結果
問題 | No.2439 Fragile Apple Tree |
ユーザー | 👑 potato167 |
提出日時 | 2023-08-16 01:20:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,381 ms / 10,000 ms |
コード長 | 7,589 bytes |
コンパイル時間 | 2,679 ms |
コンパイル使用メモリ | 218,296 KB |
実行使用メモリ | 128,592 KB |
最終ジャッジ日時 | 2024-11-28 13:19:15 |
合計ジャッジ時間 | 36,702 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 | 1,030 ms
56,616 KB |
testcase_01 | AC | 1,950 ms
75,196 KB |
testcase_02 | AC | 1,840 ms
75,316 KB |
testcase_03 | AC | 782 ms
128,592 KB |
testcase_04 | AC | 898 ms
128,544 KB |
testcase_05 | AC | 1,676 ms
75,200 KB |
testcase_06 | AC | 1,834 ms
75,324 KB |
testcase_07 | AC | 2,283 ms
74,800 KB |
testcase_08 | AC | 2,381 ms
74,820 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 2 ms
5,248 KB |
testcase_12 | AC | 2 ms
5,248 KB |
testcase_13 | AC | 2 ms
5,248 KB |
testcase_14 | AC | 2,307 ms
72,152 KB |
testcase_15 | AC | 1,303 ms
75,152 KB |
testcase_16 | AC | 1,817 ms
75,232 KB |
testcase_17 | AC | 1,778 ms
75,192 KB |
testcase_18 | AC | 739 ms
56,800 KB |
testcase_19 | AC | 614 ms
30,020 KB |
testcase_20 | AC | 269 ms
25,812 KB |
testcase_21 | AC | 76 ms
5,248 KB |
testcase_22 | AC | 1,020 ms
40,684 KB |
testcase_23 | AC | 455 ms
21,140 KB |
testcase_24 | AC | 555 ms
28,068 KB |
testcase_25 | AC | 514 ms
48,176 KB |
testcase_26 | AC | 631 ms
53,880 KB |
testcase_27 | AC | 461 ms
38,644 KB |
testcase_28 | AC | 2 ms
5,248 KB |
testcase_29 | AC | 2 ms
5,248 KB |
testcase_30 | AC | 2 ms
5,248 KB |
testcase_31 | AC | 1,089 ms
72,360 KB |
testcase_32 | AC | 1,098 ms
72,352 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; using ll = long long; #define all(p) p.begin(),p.end() #define rep(i,a,b) for(int i=(int)a;i<(int)b;i++) const int mod=998244353; namespace atcoder { namespace internal { // @param n `0 <= n` // @return minimum non-negative `x` s.t. `n <= 2**x` int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } // @param n `1 <= n` // @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0` int bsf(unsigned int n) { #ifdef _MSC_VER unsigned long index; _BitScanForward(&index, n); return index; #else return __builtin_ctz(n); #endif } } // namespace internal template <class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct lazy_segtree { public: lazy_segtree() : lazy_segtree(0) {} lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {} lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) { log = internal::ceil_pow2(_n); size = 1 << log; d = std::vector<S>(2 * size, e()); lz = std::vector<F>(size, id()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); return d[p]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); if (l == r) return e(); l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push(r >> i); } S sml = e(), smr = e(); while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } void apply(int p, F f) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } void apply(int l, int r, F f) { assert(0 <= l && l <= r && r <= _n); if (l == r) return; l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push((r - 1) >> i); } { int l2 = l, r2 = r; while (l < r) { if (l & 1) all_apply(l++, f); if (r & 1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for (int i = 1; i <= log; i++) { if (((l >> i) << i) != l) update(l >> i); if (((r >> i) << i) != r) update((r - 1) >> i); } } template <bool (*g)(S)> int max_right(int l) { return max_right(l, [](S x) { return g(x); }); } template <class G> int max_right(int l, G g) { assert(0 <= l && l <= _n); assert(g(e())); if (l == _n) return _n; l += size; for (int i = log; i >= 1; i--) push(l >> i); S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!g(op(sm, d[l]))) { while (l < size) { push(l); l = (2 * l); if (g(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template <bool (*g)(S)> int min_left(int r) { return min_left(r, [](S x) { return g(x); }); } template <class G> int min_left(int r, G g) { assert(0 <= r && r <= _n); assert(g(e())); if (r == 0) return 0; r += size; for (int i = log; i >= 1; i--) push((r - 1) >> i); S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!g(op(d[r], sm))) { while (r < size) { push(r); r = (2 * r + 1); if (g(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector<S> d; std::vector<F> lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) lz[k] = composition(f, lz[k]); } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } }; } // namespace atcoder using namespace atcoder; const ll INF=1e18; using lazy_S=ll; using lazy_F=ll; lazy_S lazy_op(lazy_S l, lazy_S r) { return min(l,r); } lazy_S lazy_e() { return INF; } lazy_S mapping(lazy_F l, lazy_S r) { return r+l; } //l(r(x)) lazy_F composition(lazy_F l, lazy_F r) { return l+r; } lazy_F lazy_id(){return 0;} #define lazy_calc lazy_S,lazy_op,lazy_e,lazy_F,mapping,composition,lazy_id bool f(lazy_S x){return x>0;} int main(){ int N,Q; cin>>N>>Q; vector<int> A(N-1),B(N-1); vector<ll> C(N-1); vector<vector<int>> G(N); rep(i,0,N-1){ cin>>A[i]>>B[i]>>C[i]; A[i]--,B[i]--; G[A[i]].push_back(B[i]); G[B[i]].push_back(A[i]); } vector<int> order={0},depth(N),wei(N),pare(N,-1); pare[0]=-2; rep(i,0,N){ int a=order[i]; for(auto b:G[a]){ if(pare[b]==-1){ pare[b]=a; order.push_back(b); depth[b]=depth[a]+1; } } } order.clear(); vector<vector<int>> H(N); rep(i,0,N) for(auto x:G[i]) if(pare[x]==i) H[i].push_back(x); swap(H,G); vector<int> rev(N),to(N); rep(i,0,N){ int a=order[N-i-1]; for(auto b:G[a]){ wei[a]+=wei[b]; } wei[a]++; } auto dfs=[&](auto self,int ind,int top)->void{ rev[ind]=order.size(); order.push_back(ind); to[ind]=top; if(G[ind].empty()) return; int tmp=G[ind][0]; for(auto x:G[ind]) if(wei[tmp]<wei[x]) tmp=x; self(self,tmp,top); for(auto x:G[ind]) if(x!=tmp) self(self,x,x); }; dfs(dfs,0,0); vector<ll> n_C(N),V(N); rep(i,0,N-1){ if(depth[A[i]]>depth[B[i]]) swap(A[i],B[i]); n_C[B[i]]=C[i]; } swap(n_C,C); C[0]=INF; lazy_segtree<lazy_calc> seg1(N),seg2(N); rep(i,0,N){ int a=order[i]; seg1.set(i,C[a]); seg2.set(i,wei[a]); } rep(rp,0,Q){ int t; cin>>t; if(t==1){ int u; ll x; cin>>u>>x; u--; int tmp=-1; while(u!=-2){ int a=rev[to[u]]; int b=rev[u]; seg1.apply(a,b+1,-x); int c=seg1.min_left<f>(b+1); if(a<c&&tmp==-1) tmp=c-1; u=pare[to[u]]; } if(tmp!=-1){ u=order[tmp]; ll v=C[u]-seg1.get(tmp); tmp=seg2.get(tmp); u=pare[u]; while(u!=-2){ int a=rev[to[u]]; int b=rev[u]; seg1.apply(a,b+1,v); seg2.apply(a,b+1,-tmp); u=pare[to[u]]; } } } if(t==2){ cout<<seg2.get(0)<<"\n"; } } }