結果
問題 | No.2724 Coprime Game 1 |
ユーザー |
👑 ![]() |
提出日時 | 2024-04-12 21:32:55 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 66 ms / 2,000 ms |
コード長 | 3,702 bytes |
コンパイル時間 | 1,380 ms |
コンパイル使用メモリ | 105,468 KB |
最終ジャッジ日時 | 2025-02-21 00:08:19 |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 7 |
ソースコード
#ifdef NACHIA#define _GLIBCXX_DEBUG#else#define NDEBUG#endif#include <iostream>#include <string>#include <vector>#include <algorithm>#include <utility>#include <queue>#include <array>#include <cmath>#include <atcoder/modint>#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 * 2 + 10);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;}} // namespace nachiausing i64 = long long;using u64 = unsigned long long;#define rep(i,n) for(int i=0; i<int(n); i++)#define repr(i,n) for(int i=int(n)-1; i>=0; i--)const i64 INF = 1001001001001001001;const char* yn(bool x){ return x ? "Yes" : "No"; }template<typename A> void chmin(A& l, const A& r){ if(r < l) l = r; }template<typename A> void chmax(A& l, const A& r){ if(l < r) l = r; }template<typename A> using nega_queue = std::priority_queue<A,std::vector<A>,std::greater<A>>;using Modint = atcoder::static_modint<998244353>;//#include "nachia/vec.hpp"using namespace std;void unit(){int N; cin >> N;if(nachia::IsprimeExplicit(N)){ cout << "P\n"; return; }int n = N/2+1;int c = N - 1 - nachia::PrimeCountingExplicit(N-1) + nachia::PrimeCountingExplicit(n-1);cout << (c%2 == 0 ? "K\n" : "P\n");}void testcase(){int T; cin >> T;rep(t,T) unit();}int main(){ios::sync_with_stdio(false); cin.tie(nullptr);#ifdef NACHIAint T; cin >> T; for(int t=0; t<T; T!=++t?(cout<<'\n'),0:0)#endiftestcase();return 0;}