結果
問題 | No.2316 Freight Train |
ユーザー | moharan627 |
提出日時 | 2023-05-26 21:40:57 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 439 ms / 2,000 ms |
コード長 | 5,321 bytes |
コンパイル時間 | 5,235 ms |
コンパイル使用メモリ | 311,632 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-07 06:06:32 |
合計ジャッジ時間 | 16,588 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 420 ms
5,376 KB |
testcase_04 | AC | 232 ms
5,376 KB |
testcase_05 | AC | 167 ms
5,376 KB |
testcase_06 | AC | 57 ms
5,376 KB |
testcase_07 | AC | 371 ms
5,376 KB |
testcase_08 | AC | 240 ms
5,376 KB |
testcase_09 | AC | 320 ms
5,376 KB |
testcase_10 | AC | 341 ms
5,376 KB |
testcase_11 | AC | 289 ms
5,376 KB |
testcase_12 | AC | 378 ms
5,376 KB |
testcase_13 | AC | 434 ms
5,376 KB |
testcase_14 | AC | 439 ms
5,376 KB |
testcase_15 | AC | 423 ms
5,376 KB |
testcase_16 | AC | 432 ms
5,376 KB |
testcase_17 | AC | 424 ms
5,376 KB |
testcase_18 | AC | 435 ms
5,376 KB |
testcase_19 | AC | 425 ms
5,376 KB |
testcase_20 | AC | 430 ms
5,376 KB |
testcase_21 | AC | 435 ms
5,376 KB |
testcase_22 | AC | 422 ms
5,376 KB |
testcase_23 | AC | 397 ms
5,376 KB |
testcase_24 | AC | 425 ms
5,376 KB |
testcase_25 | AC | 401 ms
5,376 KB |
testcase_26 | AC | 389 ms
5,376 KB |
testcase_27 | AC | 309 ms
5,376 KB |
testcase_28 | AC | 1 ms
5,376 KB |
ソースコード
#if !__INCLUDE_LEVEL__ #include __FILE__ int main() { int N,Q;cin >> N >> Q; dsu uf(N); vector<int> P(N); rep(i,N)cin >> P[i]; rep(i,N){ if(P[i]==-1)continue; uf.merge(i,P[i]-1); } rep(q,Q){ int A,B;cin >> A >>B; A-=1; B-=1; if(uf.same(A,B))cout << "Yes" << "\n"; else cout << "No" <<"\n"; } } #else //tie(a, b, c) = t //repをllにしているので時間ギリギリならintに変換 #include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; #define rep(i, n) for(long long int i = 0; i < n; i++) #define rrep(i, n) for(long long int i = n-1; i >= 0; i--) #define range(i, m, n) for(long long int i = m; i < n; i++) #define fore(i,a) for(auto &i:a) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define Sum(v) accumulate(all(v),0LL) #define minv(v) *min_element(all(v)) #define maxv(v) *max_element(all(v)) typedef long long ll; typedef vector<ll> vl; typedef vector<vector<ll>> vvl; const ll INF = 1e16; const ll MOD1 = 1000000007; const ll MOD2 = 998244353; template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } ll SN(char s){return ll(s-'0');} ll SN(string s){return stoll(s);} int alpN(char s){return int(s-'a');} int AlpN(char s){return int(s-'A');} int Nalp(int n){return char(n+97);} int NAlp(int n){return char(n+65);} using mint = modint; using mint1 = modint1000000007; using mint2 = modint998244353; using pll = pair<long long, long long>; template <class T>ostream &operator<<(ostream &o,const vector<T>&v){for(int i=0;i<(int)v.size();i++)o<<(i>0?" ":"")<<v[i];return o;}//vector空白区切り出力 ostream& operator<<(ostream& os, const mint1& N) {return os << N.val();}//mint出力。デフォはmint1 ostream& operator<<(ostream& os, const mint2& N) {return os << N.val();} template<class T> bool contain(const std::string& s, const T& v) { return s.find(v) != std::string::npos; } ll max(int x,ll y){return max((ll)x,y);} ll max(ll x,int y){return max(x,(ll)y);} ll min(int x,ll y){return min((ll)x,y);} ll min(ll x,int y){return min(x,(ll)y);} template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge& operator=(const int& x) { to = x; return *this; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T> >; template <typename T> using WeightedGraph = vector<Edges<T> >; using UnWeightedGraph = vector<vector<int> >; template <typename T> using Matrix = vector<vector<T> >; //unorderd_mapの拡張…https://qiita.com/hamamu/items/4d081751b69aa3bb3557 template<class T> size_t HashCombine(const size_t seed,const T &v){ return seed^(std::hash<T>()(v)+0x9e3779b9+(seed<<6)+(seed>>2)); } /* pair用 */ template<class T,class S> struct std::hash<std::pair<T,S>>{ size_t operator()(const std::pair<T,S> &keyval) const noexcept { return HashCombine(std::hash<T>()(keyval.first), keyval.second); } }; /* vector用 */ template<class T> struct std::hash<std::vector<T>>{ size_t operator()(const std::vector<T> &keyval) const noexcept { size_t s=0; for (auto&& v: keyval) s=HashCombine(s,v); return s; } }; /* tuple用 */ template<int N> struct HashTupleCore{ template<class Tuple> size_t operator()(const Tuple &keyval) const noexcept{ size_t s=HashTupleCore<N-1>()(keyval); return HashCombine(s,std::get<N-1>(keyval)); } }; template <> struct HashTupleCore<0>{ template<class Tuple> size_t operator()(const Tuple &keyval) const noexcept{ return 0; } }; template<class... Args> struct std::hash<std::tuple<Args...>>{ size_t operator()(const tuple<Args...> &keyval) const noexcept { return HashTupleCore<tuple_size<tuple<Args...>>::value>()(keyval); } }; ll ceil(ll a, ll b){ return (a + b - 1) / b; } struct string_converter { char start = 0; char type(const char &c) const { return (islower(c) ? 'a' : isupper(c) ? 'A' : isdigit(c) ? '0' : 0); } int convert(const char &c) { if(!start) start = type(c); return c - start; } int convert(const char &c, const string &chars) { return chars.find(c); } template <typename T> auto convert(const T &v) { vector<decltype(convert(v[0]))> ret; ret.reserve(v.size()); for(auto &&e : v) ret.emplace_back(convert(e)); return ret; } template <typename T> auto convert(const T &v, const string &chars) { vector<decltype(convert(v[0], chars))> ret; ret.reserve(v.size()); for(auto &&e : v) ret.emplace_back(convert(e, chars)); return ret; } int operator()(const char &v, char s = 0) { start = s; return convert(v); } int operator()(const char &v, const string &chars) { return convert(v, chars); } template <typename T> auto operator()(const T &v, char s = 0) { start = s; return convert(v); } template <typename T> auto operator()(const T &v, const string &chars) { return convert(v, chars); } } toint; #endif