結果
問題 | No.2523 Trick Flower |
ユーザー | hotman78 |
提出日時 | 2023-10-27 23:01:04 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 495 ms / 4,000 ms |
コード長 | 12,759 bytes |
コンパイル時間 | 3,815 ms |
コンパイル使用メモリ | 238,936 KB |
実行使用メモリ | 9,964 KB |
最終ジャッジ日時 | 2024-09-25 15:01:46 |
合計ジャッジ時間 | 12,034 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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 4 ms
5,376 KB |
testcase_09 | AC | 4 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 4 ms
5,376 KB |
testcase_14 | AC | 4 ms
5,376 KB |
testcase_15 | AC | 458 ms
9,020 KB |
testcase_16 | AC | 452 ms
9,140 KB |
testcase_17 | AC | 269 ms
9,964 KB |
testcase_18 | AC | 136 ms
9,148 KB |
testcase_19 | AC | 495 ms
9,456 KB |
testcase_20 | AC | 483 ms
9,580 KB |
testcase_21 | AC | 491 ms
9,572 KB |
testcase_22 | AC | 488 ms
9,456 KB |
testcase_23 | AC | 495 ms
9,448 KB |
testcase_24 | AC | 262 ms
7,004 KB |
testcase_25 | AC | 453 ms
8,804 KB |
testcase_26 | AC | 410 ms
8,536 KB |
testcase_27 | AC | 461 ms
9,092 KB |
testcase_28 | AC | 366 ms
8,084 KB |
testcase_29 | AC | 67 ms
5,376 KB |
testcase_30 | AC | 314 ms
7,624 KB |
testcase_31 | AC | 16 ms
5,376 KB |
testcase_32 | AC | 173 ms
5,828 KB |
testcase_33 | AC | 480 ms
9,380 KB |
ソースコード
// author: hotman78 // date: 2023/10/27-23:00:45 // --- begin raw code ----------------- // #include"cpplib/util/template.hpp" // #include"cpplib/math/binary_search.hpp" // #include"cpplib/dsu/union_find.hpp" // // int main(){ // lint n; // cin>>n; // vector<lint> a(n),b(n),c(n); // rep(i,n)cin>>a[i]; // rep(i,n)cin>>b[i]; // rep(i,n)cin>>c[i]; // rep(i,n)c[i]--; // vec in_cycle(n,true); // { // stack<lint> s; // vec used(n); // rep(i,n){ // used[c[i]]++; // } // rep(i,n)if(used[i]==0)s.push(i); // while(!s.empty()){ // lint v=s.top();s.pop(); // in_cycle[v]=false; // used[c[v]]--; // if(used[c[v]]==0)s.push(c[v]); // } // } // UF uf(n); // rep(i,n){ // if(in_cycle[i])uf.unite(i,c[i]); // } // auto f=[&](lint x){ // stack<lint> s; // vec used(n); // vector<__int128_t> demand(n); // rep(i,n)used[c[i]]++; // rep(i,n)if(used[i]==0)s.push(i); // while(!s.empty()){ // lint v=s.top();s.pop(); // if(c[v]==v){ // if(demand[v]+__int128_t(b[v])*x-a[v]>0){ // return false; // } // continue; // } // used[c[v]]--; // if(used[c[v]]==0){ // // assert(!in_cycle[c[v]]); // demand[c[v]]+=max<__int128_t>(0LL,__int128_t(b[v])*x+demand[v]-a[v]); // s.push(c[v]); // }else{ // // assert(in_cycle[c[v]]); // demand[uf.root(c[v])]+=max<__int128_t>(0LL,__int128_t(b[v])*x+demand[v]-a[v]); // } // } // rep(i,n){ // if(in_cycle[i]){ // demand[uf.root(i)]+=__int128_t(b[i])*x-a[i]; // } // } // rep(i,n){ // if(in_cycle[i]){ // // cerr<<i<<":"<<demand[uf.root(i)]<<endl; // if(demand[uf.root(i)]>0){ // return false; // } // } // } // return true; // }; // // cerr<<f(3)<<endl; // cout<<bs(0LL,1LL<<60,f)<<endl; // } // --- end raw code ----------------- #line 2 "cpplib/util/template.hpp" #ifdef LOCAL #define _GLIBCXX_DEBUG #endif #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #include <bits/stdc++.h> using namespace std; #line 1 "cpplib/util/ioutil.hpp" // template <class Head,class... Args> // std::ostream& output(std::ostream& out,const Head& head,const Args&... args){ // out>>head; // return output(head,args...); // } // template <class Head> // std::ostream& output(std::ostream& out,const Head& head){ // out>>head; // return out; // } template <typename T, typename E> std::ostream &operator<<(std::ostream &out, std::pair<T, E> v) { out << "(" << v.first << "," << v.second << ")"; return out; } // template <class... Args> // ostream& operator<<(ostream& out,std::tuple<Args...>v){ // std::apply(output,v); // return out; // } #line 11 "cpplib/util/template.hpp" struct __INIT__ { __INIT__() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } } __INIT__; typedef long long lint; constexpr long long INF = 1LL << 60; constexpr int IINF = 1 << 30; constexpr double EPS = 1e-10; #ifndef REACTIVE #define endl '\n'; #endif typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template <typename T> using V = vector<T>; template <typename T> using VV = V<V<T>>; #define output(t) \ { \ bool f = 0; \ for (auto val : (t)) { \ cout << (f ? " " : "") << val; \ f = 1; \ } \ cout << endl; \ } #define output2(t) \ { \ for (auto i : t) \ output(i); \ } #define debug(t) \ { \ bool f = 0; \ for (auto i : t) { \ cerr << (f ? " " : "") << i; \ f = 1; \ } \ cerr << endl; \ } #define debug2(t) \ { \ for (auto i : t) \ debug(i); \ } #define loop(n) for (long long _ = 0; _ < (long long)(n); ++_) #define _overload4(_1, _2, _3, _4, name, ...) name #define __rep(i, a) repi(i, 0, a, 1) #define _rep(i, a, b) repi(i, a, b, 1) #define repi(i, a, b, c) \ for (long long i = (long long)(a); i < (long long)(b); i += c) #define rep(...) _overload4(__VA_ARGS__, repi, _rep, __rep)(__VA_ARGS__) #define _overload3_rev(_1, _2, _3, name, ...) name #define _rep_rev(i, a) repi_rev(i, 0, a) #define repi_rev(i, a, b) \ for (long long i = (long long)(b)-1; i >= (long long)(a); --i) #define rrep(...) _overload3_rev(__VA_ARGS__, repi_rev, _rep_rev)(__VA_ARGS__) #define all(n) begin(n), end(n) template <typename T, typename E> bool chmin(T &s, const E &t) { bool res = s > t; s = min<T>(s, t); return res; } template <typename T, typename E> bool chmax(T &s, const E &t) { bool res = s < t; s = max<T>(s, t); return res; } const vector<lint> dx = {1, 0, -1, 0, 1, 1, -1, -1}; const vector<lint> dy = {0, 1, 0, -1, 1, -1, 1, -1}; #define SUM(v) accumulate(all(v), 0LL) #if __cplusplus >= 201703L template <typename T, typename... Args> auto make_vector(T x, int arg, Args... args) { if constexpr (sizeof...(args) == 0) return vector<T>(arg, x); else return vector(arg, make_vector<T>(x, args...)); } #endif #define extrep(v, ...) for (auto v : __MAKE_MAT__({__VA_ARGS__})) #define bit(n, a) ((n >> a) & 1) vector<vector<long long>> __MAKE_MAT__(vector<long long> v) { if (v.empty()) return vector<vector<long long>>(1, vector<long long>()); long long n = v.back(); v.pop_back(); vector<vector<long long>> ret; vector<vector<long long>> tmp = __MAKE_MAT__(v); for (auto e : tmp) for (long long i = 0; i < n; ++i) { ret.push_back(e); ret.back().push_back(i); } return ret; } using graph = vector<vector<int>>; template <typename T> using graph_w = vector<vector<pair<int, T>>>; #if __cplusplus >= 201703L constexpr inline long long powll(long long a, long long b) { long long res = 1; while (b--) res *= a; return res; } #endif template <typename T, typename E> pair<T, E> &operator+=(pair<T, E> &s, const pair<T, E> &t) { s.first += t.first; s.second += t.second; return s; } template <typename T, typename E> pair<T, E> &operator-=(pair<T, E> &s, const pair<T, E> &t) { s.first -= t.first; s.second -= t.second; return s; } template <typename T, typename E> pair<T, E> operator+(const pair<T, E> &s, const pair<T, E> &t) { auto res = s; return res += t; } template <typename T, typename E> pair<T, E> operator-(const pair<T, E> &s, const pair<T, E> &t) { auto res = s; return res -= t; } #define BEGIN_STACK_EXTEND(size) \ void *stack_extend_memory_ = malloc(size); \ void *stack_extend_origin_memory_; \ char *stack_extend_dummy_memory_ = (char *)alloca( \ (1 + (int)(((long long)stack_extend_memory_) & 127)) * 16); \ *stack_extend_dummy_memory_ = 0; \ asm volatile("mov %%rsp, %%rbx\nmov %%rax, %%rsp" \ : "=b"(stack_extend_origin_memory_) \ : "a"((char *)stack_extend_memory_ + (size)-1024)); #define END_STACK_EXTEND \ asm volatile("mov %%rax, %%rsp" ::"a"(stack_extend_origin_memory_)); \ free(stack_extend_memory_); int floor_pow(int n) { return n ? 31 - __builtin_clz(n) : 0; } #line 3 "cpplib/math/binary_search.hpp" /** * @brief 二分探索 */ template <typename T = long long, typename F> T bs(T ok, T ng, F func) { while (abs(ok - ng) > 1) { T mid = (ok + ng) / 2; if (func(mid)) ok = mid; else ng = mid; } return ok; } #line 1 "cpplib/dsu/union_find.hpp" /** * @brief Union Find * @see * https://ja.wikipedia.org/wiki/%E7%B4%A0%E9%9B%86%E5%90%88%E3%83%87%E3%83%BC%E3%82%BF%E6%A7%8B%E9%80%A0 */ class UF { public: vector<int> data; int sz; public: UF(int sz) : sz(sz) { data.resize(sz, -1); } bool unite(int x, int y) { x = root(x); y = root(y); if (x == y) return 0; if (data[x] > data[y]) swap(x, y); data[x] += data[y]; data[y] = x; sz--; return 1; } inline int root(int x) { return data[x] < 0 ? x : data[x] = root(data[x]); } inline bool same(int x, int y) { return root(x) == root(y); } inline int size() { return sz; } inline int size(int x) { return -data[root(x)]; } }; #line 4 "main.cpp" int main() { lint n; cin >> n; vector<lint> a(n), b(n), c(n); rep(i, n) cin >> a[i]; rep(i, n) cin >> b[i]; rep(i, n) cin >> c[i]; rep(i, n) c[i]--; vec in_cycle(n, true); { stack<lint> s; vec used(n); rep(i, n) { used[c[i]]++; } rep(i, n) if (used[i] == 0) s.push(i); while (!s.empty()) { lint v = s.top(); s.pop(); in_cycle[v] = false; used[c[v]]--; if (used[c[v]] == 0) s.push(c[v]); } } UF uf(n); rep(i, n) { if (in_cycle[i]) uf.unite(i, c[i]); } auto f = [&](lint x) { stack<lint> s; vec used(n); vector<__int128_t> demand(n); rep(i, n) used[c[i]]++; rep(i, n) if (used[i] == 0) s.push(i); while (!s.empty()) { lint v = s.top(); s.pop(); if (c[v] == v) { if (demand[v] + __int128_t(b[v]) * x - a[v] > 0) { return false; } continue; } used[c[v]]--; if (used[c[v]] == 0) { // assert(!in_cycle[c[v]]); demand[c[v]] += max<__int128_t>(0LL, __int128_t(b[v]) * x + demand[v] - a[v]); s.push(c[v]); } else { // assert(in_cycle[c[v]]); demand[uf.root(c[v])] += max<__int128_t>( 0LL, __int128_t(b[v]) * x + demand[v] - a[v]); } } rep(i, n) { if (in_cycle[i]) { demand[uf.root(i)] += __int128_t(b[i]) * x - a[i]; } } rep(i, n) { if (in_cycle[i]) { // cerr<<i<<":"<<demand[uf.root(i)]<<endl; if (demand[uf.root(i)] > 0) { return false; } } } return true; }; // cerr<<f(3)<<endl; cout << bs(0LL, 1LL << 60, f) << endl; }