結果
問題 | No.1316 Maximum Minimum Spanning Tree |
ユーザー | maspy |
提出日時 | 2023-11-30 03:51:17 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 57 ms / 2,000 ms |
コード長 | 21,009 bytes |
コンパイル時間 | 6,058 ms |
コンパイル使用メモリ | 324,620 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-26 13:48:35 |
合計ジャッジ時間 | 10,800 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 |
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testcase_00 | AC | 2 ms
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testcase_01 | AC | 2 ms
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testcase_02 | AC | 2 ms
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testcase_03 | AC | 3 ms
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testcase_04 | AC | 2 ms
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testcase_05 | AC | 2 ms
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testcase_06 | AC | 2 ms
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testcase_07 | AC | 45 ms
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testcase_08 | AC | 47 ms
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testcase_09 | AC | 51 ms
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testcase_10 | AC | 50 ms
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testcase_11 | AC | 9 ms
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testcase_12 | AC | 9 ms
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testcase_13 | AC | 9 ms
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testcase_14 | AC | 9 ms
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testcase_15 | AC | 52 ms
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testcase_16 | AC | 56 ms
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testcase_17 | AC | 51 ms
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testcase_18 | AC | 53 ms
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testcase_19 | AC | 5 ms
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testcase_20 | AC | 5 ms
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testcase_21 | AC | 5 ms
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testcase_22 | AC | 5 ms
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testcase_23 | AC | 6 ms
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testcase_24 | AC | 5 ms
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testcase_25 | AC | 5 ms
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testcase_26 | AC | 5 ms
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testcase_27 | AC | 4 ms
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testcase_28 | AC | 5 ms
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testcase_29 | AC | 4 ms
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testcase_30 | AC | 5 ms
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testcase_31 | AC | 5 ms
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testcase_32 | AC | 6 ms
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testcase_33 | AC | 5 ms
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testcase_34 | AC | 6 ms
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testcase_35 | AC | 5 ms
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testcase_36 | AC | 5 ms
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testcase_37 | AC | 5 ms
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testcase_38 | AC | 5 ms
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testcase_39 | AC | 6 ms
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testcase_40 | AC | 6 ms
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testcase_41 | AC | 6 ms
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testcase_42 | AC | 6 ms
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testcase_43 | AC | 38 ms
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testcase_44 | AC | 38 ms
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testcase_45 | AC | 43 ms
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testcase_46 | AC | 43 ms
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testcase_47 | AC | 37 ms
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testcase_48 | AC | 37 ms
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testcase_49 | AC | 35 ms
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testcase_50 | AC | 37 ms
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testcase_51 | AC | 42 ms
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testcase_52 | AC | 41 ms
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testcase_53 | AC | 44 ms
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testcase_54 | AC | 47 ms
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testcase_55 | AC | 50 ms
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testcase_56 | AC | 48 ms
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testcase_57 | AC | 50 ms
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testcase_58 | AC | 51 ms
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testcase_59 | AC | 45 ms
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testcase_60 | AC | 46 ms
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testcase_61 | AC | 51 ms
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testcase_62 | AC | 54 ms
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testcase_63 | AC | 51 ms
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testcase_64 | AC | 52 ms
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testcase_65 | AC | 56 ms
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testcase_66 | AC | 56 ms
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testcase_67 | AC | 53 ms
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testcase_68 | AC | 51 ms
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testcase_69 | AC | 50 ms
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testcase_70 | AC | 55 ms
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testcase_71 | AC | 57 ms
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testcase_72 | AC | 56 ms
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testcase_73 | AC | 56 ms
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testcase_74 | AC | 57 ms
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testcase_75 | AC | 7 ms
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testcase_76 | AC | 6 ms
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testcase_77 | AC | 6 ms
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testcase_78 | AC | 52 ms
5,376 KB |
testcase_79 | AC | 56 ms
5,376 KB |
testcase_80 | AC | 55 ms
5,376 KB |
testcase_81 | AC | 41 ms
5,376 KB |
ソースコード
#line 1 "/home/maspy/compro/library/my_template.hpp" #if defined(LOCAL) #include <my_template_compiled.hpp> #else #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; using ll = long long; using u32 = unsigned int; using u64 = unsigned long long; using i128 = __int128; using u128 = unsigned __int128; using f128 = __float128; template <class T> constexpr T infty = 0; template <> constexpr int infty<int> = 1'000'000'000; template <> constexpr ll infty<ll> = ll(infty<int>) * infty<int> * 2; template <> constexpr u32 infty<u32> = infty<int>; template <> constexpr u64 infty<u64> = infty<ll>; template <> constexpr i128 infty<i128> = i128(infty<ll>) * infty<ll>; template <> constexpr double infty<double> = infty<ll>; template <> constexpr long double infty<long double> = infty<ll>; using pi = pair<ll, ll>; using vi = vector<ll>; template <class T> using vc = vector<T>; template <class T> using vvc = vector<vc<T>>; template <class T> using vvvc = vector<vvc<T>>; template <class T> using vvvvc = vector<vvvc<T>>; template <class T> using vvvvvc = vector<vvvvc<T>>; template <class T> using pq = priority_queue<T>; template <class T> using pqg = priority_queue<T, vector<T>, greater<T>>; #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__)))) // https://trap.jp/post/1224/ #define FOR1(a) for (ll _ = 0; _ < ll(a); ++_) #define FOR2(i, a) for (ll i = 0; i < ll(a); ++i) #define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i) #define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c)) #define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i) #define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i) #define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i) #define overload4(a, b, c, d, e, ...) e #define overload3(a, b, c, d, ...) d #define FOR(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__) #define FOR_R(...) overload3(__VA_ARGS__, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__) #define FOR_subset(t, s) \ for (ll t = (s); t >= 0; t = (t == 0 ? -1 : (t - 1) & (s))) #define all(x) x.begin(), x.end() #define len(x) ll(x.size()) #define elif else if #define eb emplace_back #define mp make_pair #define mt make_tuple #define fi first #define se second #define stoi stoll int popcnt(int x) { return __builtin_popcount(x); } int popcnt(u32 x) { return __builtin_popcount(x); } int popcnt(ll x) { return __builtin_popcountll(x); } int popcnt(u64 x) { return __builtin_popcountll(x); } int popcnt_mod_2(int x) { return __builtin_parity(x); } int popcnt_mod_2(u32 x) { return __builtin_parity(x); } int popcnt_mod_2(ll x) { return __builtin_parityll(x); } int popcnt_mod_2(u64 x) { return __builtin_parityll(x); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 1, 2) int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(u32 x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } int topbit(u64 x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 0, 2) int lowbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(u32 x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } int lowbit(u64 x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } template <typename T> T floor(T a, T b) { return a / b - (a % b && (a ^ b) < 0); } template <typename T> T ceil(T x, T y) { return floor(x + y - 1, y); } template <typename T> T bmod(T x, T y) { return x - y * floor(x, y); } template <typename T> pair<T, T> divmod(T x, T y) { T q = floor(x, y); return {q, x - q * y}; } template <typename T, typename U> T SUM(const vector<U> &A) { T sm = 0; for (auto &&a: A) sm += a; return sm; } #define MIN(v) *min_element(all(v)) #define MAX(v) *max_element(all(v)) #define LB(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define UB(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define UNIQUE(x) \ sort(all(x)), x.erase(unique(all(x)), x.end()), x.shrink_to_fit() template <typename T> T POP(deque<T> &que) { T a = que.front(); que.pop_front(); return a; } template <typename T> T POP(pq<T> &que) { T a = que.top(); que.pop(); return a; } template <typename T> T POP(pqg<T> &que) { T a = que.top(); que.pop(); return a; } template <typename T> T POP(vc<T> &que) { T a = que.back(); que.pop_back(); return a; } template <typename F> ll binary_search(F check, ll ok, ll ng, bool check_ok = true) { if (check_ok) assert(check(ok)); while (abs(ok - ng) > 1) { auto x = (ng + ok) / 2; (check(x) ? ok : ng) = x; } return ok; } template <typename F> double binary_search_real(F check, double ok, double ng, int iter = 100) { FOR(iter) { double x = (ok + ng) / 2; (check(x) ? ok : ng) = x; } return (ok + ng) / 2; } 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); } // ? は -1 vc<int> s_to_vi(const string &S, char first_char) { vc<int> A(S.size()); FOR(i, S.size()) { A[i] = (S[i] != '?' ? S[i] - first_char : -1); } return A; } template <typename T, typename U> vector<T> cumsum(vector<U> &A, int off = 1) { int N = A.size(); vector<T> B(N + 1); FOR(i, N) { B[i + 1] = B[i] + A[i]; } if (off == 0) B.erase(B.begin()); return B; } // stable sort template <typename T> vector<int> argsort(const vector<T> &A) { vector<int> ids(len(A)); iota(all(ids), 0); sort(all(ids), [&](int i, int j) { return (A[i] == A[j] ? i < j : A[i] < A[j]); }); return ids; } // A[I[0]], A[I[1]], ... template <typename T> vc<T> rearrange(const vc<T> &A, const vc<int> &I) { vc<T> B(len(I)); FOR(i, len(I)) B[i] = A[I[i]]; return B; } #endif #line 1 "/home/maspy/compro/library/other/io.hpp" #define FASTIO #include <unistd.h> // https://judge.yosupo.jp/submission/21623 namespace fastio { static constexpr uint32_t SZ = 1 << 17; char ibuf[SZ]; char obuf[SZ]; char out[100]; // pointer of ibuf, obuf uint32_t pil = 0, pir = 0, por = 0; struct Pre { char num[10000][4]; constexpr Pre() : num() { for (int i = 0; i < 10000; i++) { int n = i; for (int j = 3; j >= 0; j--) { num[i][j] = n % 10 | '0'; n /= 10; } } } } constexpr pre; inline void load() { memcpy(ibuf, ibuf + pil, pir - pil); pir = pir - pil + fread(ibuf + pir - pil, 1, SZ - pir + pil, stdin); pil = 0; if (pir < SZ) ibuf[pir++] = '\n'; } inline void flush() { fwrite(obuf, 1, por, stdout); por = 0; } void rd(char &c) { do { if (pil + 1 > pir) load(); c = ibuf[pil++]; } while (isspace(c)); } void rd(string &x) { x.clear(); char c; do { if (pil + 1 > pir) load(); c = ibuf[pil++]; } while (isspace(c)); do { x += c; if (pil == pir) load(); c = ibuf[pil++]; } while (!isspace(c)); } template <typename T> void rd_real(T &x) { string s; rd(s); x = stod(s); } template <typename T> void rd_integer(T &x) { if (pil + 100 > pir) load(); char c; do c = ibuf[pil++]; while (c < '-'); bool minus = 0; if constexpr (is_signed<T>::value || is_same_v<T, i128>) { if (c == '-') { minus = 1, c = ibuf[pil++]; } } x = 0; while ('0' <= c) { x = x * 10 + (c & 15), c = ibuf[pil++]; } if constexpr (is_signed<T>::value || is_same_v<T, i128>) { if (minus) x = -x; } } void rd(int &x) { rd_integer(x); } void rd(ll &x) { rd_integer(x); } void rd(i128 &x) { rd_integer(x); } void rd(u32 &x) { rd_integer(x); } void rd(u64 &x) { rd_integer(x); } void rd(u128 &x) { rd_integer(x); } void rd(double &x) { rd_real(x); } void rd(long double &x) { rd_real(x); } void rd(f128 &x) { rd_real(x); } template <class T, class U> void rd(pair<T, U> &p) { return rd(p.first), rd(p.second); } template <size_t N = 0, typename T> void rd_tuple(T &t) { if constexpr (N < std::tuple_size<T>::value) { auto &x = std::get<N>(t); rd(x); rd_tuple<N + 1>(t); } } template <class... T> void rd(tuple<T...> &tpl) { rd_tuple(tpl); } template <size_t N = 0, typename T> void rd(array<T, N> &x) { for (auto &d: x) rd(d); } template <class T> void rd(vc<T> &x) { for (auto &d: x) rd(d); } void read() {} template <class H, class... T> void read(H &h, T &... t) { rd(h), read(t...); } void wt(const char c) { if (por == SZ) flush(); obuf[por++] = c; } void wt(const string s) { for (char c: s) wt(c); } void wt(const char *s) { size_t len = strlen(s); for (size_t i = 0; i < len; i++) wt(s[i]); } template <typename T> void wt_integer(T x) { if (por > SZ - 100) flush(); if (x < 0) { obuf[por++] = '-', x = -x; } int outi; for (outi = 96; x >= 10000; outi -= 4) { memcpy(out + outi, pre.num[x % 10000], 4); x /= 10000; } if (x >= 1000) { memcpy(obuf + por, pre.num[x], 4); por += 4; } else if (x >= 100) { memcpy(obuf + por, pre.num[x] + 1, 3); por += 3; } else if (x >= 10) { int q = (x * 103) >> 10; obuf[por] = q | '0'; obuf[por + 1] = (x - q * 10) | '0'; por += 2; } else obuf[por++] = x | '0'; memcpy(obuf + por, out + outi + 4, 96 - outi); por += 96 - outi; } template <typename T> void wt_real(T x) { ostringstream oss; oss << fixed << setprecision(15) << double(x); string s = oss.str(); wt(s); } void wt(int x) { wt_integer(x); } void wt(ll x) { wt_integer(x); } void wt(i128 x) { wt_integer(x); } void wt(u32 x) { wt_integer(x); } void wt(u64 x) { wt_integer(x); } void wt(u128 x) { wt_integer(x); } void wt(double x) { wt_real(x); } void wt(long double x) { wt_real(x); } void wt(f128 x) { wt_real(x); } template <class T, class U> void wt(const pair<T, U> val) { wt(val.first); wt(' '); wt(val.second); } template <size_t N = 0, typename T> void wt_tuple(const T t) { if constexpr (N < std::tuple_size<T>::value) { if constexpr (N > 0) { wt(' '); } const auto x = std::get<N>(t); wt(x); wt_tuple<N + 1>(t); } } template <class... T> void wt(tuple<T...> tpl) { wt_tuple(tpl); } template <class T, size_t S> void wt(const array<T, S> val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) wt(' '); wt(val[i]); } } template <class T> void wt(const vector<T> val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) wt(' '); wt(val[i]); } } void print() { wt('\n'); } template <class Head, class... Tail> void print(Head &&head, Tail &&... tail) { wt(head); if (sizeof...(Tail)) wt(' '); print(forward<Tail>(tail)...); } // gcc expansion. called automaticall after main. void __attribute__((destructor)) _d() { flush(); } } // namespace fastio using fastio::read; using fastio::print; using fastio::flush; #define INT(...) \ int __VA_ARGS__; \ read(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ read(__VA_ARGS__) #define U32(...) \ u32 __VA_ARGS__; \ read(__VA_ARGS__) #define U64(...) \ u64 __VA_ARGS__; \ read(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ read(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ read(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ read(__VA_ARGS__) #define VEC(type, name, size) \ vector<type> name(size); \ read(name) #define VV(type, name, h, w) \ vector<vector<type>> name(h, vector<type>(w)); \ read(name) void YES(bool t = 1) { print(t ? "YES" : "NO"); } void NO(bool t = 1) { YES(!t); } void Yes(bool t = 1) { print(t ? "Yes" : "No"); } void No(bool t = 1) { Yes(!t); } void yes(bool t = 1) { print(t ? "yes" : "no"); } void no(bool t = 1) { yes(!t); } #line 1 "/home/maspy/compro/library/flow/maxflow.hpp" // incremental に辺を追加してよい template <typename Cap> struct MaxFlow { struct Edge { int to, rev; Cap cap; Cap flow = 0; }; const int N, source, sink; vvc<Edge> edges; vc<int> prog, level; vc<int> que; bool calculated; Cap flow_ans; MaxFlow(int N, int source, int sink) : N(N), source(source), sink(sink), edges(N), calculated(0), flow_ans(0) {} void add(int frm, int to, Cap cap, Cap rev_cap = 0) { calculated = 0; assert(0 <= frm && frm < N); assert(0 <= to && to < N); assert(frm != to); assert(Cap(0) <= cap); if (frm == to) return; int a = len(edges[frm]); int b = len(edges[to]); edges[frm].eb(Edge{to, b, cap, 0}); edges[to].eb(Edge{frm, a, rev_cap, 0}); } // frm, to, flow vc<tuple<int, int, Cap>> get_flow_edges() { vc<tuple<int, int, Cap>> res; FOR(frm, N) { for (auto&& e: edges[frm]) { if (e.flow <= 0) continue; res.eb(frm, e.to, e.flow); } } return res; } // 差分ではなくこれまでの総量 Cap flow() { if (calculated) return flow_ans; calculated = true; while (set_level()) { prog.assign(N, 0); while (1) { Cap x = flow_dfs(source, infty<Cap>); if (x == 0) break; flow_ans += x; chmin(flow_ans, infty<Cap>); if (flow_ans == infty<Cap>) return flow_ans; } } return flow_ans; } // 最小カットの値および、カットを表す 01 列を返す pair<Cap, vc<int>> cut() { flow(); vc<int> res(N); FOR(v, N) res[v] = (level[v] >= 0 ? 0 : 1); return {flow_ans, res}; } // O(F(N+M)) くらい使って経路復元 // simple path になる vvc<int> path_decomposition() { flow(); auto edges = get_flow_edges(); vvc<int> TO(N); for (auto&& [frm, to, flow]: edges) { FOR(flow) TO[frm].eb(to); } vvc<int> res; vc<int> vis(N); FOR(flow_ans) { vc<int> path = {source}; vis[source] = 1; while (path.back() != sink) { int to = POP(TO[path.back()]); while (vis[to]) { vis[POP(path)] = 0; } path.eb(to), vis[to] = 1; } for (auto&& v: path) vis[v] = 0; res.eb(path); } return res; } void debug() { print("source", source); print("sink", sink); print("edges (frm, to, cap, flow)"); FOR(v, N) { for (auto& e: edges[v]) { if (e.cap == 0 && e.flow == 0) continue; print(v, e.to, e.cap, e.flow); } } } private: bool set_level() { que.resize(N); level.assign(N, -1); level[source] = 0; int l = 0, r = 0; que[r++] = source; while (l < r) { int v = que[l++]; for (auto&& e: edges[v]) { if (e.cap > 0 && level[e.to] == -1) { level[e.to] = level[v] + 1; if (e.to == sink) return true; que[r++] = e.to; } } } return false; } Cap flow_dfs(int v, Cap lim) { if (v == sink) return lim; Cap res = 0; for (int& i = prog[v]; i < len(edges[v]); ++i) { auto& e = edges[v][i]; if (e.cap > 0 && level[e.to] == level[v] + 1) { Cap a = flow_dfs(e.to, min(lim, e.cap)); if (a > 0) { e.cap -= a, e.flow += a; edges[e.to][e.rev].cap += a, edges[e.to][e.rev].flow -= a; res += a; lim -= a; if (lim == 0) break; } } } return res; } }; #line 2 "/home/maspy/compro/library/flow/binary_optimization.hpp" template <typename T, bool MINIMIZE> struct Binary_Optimization { int n; int nxt; int source, sink; T base_cost; map<pair<int, int>, T> edges; Binary_Optimization(int n) : n(n), base_cost(0) { source = n; sink = n + 1; nxt = n + 2; } // xi を 0, 1 にするときにかかるコストを追加する。 void add_1(int i, T x0, T x1) { assert(0 <= i && i < n); if (!MINIMIZE) { x0 = -x0, x1 = -x1; } _add_1(i, x0, x1); } // (xi,xj) = (00,01,10,11) とするときにかかるコストを追加する。 // コストが劣モ x00 + x11 <= x10 + x10 になっている必要がある。 // 特に、対角成分に利得を与えることができる。 void add_2(int i, int j, T x00, T x01, T x10, T x11) { assert(i != j); assert(0 <= i && i < n); assert(0 <= j && j < n); if (!MINIMIZE) { x00 = -x00, x01 = -x01; x10 = -x10, x11 = -x11; } _add_2(i, j, x00, x01, x10, x11); } // (xi,xj,xk) = (000,001,010,011,100,101,110,111) // とするときにかかるコストを追加する。劣モになっている必要がある。 // 特に、000 や 111 に利得を与えることができる。 void add_3(int i, int j, int k, T x000, T x001, T x010, T x011, T x100, T x101, T x110, T x111) { assert(i != j && i != k && j != k); assert(0 <= i && i < n); assert(0 <= j && j < n); assert(0 <= k && k < n); if (!MINIMIZE) { x000 = -x000, x001 = -x001; x010 = -x010, x011 = -x011; x100 = -x100, x101 = -x101; x110 = -x110, x111 = -x111; } _add_3(i, j, k, x000, x001, x010, x011, x100, x101, x110, x111); } // 最小値および、01 列を返す pair<T, vc<int>> calc() { MaxFlow<T> G(nxt, source, sink); for (auto&& [key, cap]: edges) { auto [frm, to] = key; G.add(frm, to, cap); } auto [val, cut] = G.cut(); val += base_cost; chmin(val, infty<T>); cut.resize(n); if (!MINIMIZE) val = -val; return {val, cut}; } void debug() { print("base_cost", base_cost); print("source=", source, "sink=", sink); for (auto&& [key, cap]: edges) print(key, cap); } private: void add_edge(int i, int j, T t) { assert(t >= 0); if (t == 0) return; pair<int, int> key = mp(i, j); edges[key] += t; chmin(edges[key], infty<T>); } void _add_1(int i, T x0, T x1) { if (x0 <= x1) { base_cost += x0; add_edge(source, i, x1 - x0); } else { base_cost += x1; add_edge(i, sink, x0 - x1); } } void _add_2(int i, int j, T x00, T x01, T x10, T x11) { assert(x00 + x11 <= x01 + x10); _add_1(i, x00, x10); _add_1(j, 0, x11 - x10); add_edge(i, j, x01 + x10 - x00 - x11); } void _add_3(int i, int j, int k, T x000, T x001, T x010, T x011, T x100, T x101, T x110, T x111) { T p = x000 - x100 - x010 - x001 + x110 + x101 + x011 - x111; if (p > 0) { base_cost += x000; _add_1(i, 0, x100 - x000); _add_1(j, 0, x010 - x000); _add_1(k, 0, x001 - x000); _add_2(i, j, 0, 0, 0, x000 + x110 - x100 - x010); _add_2(i, k, 0, 0, 0, x000 + x101 - x100 - x001); _add_2(j, k, 0, 0, 0, x000 + x011 - x010 - x001); // あとは、111 のときに利得 p を追加する base_cost -= p; // 111 以外だとコスト p add_edge(i, nxt, p); add_edge(j, nxt, p); add_edge(k, nxt, p); add_edge(nxt, sink, p); ++nxt; } else { p = -p; base_cost += x111; _add_1(i, x011 - x111, 0); _add_1(i, x101 - x111, 0); _add_1(i, x110 - x111, 0); _add_2(i, j, x111 + x001 - x011 - x101, 0, 0, 0); _add_2(i, k, x111 + x010 - x011 - x110, 0, 0, 0); _add_2(j, k, x111 + x100 - x101 - x110, 0, 0, 0); // 000 のときに利得 p を追加する base_cost -= p; // 000 以外だとコスト p add_edge(nxt, i, p); add_edge(nxt, j, p); add_edge(nxt, k, p); add_edge(source, nxt, p); ++nxt; } } }; #line 4 "main.cpp" // 解説読みまくり void solve() { LL(N, M, K); using T = tuple<ll, ll, ll, ll>; vc<T> dat; FOR(M) { LL(a, b, c, d); dat.eb(--a, --b, c, d); } sort(all(dat), [&](auto& a, auto& b) -> bool { return get<2>(a) < get<2>(b); }); vi Y(M); FOR(i, M) { auto [a, b, c, d] = dat[i]; /* 解きたい問題:y を最大化 ・y<=d ・空でない任意の頂点集合 S に対して sum y <= K(|S|-1) ・辺 i を含む S に限定してよい K|S|-sum y - y_i >= K K+y_i <= K|S|-sum y 右辺の min をフローで求める */ Binary_Optimization<ll, true> BO(N + M); FOR(v, N) { BO.add_1(v, 0, K); } FOR(i, M) { BO.add_1(N + i, 0, -Y[i]); } BO.add_1(N + i, infty<ll>, 0); FOR(i, M) { auto [a, b, c, d] = dat[i]; BO.add_2(a, N + i, 0, infty<ll>, 0, 0); BO.add_2(b, N + i, 0, infty<ll>, 0, 0); } auto [ans, x] = BO.calc(); ll y = d; chmin(y, ans - K); Y[i] = y; // print(a, b, c, d, y); } if (SUM<ll>(Y) != K * (N - 1)) return print(-1); ll ANS = 0; FOR(i, M) { auto [a, b, c, d] = dat[i]; ANS += c * Y[i]; } print(ANS); } signed main() { int T = 1; // INT(T); FOR(T) solve(); return 0; }