -= indexed; v -= indexed; edges[u].push_back({v, w}); if (!direct) edges[v].push_back({u, w}); } return edges; } template <typename T> vector<vector<pair<int, T>>> read_wtree(int n, int indexed = 1) { return read_wedges<T>(n, n - 1, false, indexed); } inline bool yes(bool f = true) { cout << (f ? "yes" : "no") << endl; return f; } inline bool Yes(bool f = true) { cout << (f ? "Yes" : "No") << endl; return f; } inline bool YES(bool f = true) { cout << (f ? "YES" : "NO") << endl; return f; } inline bool no(bool f = false) { cout << (!f ? "yes" : "no") << endl; return f; } inline bool No(bool f = false) { cout << (!f ? "Yes" : "No") << endl; return f; } inline bool NO(bool f = false) { cout << (!f ? "YES" : "NO") << endl; return f; } // start data_structure/UnionFind.hpp struct UnionFind { int n; vector<int> par; int group; UnionFind() = default; UnionFind(int n) : n(n) { par.assign(n, -1); group = n; } int find(int x) { if (par[x] < 0) return x; par[x] = find(par[x]); return par[x]; } bool unite(int x, int y) { x = find(x); y = find(y); if (x == y) return false; if (par[x] > par[y]) swap(x, y); group--; par[x] += par[y]; par[y] = x; return true; } bool same(int x, int y) { return find(x) == find(y); } int size(int x) { return -par[find(x)]; } vector<int> roots() { vector<int> ret; for (int i = 0; i < n; i++) { if (i == find(i)) ret.push_back(i); } return ret; } }; // end data_structure/UnionFind.hpp // restart A.cpp void solve() { INT(n, Q); VEC(int, P, n); UnionFind UF(n); fori(i, n) { if (P[i] != -1) UF.unite(i, P[i] - 1); } fori(Q) { INT(a, b); Yes(UF.same(a - 1, b - 1)); } } int main() { cin.tie(0)->sync_with_stdio(0); // cout << fixed << setprecision(12); int t; t = 1; // cin >> t; while (t--) solve(); return 0; } // end A.cpp