結果
問題 | No.1955 Not Prime |
ユーザー | 👑 Nachia |
提出日時 | 2022-05-21 15:43:43 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 83 ms / 2,000 ms |
コード長 | 4,360 bytes |
コンパイル時間 | 1,355 ms |
コンパイル使用メモリ | 103,288 KB |
実行使用メモリ | 20,900 KB |
最終ジャッジ日時 | 2024-09-20 11:52:01 |
合計ジャッジ時間 | 3,159 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 3 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 6 ms
5,376 KB |
testcase_07 | AC | 53 ms
5,440 KB |
testcase_08 | AC | 44 ms
5,376 KB |
testcase_09 | AC | 80 ms
5,376 KB |
testcase_10 | AC | 77 ms
5,376 KB |
testcase_11 | AC | 61 ms
20,900 KB |
testcase_12 | AC | 25 ms
5,376 KB |
testcase_13 | AC | 82 ms
5,576 KB |
testcase_14 | AC | 16 ms
5,376 KB |
testcase_15 | AC | 15 ms
5,376 KB |
testcase_16 | AC | 35 ms
5,376 KB |
testcase_17 | AC | 69 ms
7,364 KB |
testcase_18 | AC | 83 ms
5,448 KB |
testcase_19 | AC | 79 ms
6,040 KB |
testcase_20 | AC | 4 ms
5,376 KB |
testcase_21 | AC | 28 ms
5,376 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 3 ms
5,376 KB |
testcase_25 | AC | 3 ms
5,376 KB |
ソースコード
#include <iostream> #include <string> #include <vector> #include <algorithm> #include <array> #include <atcoder/modint> #include <atcoder/scc> #include <cassert> namespace nachia{ namespace prime_sieve_explicit_internal{ std::vector<bool> isprime = { false }; // a[x] := isprime(2x+1) void CalcIsPrime(int z){ if((int)isprime.size() *2+1 < z+1){ int new_z = isprime.size(); while(new_z*2+1 < z+1) new_z *= 2; z = new_z-1; isprime.resize(z+1, true); for(int i=1; i*(i+1)*2<=z; i++) if(isprime[i]){ for(int j=i*(i+1)*2; j<=z; j+=i*2+1) isprime[j] = false; } } } std::vector<int> prime_list = {2}; int prime_list_max = 0; void CalcPrimeList(int z){ while((int)prime_list.size() < z){ if((int)isprime.size() <= prime_list_max + 1) CalcIsPrime(prime_list_max + 1); for(int p=prime_list_max+1; p<(int)isprime.size(); p++){ if(isprime[p]) prime_list.push_back(p*2+1); } prime_list_max = isprime.size() - 1; } } void CalcPrimeListUntil(int z){ if(prime_list_max < z){ CalcIsPrime(z); for(int p=prime_list_max+1; p<(int)isprime.size(); p++){ if(isprime[p]) prime_list.push_back(p*2+1); } prime_list_max = isprime.size() - 1; } } } bool IsprimeExplicit(int n){ using namespace prime_sieve_explicit_internal; if(n == 2) return true; if(n % 2 == 0) return false; CalcIsPrime(n); return isprime[(n-1)/2]; } int NthPrimeExplicit(int n){ using namespace prime_sieve_explicit_internal; CalcPrimeList(n); return prime_list[n]; } int PrimeCountingExplicit(int n){ using namespace prime_sieve_explicit_internal; if(n < 2) return 0; CalcPrimeListUntil(n); auto res = ::std::upper_bound(prime_list.begin(), prime_list.end(), n) - prime_list.begin(); return (int)res; } // [l, r) ::std::vector<bool> SegmentedSieveExplicit(long long l, long long r){ assert(0 <= l); assert(l <= r); long long d = r - l; if(d == 0) return {}; ::std::vector<bool> res(d, true); for(long long p=2; p*p<=r; p++) if(IsprimeExplicit(p)){ long long il = (l+p-1)/p, ir = (r+p-1)/p; if(il <= p) il = p; for(long long i=il; i<ir; i++) res[i*p-l] = false; } if(l < 2) for(long long p=l; p<2 && p<r; p++) res[l-p] = false; return res; } } using namespace std; using i32 = int32_t; using u32 = uint32_t; using i64 = int64_t; using u64 = uint64_t; #define rep(i,n) for(int i=0; i<(int)(n); i++) const i64 INF = 1001001001001001001; using modint = atcoder::static_modint<998244353>; int main(){ int N; cin >> N; vector<string> A(N); vector<string> B(N); rep(i,N) cin >> A[i] >> B[i]; atcoder::internal::scc_graph scc(N*2); rep(i,N) rep(j,N){ bool prohibit_pp = false; prohibit_pp = prohibit_pp || (B[j].back() != 0 && nachia::IsprimeExplicit(stoi(A[i]+B[j]))); prohibit_pp = prohibit_pp || (B[i].back() != 0 && nachia::IsprimeExplicit(stoi(A[j]+B[i]))); if(prohibit_pp){ scc.add_edge(i, N+j); scc.add_edge(j, N+i); } } rep(i,N) rep(j,N){ bool prohibit_nn = false; prohibit_nn = prohibit_nn || (A[j].back() != 0 && nachia::IsprimeExplicit(stoi(B[i]+A[j]))); prohibit_nn = prohibit_nn || (A[i].back() != 0 && nachia::IsprimeExplicit(stoi(B[j]+A[i]))); if(prohibit_nn){ scc.add_edge(N+i, j); scc.add_edge(N+j, i); } } rep(i,N) rep(j,N) if(i != j){ bool prohibit_pn = false; prohibit_pn = prohibit_pn || (A[j].back() != 0 && nachia::IsprimeExplicit(stoi(A[i]+A[j]))); prohibit_pn = prohibit_pn || (B[i].back() != 0 && nachia::IsprimeExplicit(stoi(B[j]+B[i]))); if(prohibit_pn){ scc.add_edge(i, j); scc.add_edge(N+j, N+i); } } auto G = scc.scc_ids().second; bool ans = true; rep(i,N) if(G[i] == G[N+i]) ans = false; cout << (ans ? "Yes\n" : "No\n"); return 0; } struct ios_do_not_sync{ ios_do_not_sync(){ std::ios::sync_with_stdio(false); std::cin.tie(nullptr); } } ios_do_not_sync_instance;