結果
問題 | No.2642 Don't cut line! |
ユーザー | woodywoody |
提出日時 | 2024-02-23 20:24:06 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 111 ms / 4,000 ms |
コード長 | 9,394 bytes |
コンパイル時間 | 3,834 ms |
コンパイル使用メモリ | 251,580 KB |
実行使用メモリ | 30,136 KB |
最終ジャッジ日時 | 2024-09-29 05:15:28 |
合計ジャッジ時間 | 7,739 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 2 ms
6,820 KB |
testcase_01 | AC | 111 ms
29,108 KB |
testcase_02 | AC | 109 ms
30,136 KB |
testcase_03 | AC | 108 ms
29,240 KB |
testcase_04 | AC | 111 ms
28,852 KB |
testcase_05 | AC | 110 ms
29,792 KB |
testcase_06 | AC | 63 ms
7,936 KB |
testcase_07 | AC | 65 ms
8,064 KB |
testcase_08 | AC | 63 ms
7,936 KB |
testcase_09 | AC | 61 ms
7,936 KB |
testcase_10 | AC | 63 ms
8,064 KB |
testcase_11 | AC | 61 ms
7,808 KB |
testcase_12 | AC | 72 ms
8,064 KB |
testcase_13 | AC | 69 ms
7,808 KB |
testcase_14 | AC | 67 ms
7,808 KB |
testcase_15 | AC | 65 ms
7,936 KB |
testcase_16 | AC | 64 ms
14,260 KB |
testcase_17 | AC | 96 ms
26,356 KB |
testcase_18 | AC | 97 ms
26,772 KB |
testcase_19 | AC | 76 ms
21,772 KB |
testcase_20 | AC | 57 ms
12,800 KB |
testcase_21 | AC | 39 ms
8,192 KB |
testcase_22 | AC | 46 ms
11,392 KB |
testcase_23 | AC | 111 ms
29,492 KB |
testcase_24 | AC | 52 ms
13,824 KB |
testcase_25 | AC | 59 ms
12,928 KB |
testcase_26 | AC | 74 ms
9,856 KB |
testcase_27 | AC | 69 ms
20,352 KB |
testcase_28 | AC | 103 ms
27,288 KB |
testcase_29 | AC | 74 ms
10,752 KB |
testcase_30 | AC | 63 ms
12,544 KB |
testcase_31 | AC | 84 ms
23,560 KB |
testcase_32 | AC | 66 ms
11,648 KB |
testcase_33 | AC | 2 ms
6,816 KB |
testcase_34 | AC | 2 ms
6,816 KB |
testcase_35 | AC | 2 ms
6,820 KB |
コンパイルメッセージ
main.cpp: In member function 'void HeavyLightDecomposition::path_query(int, int, bool, const F&)': main.cpp:169:21: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 169 | for (auto &&[a, b] : ascend(u, l)){ | ^ main.cpp:174:21: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 174 | for (auto &&[a, b] : descend(l, v)){ | ^
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> #define rep(i,b) for(int i=0;i<b;i++) #define rrep(i,b) for(int i=b-1;i>=0;i--) #define rep1(i,b) for(int i=1;i<b;i++) #define repx(i,x,b) for(int i=x;i<b;i++) #define rrepx(i,x,b) for(int i=b-1;i>=x;i--) #define fore(i,a) for(auto& i:a) #define rng(x) (x).begin(), (x).end() #define rrng(x) (x).rbegin(), (x).rend() #define sz(x) ((int)(x).size()) #define pb push_back #define fi first #define se second #define pcnt __builtin_popcountll using namespace std; using namespace atcoder; using ll = long long; using ld = long double; template<typename T> using mpq = priority_queue<T, vector<T>, greater<T>>; template<typename T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<typename T> bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } template<typename T> ll sumv(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;} bool yn(bool a) { if(a) {cout << "Yes" << endl; return true;} else {cout << "No" << endl; return false;}} #define retval(x) {cout << #x << endl; return;} #define cout2(x,y) cout << x << " " << y << endl; #define coutp(p) cout << p.fi << " " << p.se << endl; #define out cout << ans << endl; #define outd cout << fixed << setprecision(20) << ans << endl; #define outm cout << ans.val() << endl; #define outv fore(yans , ans) cout << yans << "\n"; #define outdv fore(yans , ans) cout << yans.val() << "\n"; #define assertmle(x) if (!(x)) {vi v(3e8);} #define asserttle(x) if (!(x)) {while(1){}} #define coutv(v) {fore(vy , v) {cout << vy << " ";} cout << endl;} #define coutv2(v) fore(vy , v) cout << vy << "\n"; #define coutvm(v) {fore(vy , v) {cout << vy.val() << " ";} cout << endl;} #define coutvm2(v) fore(vy , v) cout << vy.val() << "\n"; using pll = pair<ll,ll>;using pil = pair<int,ll>;using pli = pair<ll,int>;using pii = pair<int,int>;using pdd = pair<ld,ld>; using vi = vector<int>;using vd = vector<ld>;using vl = vector<ll>;using vs = vector<string>;using vb = vector<bool>; using vpii = vector<pii>;using vpli = vector<pli>;using vpll = vector<pll>;using vpil = vector<pil>; using vvi = vector<vector<int>>;using vvl = vector<vector<ll>>;using vvs = vector<vector<string>>;using vvb = vector<vector<bool>>; using vvpii = vector<vector<pii>>;using vvpli = vector<vector<pli>>;using vvpll = vector<vpll>;using vvpil = vector<vpil>; using mint = modint998244353; //using mint = modint1000000007; //using mint = dynamic_modint<0>; using vm = vector<mint>; using vvm = vector<vector<mint>>; vector<int> dx={1,0,-1,0,1,1,-1,-1},dy={0,1,0,-1,1,-1,1,-1}; ll gcd(ll a, ll b) { return a?gcd(b%a,a):b;} ll lcm(ll a, ll b) { return a/gcd(a,b)*b;} #define yes {cout <<"Yes"<<endl;} #define no {cout <<"No"<<endl;} const double eps = 1e-10; const ll LINF = 1001002003004005006ll; const int INF = 1001001001; #ifdef MY_LOCAL_DEBUG #include "./debug/localDebug.cpp" #define showp(p) cerr<<#p<<" = "<<p.fi<<" : "<<p.se<<endl #define show1(a) cerr<<#a<<" = "<<a<<endl #define show2(a,b) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<endl #define show3(a,b,c) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<endl #define show4(a,b,c,d) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<" : "<<#d<<" = "<<d<<endl #define show5(a,b,c,d,e) cerr<<#a<<" = "<<a<<" : "<<#b<<" = "<<b<<" : "<<#c<<" = "<<c<<" : "<<#d<<" = "<<d<<" : "<<#e<<" = "<<e<<endl #define DEBUG_LINE cout << "DEBUG_LINE : " << __LINE__ << endl #define showv(v) {cout<<#v<<" : "; fore(vy , v) {cout << vy << " ";} cout << endl;} #define showv2(v) {cout<<#v<<endl; fore(vy , v) cout << vy << "\n";} #define showvm(v) {cout<<#v<<" : "; fore(vy , v) {cout << vy.val() << " ";} cout << endl;} #define showvm2(v) {cout<<#v<<endl; fore(vy , v) cout << vy.val() << "\n";} #define showmat(v) {cout<<#v<<endl; fore(row , v) { fore(seg , row) cout << seg << " "; cout << endl;}} #define showmatm(v) {cout<<#v<<endl; fore(row , v) { fore(seg , row) cout << seg.val() << " "; cout << endl;}} #else #define showp(p) #define show1(a) #define show2(a,b) #define show3(a,b,c) #define show4(a,b,c,d) #define show5(a,b,c,d,e) #define DEBUG_LINE #define showv(v) #define showv2(v) #define showvm(v) #define showvm2(v) #define showmat(v) #define showmatm(v) #endif #define overload5(a,b,c,d,e,f, ...) f #define show(...) overload5(__VA_ARGS__, show5, show4, show3, show2, show1)(__VA_ARGS__) struct HeavyLightDecomposition{ private: int _id; void _dfs_sz(int x){ size[x] = 1; for(int& y : e[x]){ if (y == par[x]){ if (sz(e[x])>=2 && y==e[x][0]){ swap(e[x][0], e[x][1]); }else{ continue; } } depth[y] = depth[x] + 1; par[y] = x; _dfs_sz(y); size[x] += size[y]; if (size[y] > size[e[x][0]]) swap(y, e[x][0]); } } void _dfs_hld(int x) { down[x] = _id++; for (int& y : e[x]) { if (y == par[x]) continue; nxt[y] = (y == e[x][0]) ? nxt[x] : y; _dfs_hld(y); } up[x] = _id; } // [u, v) vpii ascend(int a, int b) const { vpii res; while (nxt[a]!=nxt[b]){ res.emplace_back(down[a], down[nxt[a]]); a = par[nxt[a]]; } if (a != b) res.emplace_back(down[a], down[b] + 1); return res; } // (u, v] vpii descend(int a, int b) const { if (a == b) return {}; if (nxt[a] == nxt[b]) return {{down[a] + 1, down[b]}}; vpii res = descend(a, par[nxt[b]]); res.emplace_back(down[nxt[b]], down[b]); return res; } public: int n; vvi e; vi size, depth, down, up, nxt, par; HeavyLightDecomposition(const vvi& _e, int root = 0) : e(_e){ n = sz(e); _id = 0; size = vi(n); depth = vi(n); down = vi(n,-1); up = vi(n,-1); nxt = vi(n,root); par = vi(n,root); _dfs_sz(root); _dfs_hld(root); } pii idx(int i) const { return make_pair(down[i], up[i]); } template <typename F> void path_query(int u, int v, bool vertex, const F &f) { int l = lca(u, v); for (auto &&[a, b] : ascend(u, l)){ int s = a + 1, t = b; s > t ? f(t, s) : f(s, t); } if (vertex) f(down[l], down[l] + 1); for (auto &&[a, b] : descend(l, v)){ int s = a, t = b + 1; s > t ? f(t, s) : f(s, t); } } template <typename F> void subtree_query(int u, bool vertex, const F &f){ f(down[u] + int(!vertex), up[u]); } int lca(int a, int b){ while (nxt[a] != nxt[b]){ if (down[a] < down[b]) swap(a, b); a = par[nxt[a]]; } return depth[a] < depth[b] ? a : b; } int dist(int a, int b) { return depth[a] + depth[b] - depth[lca(a, b)] * 2; } }; // HeavyLightDecomposition // // pravate (コンストラクタの中のみで実行される) // _dfs_sz : 部分木のサイズを計算 // _dfs_hld : 親,オイラーツアーのidxを計算 // public // メンバ変数 // int n : 頂点数 // vvi e : 木の隣接頂点リスト // vi size[x] : xを根とする部分木のサイズ , depth[x] : xの深さ , down[x] up[x] : xの行きがけ(戻りがけ)順番号 // nxt[x] : xが属するheavyPathの最祖先の親(最祖先がrootの場合はroot) , par[x] : xの親 // メンバ関数 // HeavyLightDecomposition(const vvi& _e, int root = 0) // : eは木の隣接頂点リスト,rootは根 // vpii idx(int x) : return {down[x], up[x]} // void path_query(int u, int v, bool vertex, const F &f) // : u-vパス上でクエリfを実行,クエリ要素が頂点であるならvertex=trueとする // void subtree_query(int u, bool vertex, const F &f) // : uの部分木全体にクエリを実行 // int lca(a,b) : a,bのlca // int dist(int a, int b) : a-bパスの長さ ll op(ll a,ll b) { return max(a,b); } ll ee(){ return 0; } void solve(){ ll n,k,c; cin>>n>>k>>c; vl u(k),v(k),w(k),p(k); vpli ed(k); rep(i,k){ cin>>u[i]>>v[i]>>w[i]>>p[i]; u[i]--; v[i]--; ed[i] = {w[i], i}; } dsu d(n); sort(rng(ed)); ll sum = 0; ll mx = 0; vvi e(n); vi idx; fore(y, ed){ int a = u[y.se]; int b = v[y.se]; if (d.same(a,b)) continue; d.merge(a,b); sum += w[y.se]; e[a].pb(b); e[b].pb(a); idx.pb(y.se); chmax(mx, p[y.se]); } if (sum > c) retval(-1); HeavyLightDecomposition hld(e); segtree<ll,op,ee> sg(n); fore(y , idx){ int id = max(hld.down[u[y]], hld.down[v[y]]) - 1; sg.set(id, w[y]); } ll ans = mx; rep(i,k){ ll pro = 0; auto f = [&](ll a,ll b)->void{ chmax(pro, sg.prod(a-1,b-1)); }; int a = u[i]; int b = v[i]; hld.path_query(a,b,false,f); if (sum + (w[i] - pro) > c) continue; chmax(ans, p[i]); } out; return; } int main(){ ios::sync_with_stdio(false); cin.tie(0); int t = 1; //cin>>t; rep(i,t){ solve(); } return 0; }