結果
問題 | No.2523 Trick Flower |
ユーザー | apricity |
提出日時 | 2023-12-15 12:20:36 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,496 bytes |
コンパイル時間 | 1,427 ms |
コンパイル使用メモリ | 140,976 KB |
実行使用メモリ | 10,872 KB |
最終ジャッジ日時 | 2024-09-27 06:14:43 |
合計ジャッジ時間 | 3,310 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 39 ms
10,872 KB |
testcase_18 | AC | 35 ms
9,472 KB |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | AC | 33 ms
9,372 KB |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 8 ms
6,944 KB |
testcase_30 | WA | - |
testcase_31 | AC | 3 ms
6,944 KB |
testcase_32 | WA | - |
testcase_33 | WA | - |
ソースコード
#include<iostream> #include<string> #include<vector> #include<algorithm> #include<numeric> #include<cmath> #include<utility> #include<tuple> #include<cstdint> #include<cstdio> #include<iomanip> #include<map> #include<queue> #include<set> #include<stack> #include<deque> #include<unordered_map> #include<unordered_set> #include<bitset> #include<cctype> #include<chrono> #include<random> #include<cassert> #include<cstddef> #include<iterator> #include<string_view> #include<type_traits> #ifdef LOCAL # include "debug_print.hpp" # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif using namespace std; #define rep(i,n) for(int i=0; i<(n); i++) #define rrep(i,n) for(int i=(n)-1; i>=0; i--) #define FOR(i,a,b) for(int i=(a); i<(b); i++) #define RFOR(i,a,b) for(int i=(b-1); i>=(a); i--) #define ALL(v) v.begin(), v.end() #define RALL(v) v.rbegin(), v.rend() #define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() ); #define pb push_back using ll = long long; using D = double; using LD = long double; using P = pair<int, int>; template<typename T> using PQ = priority_queue<T,vector<T>>; template<typename T> using minPQ = priority_queue<T, vector<T>, greater<T>>; 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; } void yesno(bool flag) {cout << (flag?"Yes":"No") << "\n";} template<typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << p.first << " " << p.second; return os; } template<typename T, typename U> istream &operator>>(istream &is, pair<T, U> &p) { is >> p.first >> p.second; return is; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &v) { int s = (int)v.size(); for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i]; return os; } template<typename T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; } void in() {} template<typename T, class... U> void in(T &t, U &...u) { cin >> t; in(u...); } void out() { cout << "\n"; } template<typename T, class... U, char sep = ' '> void out(const T &t, const U &...u) { cout << t; if (sizeof...(u)) cout << sep; out(u...); } void outr() {} template<typename T, class... U, char sep = ' '> void outr(const T &t, const U &...u) { cout << t; outr(u...); } int main(){ ios_base::sync_with_stdio(false); cin.tie(nullptr); int n; in(n); vector<ll> a(n), b(n), c(n); in(a,b,c); rep(i,n) c[i]--; vector<int> seen(n,false); vector<int> loop(n,-1); vector<int> ord; vector<int> ind(n); vector<int> par(n); rep(i,n) par[i] = i; vector<ll> sa_lp(n); vector<ll> sb_lp(n); rep(i,n) ind[c[i]]++; rep(i,n){ if(seen[i]) continue; int now = i; do{ seen[now] = true; now = c[now]; }while(!seen[now]); int piv = now; while(loop[now] == -1){ sa_lp[piv] += a[now]; sb_lp[piv] += b[now]; par[now] = piv; loop[now] = 1; now = c[now]; } now = i; while(loop[now] == -1){ loop[now] = 0; now = c[now]; } } rep(i,n) if(loop[i] == 0) sa_lp[i] = a[i], sb_lp[i] = b[i]; queue<int> q; rep(i,n) if(ind[i] == 0) q.push(i); while(q.size()){ int x = q.front(); q.pop(); ord.pb(x); int y = c[x]; if(loop[y]){ ord.pb(par[y]); } else{ ind[y]--; if(ind[y] == 0) q.push(y); } } // out(loop); // out(ord); ll sa = accumulate(ALL(a),0LL); ll sb = accumulate(ALL(b),0LL); ll ok = 0, ng = sa/sb+1; vector<ll> f(n); while(ng-ok > 1){ ll mid = (ok+ng)/2; f = sa_lp; int chk = 1; for(int x : ord){ if(!chk) break; if(loop[x] == 1) continue; if(f[x] < mid*sb_lp[x]){ int y = par[c[x]]; f[y] -= mid*sb_lp[x]-f[x]; if(f[y] < 0) { chk = 0; break; } } } rep(i,n) if(loop[i] == 1){ if(f[par[i]] < mid*sb_lp[par[i]]) chk = 0; } if(chk) ok = mid; else ng = mid; } out(ok); }