結果

問題 No.1983 [Cherry 4th Tune C] 南の島のマーメイド
ユーザー tatananonanotatananonano
提出日時 2023-03-29 15:58:33
言語 C++23
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 407 ms / 4,000 ms
コード長 8,518 bytes
コンパイル時間 6,872 ms
コンパイル使用メモリ 273,856 KB
実行使用メモリ 55,008 KB
最終ジャッジ日時 2023-10-21 07:11:27
合計ジャッジ時間 20,224 ms
ジャッジサーバーID
(参考情報)
judge12 / judge13
このコードへのチャレンジ
(要ログイン)

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
4,348 KB
testcase_01 AC 2 ms
4,348 KB
testcase_02 AC 2 ms
4,348 KB
testcase_03 AC 1 ms
4,348 KB
testcase_04 AC 2 ms
4,348 KB
testcase_05 AC 2 ms
4,348 KB
testcase_06 AC 1 ms
4,348 KB
testcase_07 AC 2 ms
4,348 KB
testcase_08 AC 10 ms
4,348 KB
testcase_09 AC 15 ms
4,348 KB
testcase_10 AC 12 ms
5,052 KB
testcase_11 AC 16 ms
4,896 KB
testcase_12 AC 11 ms
4,348 KB
testcase_13 AC 245 ms
15,192 KB
testcase_14 AC 280 ms
18,936 KB
testcase_15 AC 277 ms
19,544 KB
testcase_16 AC 167 ms
14,076 KB
testcase_17 AC 270 ms
20,588 KB
testcase_18 AC 210 ms
19,664 KB
testcase_19 AC 228 ms
26,324 KB
testcase_20 AC 229 ms
18,480 KB
testcase_21 AC 248 ms
21,372 KB
testcase_22 AC 262 ms
26,024 KB
testcase_23 AC 405 ms
30,020 KB
testcase_24 AC 395 ms
29,992 KB
testcase_25 AC 377 ms
30,068 KB
testcase_26 AC 392 ms
30,020 KB
testcase_27 AC 382 ms
30,012 KB
testcase_28 AC 407 ms
29,992 KB
testcase_29 AC 384 ms
30,056 KB
testcase_30 AC 398 ms
30,000 KB
testcase_31 AC 386 ms
29,996 KB
testcase_32 AC 384 ms
29,992 KB
testcase_33 AC 2 ms
4,348 KB
testcase_34 AC 272 ms
13,540 KB
testcase_35 AC 330 ms
47,860 KB
testcase_36 AC 318 ms
19,876 KB
testcase_37 AC 2 ms
4,348 KB
testcase_38 AC 244 ms
4,348 KB
testcase_39 AC 391 ms
55,008 KB
testcase_40 AC 319 ms
24,916 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <vector>
#include <algorithm>
#include <cmath>
#include <queue>
#include <deque>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <set>
#include <map>
#include <ctime>
#include <stack>
#include <functional>
#include <cstdio>
#include <string>
#include <iostream>
#include <limits>
#include <stdexcept>
#include <numeric>
#include <fstream>
#include <chrono>
#include <utility>
#include <cassert>
#include <random>
#include <time.h>
#include <bitset>
#include <sys/time.h>
using namespace std;
#define overload4(_1, _2, _3, _4, name, ...) name
#define rep0(a) for (ll _ = 0; _ < ll(a); ++_)
#define rep1(i, n) for (ll i = 0; i < ll(n); ++i)
#define rep2(i, s, n) for (ll i = ll(s); i < ll(n); ++i)
#define rep3(i, s, n, d) for(ll i = ll(s); i < ll(n); i+=d)
#define rep(...) overload4(__VA_ARGS__,rep3,rep2,rep1,rep0)(__VA_ARGS__)
#define rrep0(a) for (ll _ = (a)-1; _ >= ll(0); -- _)
#define rrep1(i, n) for (ll i = ll(n)-1; i >= 0; i--)
#define rrep2(i, n, t) for (ll i = ll(n)-1; i >= (ll)t; i--)
#define rrep3(i, n, t, d) for (ll i = ll(n)-1; i >= (ll)t; i-=d)
#define drep(...) overload4(__VA_ARGS__,rrep3,rrep2,rrep1,rrep0)(__VA_ARGS__)
typedef long long ll;
typedef unsigned long long ull;
typedef long double LD;
typedef double D;
typedef pair<ll,ll> P;
typedef map<ll,ll> M;
// /*
#include <atcoder/all>
using namespace atcoder;
//using namespace internal;
using mint =modint998244353;
//using mint =modint1000000007;
//using mint=static_modint<4649>;
#define ip(x) atcoder::internal::is_prime_constexpr(x)
istream &operator>>(istream &is, mint &a) { int v; cin >> v; a = v; return is; }
ostream &operator<<(ostream &os, const mint &a) { return os << a.val(); }
auto v_pow(ll n,ll base){vector<mint> v(n,1);rep(i,n-1){v[i+1]*=base*v[i];}return v;}
// */
template<typename T> istream &operator>>(istream &is, vector<T> &v) { for (auto &e : v) is >> e; return is; }
template<typename T> ostream &operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; }
template<class S, class T>
istream &operator>>(istream &is, pair<S, T> &p) { return is >> p.first >> p.second; }
template<class S, class T>
ostream &operator<<(ostream &os, const pair<S, T> &p) { return os << '{' << p.first << ", " << p.second << '}'; }
template<class S, class T, class U>
istream &operator>>(istream &is, tuple<S, T, U> &t) { return is >> get<0>(t) >> get<1>(t) >> get<2>(t); }
template<class S, class T, class U>
ostream &operator<<(ostream &os, const tuple<S, T, U> &t) {return os << '{' << get<0>(t) << ", " << get<1>(t) << ", " << get<2>(t) << '}';}
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define Game(n) cout << ((n) ? "First" : "Second"  ) << endl
template <typename F> ll binary_search(F check,ll ok,ll ng,bool border= true) {
/*binary_search(bool_func,okな値,ngな値)*///しっかり区間内に...
if(border) assert(check(ok));
while(abs(ok-ng)>1){
        auto x=(ng+ok)/2;
        tie(ok,ng)=(check(x)?make_pair(x, ng):make_pair(ok, x));
    }
    return ok;
    }
template <typename F> double binary_search_real(F check,double ok,double ng,ll iter = 150) {
    rep(iter) {
        double x=(ok+ng)/2;
        tie(ok,ng)=(check(x)?make_pair(x,ng):make_pair(ok,x));
    }
    return (ok+ng)/2;
}
void tatananonano() {
    ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    cout<< fixed << setprecision(10);
}
#define LL(...) ll __VA_ARGS__; IN(__VA_ARGS__)
#define ULL(...) ull __VA_ARGS__; IN(__VA_ARGS__)
#define INT(...) int __VA_ARGS__; IN(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; IN(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;IN(__VA_ARGS__)
#define LDL(...) LD __VA_ARGS__;IN(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;IN(__VA_ARGS__)
#define vv(type, name, h, ...) \
vector<vector<type>> name(h, vector<type>(__VA_ARGS__))
#define vvv(type, name, h, w, ...)   \
vector<vector<vector<type>>> name( \
  h, vector<vector<type>>(w, vector<type>(__VA_ARGS__)))
#define vvvv(type, name, a, b, c, ...)       \
  vector<vector<vector<vector<type>>>> name( \
      a, vector<vector<vector<type>>>(       \
        b, vector<vector<type>>(c, vector<type>(__VA_ARGS__))))
//#define MINT(...) mint __VA_ARGS__;IN(__VA_ARGS__)
template <class T> void scan(T &a) { cin >> a; }
void IN() {}
template <class Head, class... Tail> void IN(Head &head, Tail &...tail) {scan(head);IN(tail...);}
#define overload2(_1, _2, _3,name, ...) name
#define out1(x) cout<<x<<'\n'
#define out2(x,y) cout<<x<<" "<<y<<'\n'
#define out3(x,y,z) cout<<x<<" "<<y<<" "<<z<<'\n'
#define out4(x,y,z,w) cout<<x<<" "<<y<<" "<<z<<" "<<w<<'\n'
#define out(...) overload4(__VA_ARGS__,out4,out3,out2,out1)(__VA_ARGS__)
// #define each0(a) for(auto&&i:a)
#define each1(i,a) for(auto&&i:a)
#define each2(x,y,a) for(auto&&[x,y]:a)
#define each3(x,y,z,a) for(auto&&[x,y,z]:a)
#define each(...) overload4(__VA_ARGS__,each3,each2,each1,each0)(__VA_ARGS__)
#define print1(x) cout<<x<<'\n'
#define print2(x,n) cout<<fixed<<setprecision(n)<<x<<endl
#define print3(x,n,empty) cout<<fixed<<setprecision(n)<<x<<" "
#define print(...) overload2(__VA_ARGS__,print3,print2,print1)(__VA_ARGS__)
#define bool_print(x,y1,y2) cout<<(x?y1:y2)<<'\n';
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define MAX(a) *max_element(all(a));
#define MIN(a) *min_element(all(a));
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define len(x) ll(x.size())
#define uni(x) sort(all(x));x.erase(unique(all(x)),x.end())
#define TFU(s) transform(all(s),begin(s),::toupper);//大文字にする
#define TFL(s) transform(all(s),begin(s),::tolower);//小文字にする
#define replace(s,a,A) replace(s,'a','A')//str(s)のaをAにする
#define ROT(s,i) rotate(s.begin(),s.begin()+i,s.end())//sのi番目から後ろを前にする
#define PQ priority_queue
#define PQD PQ<P,vector<P>,greater<P>>//小さい順
#define PQS PQ<ll,vec,greater<ll>>
#define fi first
#define se second
#define bit(n,k) ((n>>k)&1LL)
#define popcount(n) __builtin_popcountll(n)
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;}
template<class T> bool in_rect(T i,T j,T h,T w) {return 0 <= i and i < h and 0 <= j and j < w;}
template<class T> bool is_in(T x,T a,T b){return (a<=x and x<b);}
typedef vector<ll> vec;
typedef vector<string> vs;
using mat = vector<vec>;
// template <typename T> using matrix = vector<vector<T>>;
const ll mod = 998244353;
//const ll mod = 1000000007;
const auto INF = (1LL<<(60));
template <typename T, typename U>
T ceil(T x, U y) {return (x > 0 ? (x + y - 1) / y : x / y);}
template <typename T, typename U>
T floor(T x, U y) {return (x > 0 ? x / y : (x - y + 1) / y);}
D getTime() {
    struct timeval s;
    gettimeofday(&s, NULL);
    return s.tv_sec + s.tv_usec * 1e-6;
}




template< typename G =mat >
struct LowLink {
    const G &g;
    vec used, ord, low;
    vec articulation;
    vector<P> bridge;
    LowLink(const G &g) : g(g) {}
    ll dfs(ll idx,ll k,ll par) {
        used[idx] = true;
        ord[idx] = k++;
        low[idx] = ord[idx];
        bool is_articulation = false;
        ll cnt = 0;
        for(auto &to : g[idx]) {
            if(!used[to]) {
                ++cnt;
                k = dfs(to, k, idx);
                low[idx] = min(low[idx], low[to]);
                is_articulation |= ~par && low[to] >= ord[idx];
                if(ord[idx] < low[to]) bridge.emplace_back(minmax(idx,to));
            } else if(to != par) {
                low[idx] = min(low[idx], ord[to]);
            }
        }
        is_articulation |= par == -1 && cnt > 1;
        if(is_articulation) articulation.push_back(idx);
        return k;
    }
    virtual void build() {
        used.assign(g.size(), 0);
        ord.assign(g.size(), 0);
        low.assign(g.size(), 0);
        int k = 0;
        for(int i = 0; i < g.size(); i++) {
            if(!used[i]) k = dfs(i, k, -1);
        }
    }
};


int main(){
  tatananonano();
  LL(n,m,q);
  mat g(n);
  rep(i,m){
    LL(u,v);
    u--;v--;
    g[u].pb(v);
    g[v].pb(u);
  }
  LowLink low(g);
  low.build();
  dsu d(n);
  for(auto p:low.bridge){
    d.merge(p.fi,p.se);
  }
  rep(q){
    LL(x,y);
    x--;y--;
    Yes(d.same(x,y));
  }
}
0