結果
問題 | No.1690 Power Grid |
ユーザー | peroon |
提出日時 | 2021-09-24 22:59:41 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 194 ms / 3,000 ms |
コード長 | 9,155 bytes |
コンパイル時間 | 2,510 ms |
コンパイル使用メモリ | 197,516 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-05 11:09:54 |
合計ジャッジ時間 | 5,458 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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
6,812 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 101 ms
6,944 KB |
testcase_07 | AC | 103 ms
6,940 KB |
testcase_08 | AC | 104 ms
6,940 KB |
testcase_09 | AC | 103 ms
6,944 KB |
testcase_10 | AC | 4 ms
6,944 KB |
testcase_11 | AC | 188 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 17 ms
6,940 KB |
testcase_15 | AC | 194 ms
6,940 KB |
testcase_16 | AC | 98 ms
6,944 KB |
testcase_17 | AC | 58 ms
6,944 KB |
testcase_18 | AC | 22 ms
6,940 KB |
testcase_19 | AC | 101 ms
6,944 KB |
testcase_20 | AC | 98 ms
6,944 KB |
testcase_21 | AC | 3 ms
6,944 KB |
testcase_22 | AC | 182 ms
6,940 KB |
testcase_23 | AC | 188 ms
6,944 KB |
testcase_24 | AC | 184 ms
6,944 KB |
testcase_25 | AC | 189 ms
6,944 KB |
testcase_26 | AC | 191 ms
6,940 KB |
testcase_27 | AC | 1 ms
6,944 KB |
ソースコード
#ifdef LOCAL #define _GLIBCXX_DEBUG #define __clock__ #else #pragma GCC optimize("Ofast") #endif #include<bits/stdc++.h> using namespace std; using ll = long long; using VI = vector<ll>; using VV = vector<VI>; using VS = vector<string>; using PII = pair<ll, ll>; // #define INT128 // 必要なら有効化してください #ifdef INT128 using LL = __int128; #endif // tourist set template <typename A, typename B> string to_string(pair<A, B> p); template <typename A, typename B, typename C> string to_string(tuple<A, B, C> p); template <typename A, typename B, typename C, typename D> string to_string(tuple<A, B, C, D> p); string to_string(const string& s) { return '"' + s + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(bool b) { return (b ? "true" : "false"); } string to_string(char c){ string s = {c}; return s; } // LL #ifdef INT128 // input istream& operator>>(istream& is, LL& v) { string s; is >> s; v = 0; for (int i = 0; i < (int)s.size(); i++) { if (isdigit(s[i])) { v = v * 10 + s[i] - '0'; } } if (s[0] == '-') { v *= -1; } return is; } std::ostream &operator<<(std::ostream &dest, LL value) { std::ostream::sentry s(dest); if (s) { LL tmp = value < 0 ? -value : value; char buffer[128]; char *d = std::end(buffer); do { --d; *d = "0123456789"[tmp % 10]; tmp /= 10; } while (tmp != 0); if (value < 0) { --d; *d = '-'; } int len = std::end(buffer) - d; if (dest.rdbuf()->sputn(d, len) != len) { dest.setstate(std::ios_base::badbit); } } return dest; } string to_string(LL v){ stringstream ss; ss << v; return ss.str(); } #endif // LL string to_string(vector<bool> v) { bool first = true; string res = "{"; for (int i = 0; i < static_cast<int>(v.size()); i++) { if (!first) { res += ", "; } first = false; res += to_string(v[i]); } res += "}"; return res; } template <size_t N> string to_string(bitset<N> v) { string res = ""; for (size_t i = 0; i < N; i++) { res += static_cast<char>('0' + v[i]); } return res; } template <typename A> string to_string(A v) { bool first = true; string res = "{"; for (const auto &x : v) { if (!first) { res += ", "; } first = false; res += to_string(x); } res += "}"; return res; } template <typename A, typename B> string to_string(pair<A, B> p) { return "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; } template <typename A, typename B, typename C> string to_string(tuple<A, B, C> p) { return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")"; } template <typename A, typename B, typename C, typename D> string to_string(tuple<A, B, C, D> p) { return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")"; } void debug_out() { cerr << '\n'; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << to_string(H); debug_out(T...); } #ifdef LOCAL #define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif // tourist set end template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } #define FOR(i,a,b) for(ll i=(a);i<(b);++i) #define rep(i,b) FOR(i, 0, b) #define ALL(v) (v).begin(), (v).end() #define p(s) cout<<(s)<<'\n' #define p2(s, t) cout << (s) << " " << (t) << '\n' #define SZ(x) ((int)(x).size()) #define SORT(A) sort(ALL(A)) #define RSORT(A) sort(ALL(A), greater<ll>()) #define MP make_pair #define p_yes() p("Yes") #define p_no() p("No") #define p_possible() p("Possible") #define p_impossible() p("Impossible") void yes(){p_yes(); exit(0);} void no(){p_no(); exit(0);} void possible(){p_possible(); exit(0);} void impossible(){p_impossible(); exit(0);} ll SUM(VI& V){ return accumulate(ALL(V), 0LL); } ll MIN(VI& V){return *min_element(ALL(V));} ll MAX(VI& V){return *max_element(ALL(V));} void print_vector(VI& V, ll offset=0){ ll n = V.size(); rep(i, n){ if(i) cout << ' '; cout << V[i]+offset; } cout << endl; } ll gcd(ll a,ll b){ if(b == 0) return a; return gcd(b,a%b); } ll lcm(ll a,ll b){ ll g = gcd(a,b); return a / g * b; } // long double using ld = long double; // #define EPS (1e-14) constexpr ld EPS = 1e-14; // #define equals(a,b) (fabs((a)-(b)) < EPS) constexpr bool equals(ld a, ld b){return fabs((a)-(b)) < EPS;} // 小さい順に取り出すpriority queue using inverse_priority_queue = priority_queue<ll, vector<ll>, greater<ll> >; int popcount(ll t){ return __builtin_popcountll(t); } const ll mod = 1e9 + 7; // const ll mod = 998244353; const ll inf = 4e18; // LLONG_MAX = 9223372036854775807 (atcoder, codeforces) const double PI = acos(-1); // [a/b] (繰り上げ) ll ceil_div(ll a, ll b){ return (a+b-1)/b; } ll ll_pow(ll a, ll n){ ll ans = 1; FOR(i, 0, n){ ans *= a; } return ans; } // modなし // snuke's mint // auto mod int // https://youtu.be/L8grWxBlIZ4?t=9858 // https://youtu.be/ERZuLAxZffQ?t=4807 : optimize // https://youtu.be/8uowVvQ_-Mo?t=1329 : division // const int mod = 1000000007; struct mint { ll x; // using ll = long long; mint(ll x=0):x((x%mod+mod)%mod){} mint operator-() const { return mint(-x);} mint& operator+=(const mint a) { if ((x += a.x) >= mod) x -= mod; return *this; } mint& operator-=(const mint a) { if ((x += mod-a.x) >= mod) x -= mod; return *this; } mint& operator*=(const mint a) { (x *= a.x) %= mod; return *this; } mint operator+(const mint a) const { mint res(*this); return res+=a; } mint operator-(const mint a) const { mint res(*this); return res-=a; } mint operator*(const mint a) const { mint res(*this); return res*=a; } mint pow(ll t) const { if (!t) return 1; mint a = pow(t>>1); a *= a; if (t&1) a *= *this; return a; } // for prime mod mint inv() const { return pow(mod-2); } mint& operator/=(const mint a) { return (*this) *= a.inv(); } mint operator/(const mint a) const { mint res(*this); return res/=a; } }; // ※双方向 // N : 頂点数 // M : 辺数 // return vector<vector<ll>> VV load_graph(ll N, ll M){ VV G(N); rep(i,M){ ll a,b;cin>>a>>b; a--;b--; G[a].push_back(b); G[b].push_back(a); } return G; } VV load_tree(ll N){ return load_graph(N, N-1); } VI loadV(ll N){ VI A(N); rep(i,N)cin>>A[i]; return A; } //#include <atcoder/dsu> //using namespace atcoder; // 忘れがち // 必要メモリ O(N^2) // 計算量 O(N^3) struct WarshallFloyd{ VV d; ll N; bool pre_calculated = false; WarshallFloyd(ll n){ if(n>=2000){ cerr << "[warning]maybe data size is too big"; } N = n; d.resize(N, VI(N, inf)); rep(i, N) d[i][i] = 0; } // 単方向 void register_edge(ll a, ll b, ll c){ d[a][b] = c; } // 双方向 void register_edge2(ll a, ll b, ll c){ register_edge(a,b,c); register_edge(b,a,c); } void calc(){ rep(i, N){ // 経由点 rep(j, N){ // 始点 rep(k, N){ // 終点 d[j][k] = min(d[j][k], d[j][i] + d[i][k]); } } } pre_calculated = true; } ll distance(ll a, ll b){ // 計算忘れ対応 if(!pre_calculated){ debug("auto calc"); calc(); } return d[a][b]; } }; int main(){ cin.tie(0); ios::sync_with_stdio(false); // input ll N,M,K; cin>>N>>M>>K; debug(N,M,K); VI A = loadV(N); debug(A); auto wa = WarshallFloyd(N); rep(i,M){ ll a,b,c; cin>>a>>b>>c; a--;b--; wa.register_edge2(a,b,c); } wa.calc(); rep(i,N){ rep(j,N){ debug(wa.distance(i,j)); } } VI memo(1LL<<N, -1); function<ll(ll)> g = [&](ll f){ if(memo[f]!=-1)return memo[f]; if(f==0)return 0LL; if(popcount(f)==1){ rep(i,N){ if(f>>i&1){ return memo[f]=A[i]; } } } // 以降、フラグは2つ以上立っている ll mi = inf; rep(i,N){ if(f>>i&1){ // i番目を最後に建てた場合のコスト ll near_cost = inf; rep(j,N){ if(i==j)continue; if(f>>j&1){ chmin(near_cost, wa.distance(i,j)); } } ll new_flag = f ^ (1<<i); // i番目のフラグを下ろす ll total_cost = near_cost + A[i] + g(new_flag); chmin(mi,total_cost); } } return memo[f]=mi; }; // debug(g(6));exit(0); VI I(N); rep(i,K)I[i]=1; SORT(I); ll mi=inf; do{ // フラグに変換 ll f=0; rep(i,N){ if(I[i])f += 1LL<<i; } ll cost = g(f); chmin(mi,cost); }while(next_permutation(ALL(I))); p(mi); return 0; }