結果
問題 | No.2497 GCD of LCMs |
ユーザー | pitP |
提出日時 | 2023-10-06 23:14:48 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,796 bytes |
コンパイル時間 | 5,008 ms |
コンパイル使用メモリ | 284,140 KB |
実行使用メモリ | 13,760 KB |
最終ジャッジ日時 | 2024-07-26 16:58:39 |
合計ジャッジ時間 | 8,518 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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
13,760 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 3 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 277 ms
6,940 KB |
testcase_07 | TLE | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } typedef long long ll; typedef vector<vector<int>> Graph; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define rep(i,n) for (int i = 0;i < (int)(n); i++) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define my_sort(x) sort(x.begin(), x.end()) #define my_max(x) *max_element(all(x)) #define my_min(x) *min_element(all(x)) template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const int INF = (1<<30) - 1; const ll LINF = (1LL<<62) - 1; const int MOD = 998244353; const int MOD2 = 1e9+7; const double PI = acos(-1); vector<int> di = {1,0,-1,0}; vector<int> dj = {0,1,0,-1}; #ifdef LOCAL # include <debug_print.hpp> # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif vector<pll> prime_factorize(ll n){ vector<pll> res; for(ll i = 2; i * i <= n ; i++){ if(n % i != 0ll)continue; ll tmp = 0ll; while(n % i == 0ll){ tmp++; n /= i; } res.push_back(make_pair(i,tmp)); } if (n != 1ll) res.push_back(make_pair(n,1ll)); return res; } using mint = modint998244353; int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int N,M; cin >> N >> M; vector<bool> visited(N, false); vector<int> A(N); rep(i,N) cin >> A[i]; // set<int> st; rep(i,N){ auto res = prime_factorize(A[i]); for(auto [p, e] : res){ st.insert(p); } } map<int,int> p2idx, idx2p; int cnt = 0; for(auto itr = st.begin(); itr != st.end(); itr++){ idx2p[cnt] = *itr; p2idx[*itr] = cnt++; } int L = st.size(); vector<vector<pii>> buf(N); rep(i,N)rep(j,L){ int e = 0; int v = A[i]; while((v % idx2p[j]) == 0){ v /= idx2p[j]; e++; } if(e)buf[i].push_back(make_pair(j, e)); } debug(buf); // Graph g(N); rep(_,M){ int U,V; cin >> U >> V; g[U - 1].push_back(V - 1); g[V - 1].push_back(U - 1); } vector<int> ans(L, INF); vector<int> tmp(L, 0); auto dfs = [&](auto dfs, int now, int goal) -> void { if (now == goal){ rep(j,L) chmin(ans[j], tmp[j]); return; } for(auto nxt : g[now]){ if (visited[nxt]) continue; vector<pii> org; for(auto [j, e] : buf[nxt]){ org.push_back(make_pair(j, tmp[j])); chmax(tmp[j], e); } visited[nxt] = true; dfs(dfs, nxt, goal); visited[nxt] = false; for(auto [j, e] : org){ tmp[j] = e; } } }; rep(i,N){ rep(j,L)ans[j] = INF; visited[0] = true; for(auto [j, e] : buf[0]){ chmax(tmp[j], e); } dfs(dfs, 0, i); visited[0] = false; mint dot = mint(1); rep(j,L)rep(_,ans[j]) dot *= idx2p[j]; cout << dot << endl; } }