結果
問題 | No.2464 To DAG |
ユーザー | siganai |
提出日時 | 2023-09-17 13:45:21 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 241 ms / 2,000 ms |
コード長 | 5,248 bytes |
コンパイル時間 | 2,427 ms |
コンパイル使用メモリ | 211,168 KB |
実行使用メモリ | 37,888 KB |
最終ジャッジ日時 | 2024-07-04 09:12:54 |
合計ジャッジ時間 | 14,890 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 241 ms
37,888 KB |
testcase_03 | AC | 201 ms
22,404 KB |
testcase_04 | AC | 178 ms
18,680 KB |
testcase_05 | AC | 166 ms
18,248 KB |
testcase_06 | AC | 163 ms
17,904 KB |
testcase_07 | AC | 114 ms
14,180 KB |
testcase_08 | AC | 136 ms
12,796 KB |
testcase_09 | AC | 116 ms
10,996 KB |
testcase_10 | AC | 112 ms
10,444 KB |
testcase_11 | AC | 79 ms
8,388 KB |
testcase_12 | AC | 63 ms
7,660 KB |
testcase_13 | AC | 80 ms
7,764 KB |
testcase_14 | AC | 115 ms
14,868 KB |
testcase_15 | AC | 161 ms
19,144 KB |
testcase_16 | AC | 76 ms
12,088 KB |
testcase_17 | AC | 11 ms
5,376 KB |
testcase_18 | AC | 46 ms
9,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 63 ms
5,628 KB |
testcase_23 | AC | 64 ms
5,508 KB |
testcase_24 | AC | 62 ms
6,016 KB |
testcase_25 | AC | 61 ms
6,180 KB |
testcase_26 | AC | 30 ms
6,952 KB |
testcase_27 | AC | 188 ms
23,064 KB |
testcase_28 | AC | 190 ms
23,180 KB |
testcase_29 | AC | 193 ms
22,156 KB |
testcase_30 | AC | 131 ms
12,768 KB |
testcase_31 | AC | 119 ms
10,932 KB |
testcase_32 | AC | 111 ms
10,256 KB |
testcase_33 | AC | 171 ms
20,188 KB |
testcase_34 | AC | 73 ms
11,948 KB |
testcase_35 | AC | 56 ms
6,016 KB |
testcase_36 | AC | 55 ms
5,504 KB |
testcase_37 | AC | 46 ms
5,376 KB |
testcase_38 | AC | 45 ms
5,376 KB |
testcase_39 | AC | 10 ms
12,416 KB |
testcase_40 | AC | 9 ms
12,544 KB |
ソースコード
//#pragma GCC target("avx,avx2") //#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;} void Yes() {cout << "Yes\n";return;} void No() {cout << "No\n";return;} void YES() {cout << "YES\n";return;} void NO() {cout << "NO\n";return;} namespace IO{ #define VOID(a) decltype(void(a)) struct setting{ setting(){cin.tie(nullptr); ios::sync_with_stdio(false);fixed(cout); cout.precision(12);}} 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; int main() { INT(n,m); vvi g(n); rep(i,m) { INT(u,v); u--,v--; g[u].emplace_back(v); } vi used(n),adj(n); auto dfs = REC([&](auto &&f,int now) -> int { used[now] = 1; while(adj[now] < g[now].size()) { int nex = g[now][adj[now]]; if(used[nex] == 1) { g[now][adj[now]] = -1; adj[now]++; used[now] = 0; return nex; } int res = f(nex); if(res >= 0) { g[now][adj[now]] = -1; if(res != now) { used[now] = 0; adj[now]++; return res; } } adj[now]++; } used[now] = 0; return -1; }); rep(i,n) dfs(i); vpii ans; rep(i,n) for(auto &&j:g[i]) if(j != -1) ans.emplace_back(i+1,j+1); cout << n << " " << ans.size() << '\n'; for(auto &&[u,v]:ans) cout << u << " " << v << '\n'; }