結果
問題 | No.2286 Join Hands |
ユーザー | siganai |
提出日時 | 2023-04-28 23:24:20 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,409 ms / 2,000 ms |
コード長 | 5,928 bytes |
コンパイル時間 | 2,323 ms |
コンパイル使用メモリ | 226,628 KB |
実行使用メモリ | 21,492 KB |
最終ジャッジ日時 | 2024-11-17 22:18:38 |
合計ジャッジ時間 | 29,344 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 | 1 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 1 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 2 ms
6,816 KB |
testcase_07 | AC | 2 ms
6,820 KB |
testcase_08 | AC | 38 ms
8,080 KB |
testcase_09 | AC | 53 ms
8,720 KB |
testcase_10 | AC | 513 ms
14,648 KB |
testcase_11 | AC | 683 ms
16,056 KB |
testcase_12 | AC | 716 ms
18,096 KB |
testcase_13 | AC | 453 ms
12,648 KB |
testcase_14 | AC | 1,029 ms
20,104 KB |
testcase_15 | AC | 911 ms
19,432 KB |
testcase_16 | AC | 1,058 ms
19,944 KB |
testcase_17 | AC | 33 ms
7,184 KB |
testcase_18 | AC | 1,404 ms
21,160 KB |
testcase_19 | AC | 1,235 ms
20,732 KB |
testcase_20 | AC | 1,301 ms
19,904 KB |
testcase_21 | AC | 1,409 ms
21,492 KB |
testcase_22 | AC | 1,155 ms
17,776 KB |
testcase_23 | AC | 887 ms
17,156 KB |
testcase_24 | AC | 1,395 ms
20,056 KB |
testcase_25 | AC | 1,043 ms
18,980 KB |
testcase_26 | AC | 916 ms
20,484 KB |
testcase_27 | AC | 989 ms
20,580 KB |
testcase_28 | AC | 2 ms
6,816 KB |
testcase_29 | AC | 1 ms
6,820 KB |
testcase_30 | AC | 1 ms
6,820 KB |
testcase_31 | AC | 1 ms
6,816 KB |
testcase_32 | AC | 2 ms
6,816 KB |
testcase_33 | AC | 1 ms
6,820 KB |
testcase_34 | AC | 2 ms
6,820 KB |
testcase_35 | AC | 2 ms
6,816 KB |
testcase_36 | AC | 2 ms
6,816 KB |
testcase_37 | AC | 1 ms
6,816 KB |
testcase_38 | AC | 2 ms
6,820 KB |
testcase_39 | AC | 2 ms
6,816 KB |
testcase_40 | AC | 1 ms
6,820 KB |
testcase_41 | AC | 1 ms
6,820 KB |
testcase_42 | AC | 1 ms
6,820 KB |
testcase_43 | AC | 1 ms
6,816 KB |
testcase_44 | AC | 1 ms
6,816 KB |
testcase_45 | AC | 2 ms
6,816 KB |
testcase_46 | AC | 2 ms
6,816 KB |
testcase_47 | AC | 344 ms
19,848 KB |
testcase_48 | AC | 344 ms
21,384 KB |
testcase_49 | AC | 994 ms
19,248 KB |
testcase_50 | AC | 1,015 ms
21,248 KB |
testcase_51 | AC | 685 ms
18,772 KB |
testcase_52 | AC | 470 ms
11,800 KB |
testcase_53 | AC | 344 ms
20,748 KB |
testcase_54 | AC | 135 ms
13,320 KB |
testcase_55 | AC | 197 ms
15,868 KB |
testcase_56 | AC | 980 ms
19,744 KB |
testcase_57 | AC | 1,014 ms
21,168 KB |
testcase_58 | AC | 349 ms
20,272 KB |
testcase_59 | AC | 354 ms
21,416 KB |
testcase_60 | AC | 1,298 ms
20,236 KB |
ソースコード
//#pragma GCC target("avx") //#pragma GCC optimize("O3") //#pragma GCC optimize("unroll-loops") #include<bits/stdc++.h> #ifdef LOCAL #include <debug.hpp> #define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else #define debug(...) (static_cast<void>(0)) #endif using namespace std; using ll = long long; using ld = long double; using pll = pair<ll, ll>; using pii = pair<int, int>; using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vpii = vector<pii>; using vpll = vector<pll>; using vs = vector<string>; template<class T> using pq = priority_queue<T, vector<T>, greater<T>>; #define overload4(_1, _2, _3, _4, name, ...) name #define overload3(a,b,c,name,...) name #define rep1(n) for (ll UNUSED_NUMBER = 0; UNUSED_NUMBER < (n); ++UNUSED_NUMBER) #define rep2(i, n) for (ll i = 0; i < (n); ++i) #define rep3(i, a, b) for (ll i = (a); i < (b); ++i) #define rep4(i, a, b, c) for (ll i = (a); i < (b); i += (c)) #define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__) #define rrep1(n) for(ll i = (n) - 1;i >= 0;i--) #define rrep2(i,n) for(ll i = (n) - 1;i >= 0;i--) #define rrep3(i,a,b) for(ll i = (b) - 1;i >= (a);i--) #define rrep4(i,a,b,c) for(ll i = (a) + ((b)-(a)-1) / (c) * (c);i >= (a);i -= c) #define rrep(...) overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__) #define all1(i) begin(i) , end(i) #define all2(i,a) begin(i) , begin(i) + a #define all3(i,a,b) begin(i) + a , begin(i) + b #define all(...) overload3(__VA_ARGS__, all3, all2, all1)(__VA_ARGS__) #define sum(...) accumulate(all(__VA_ARGS__),0LL) template<class T> bool chmin(T &a, const T &b){ if(a > b){ a = b; return 1; } else return 0; } template<class T> bool chmax(T &a, const T &b){ if(a < b){ a = b; return 1; } else return 0; } 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... Ts> void in(Ts&... t); #define INT(...) int __VA_ARGS__; in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__; in(__VA_ARGS__) #define STR(...) string __VA_ARGS__; in(__VA_ARGS__) #define CHR(...) char __VA_ARGS__; in(__VA_ARGS__) #define DBL(...) double __VA_ARGS__; in(__VA_ARGS__) #define LD(...) ld __VA_ARGS__; in(__VA_ARGS__) #define VEC(type, name, size) vector<type> name(size); in(name) #define VV(type, name, h, w) vector<vector<type>> name(h, vector<type>(w)); in(name) ll intpow(ll a, ll b){ ll ans = 1; while(b){if(b & 1) ans *= a; a *= a; b /= 2;} return ans;} ll modpow(ll a, ll b, ll p){ ll ans = 1; a %= p;if(a < 0) a += p;while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; } ll GCD(ll a,ll b) { if(a == 0 || b == 0) return 0; if(a % b == 0) return b; else return GCD(b,a%b);} ll LCM(ll a,ll b) { if(a == 0) return b; if(b == 0) return a;return a / GCD(a,b) * b;} namespace IO{ #define VOID(a) decltype(void(a)) struct setting{ setting(){cin.tie(nullptr); ios::sync_with_stdio(false);fixed(cout); cout.precision(30);}} setting; template<int I> struct P : P<I-1>{}; template<> struct P<0>{}; template<class T> void i(T& t){ i(t, P<3>{}); } void i(vector<bool>::reference t, P<3>){ int a; i(a); t = a; } template<class T> auto i(T& t, P<2>) -> VOID(cin >> t){ cin >> t; } template<class T> auto i(T& t, P<1>) -> VOID(begin(t)){ for(auto&& x : t) i(x); } template<class T, size_t... idx> void ituple(T& t, index_sequence<idx...>){ in(get<idx>(t)...);} template<class T> auto i(T& t, P<0>) -> VOID(tuple_size<T>{}){ ituple(t, make_index_sequence<tuple_size<T>::value>{});} #undef VOID } #define unpack(a) (void)initializer_list<int>{(a, 0)...} template<class... Ts> void in(Ts&... t){ unpack(IO :: i(t)); } #undef unpack static const double PI = 3.1415926535897932; template <class F> struct REC { F f; REC(F &&f_) : f(forward<F>(f_)) {} template <class... Args> auto operator()(Args &&...args) const { return f(*this, forward<Args>(args)...); }}; //constexpr int mod = 1000000007; constexpr int mod = 998244353; #include<atcoder/mincostflow> using namespace atcoder; // https://lorent-kyopro.hatenablog.com/entry/2020/07/24/170656 //BEGIN CUT HERE struct RangeToRange{ const int n; int ptr; RangeToRange(int n):n(n),ptr(3*n){} // (0n, 2n) : top segtree (to) // (2n, 4n) : bottom segtree (from) // map [3n, 4n) -> [n, 2n) template<typename F> void add_edge(int u,int v,F f){ if(3*n<=u and u<4*n) u-=2*n; f(u,v); } template<typename F> void init(F f){ for(int i=1;i<n;i++){ int l=(i<<1)|0; int r=(i<<1)|1; add_edge(0*n+i,0*n+l,f); add_edge(0*n+i,0*n+r,f); add_edge(2*n+l,2*n+i,f); add_edge(2*n+r,2*n+i,f); } } // [l1, r1) -> [l2, r2) template<typename F,typename G> void add_edge(int l1,int r1,int l2,int r2,F f,G g){ int k=ptr++; for(l1+=n,r1+=n;l1<r1;l1>>=1,r1>>=1){ if(l1&1) add_edge(2*n+(l1++),k,f); if(r1&1) add_edge(2*n+(--r1),k,f); } for(l2+=n,r2+=n;l2<r2;l2>>=1,r2>>=1){ if(l2&1) g(k,l2++); if(r2&1) g(k,--r2); } } int idx(int v)const{return 1*n+v;} size_t size()const{return ptr;} }; int main() { INT(n,m); vi u(m),v(m); rep(i,m) { cin >> u[i] >> v[i]; --u[i],--v[i]; } RangeToRange R(2*n); mcf_graph<int,int> mcf(R.size() + 2 * n + 2); auto f0 = [&](int u,int v) {return mcf.add_edge(u,v,1,0);}; auto f1 = [&](int u,int v) {return mcf.add_edge(u,v,1,2);}; int st = 8 * n,gl = 8 * n + 1; R.init(f0); rep(i,n) { mcf.add_edge(st,2*n+i,1,0); mcf.add_edge(i+3*n,gl,1,0); R.add_edge(i,i+1,n,n+i,f0,f1); R.add_edge(i,i+1,n+i+1,2*n,f0,f1); } rep(i,m) { mcf.add_edge(2*n+u[i],v[i]+3*n,1,0); mcf.add_edge(2*n+v[i],u[i]+3*n,1,0); } auto fl = mcf.flow(st,gl); cout << n - fl.second << '\n'; }