#892927 (C++17) No.732 3PrimeCounting

• 問題: No.732 3PrimeCounting
• ユーザー: batasanblog
• 提出日時: 2023-07-18 22:31:55
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 612 ms / 3,000 ms
• コード長: 2,040 bytes
• コンパイル時間: 4,538 ms
• コンパイル使用メモリ: 263,004 KB
• 実行使用メモリ: 5,888 KB
• 最終ジャッジ日時: 2024-09-18 21:54:53
• 合計ジャッジ時間: 12,149 ms
• ジャッジサーバーID （参考情報）: judge1 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,248 KB
testcase_02	AC	2 ms; 5,248 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	2 ms; 5,376 KB
testcase_07	AC	2 ms; 5,376 KB
testcase_08	AC	2 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	2 ms; 5,376 KB
testcase_11	AC	2 ms; 5,376 KB
testcase_12	AC	2 ms; 5,376 KB
testcase_13	AC	2 ms; 5,376 KB
testcase_14	AC	2 ms; 5,376 KB
testcase_15	AC	2 ms; 5,376 KB
testcase_16	AC	2 ms; 5,376 KB
testcase_17	AC	2 ms; 5,376 KB
testcase_18	AC	2 ms; 5,376 KB
testcase_19	AC	2 ms; 5,376 KB
testcase_20	AC	2 ms; 5,376 KB
testcase_21	AC	2 ms; 5,376 KB
testcase_22	AC	3 ms; 5,376 KB
testcase_23	AC	2 ms; 5,376 KB
testcase_24	AC	2 ms; 5,376 KB
testcase_25	AC	4 ms; 5,376 KB
testcase_26	AC	3 ms; 5,376 KB
testcase_27	AC	2 ms; 5,376 KB
testcase_28	AC	2 ms; 5,376 KB
testcase_29	AC	3 ms; 5,376 KB
testcase_30	AC	3 ms; 5,376 KB
testcase_31	AC	2 ms; 5,376 KB
testcase_32	AC	3 ms; 5,376 KB
testcase_33	AC	3 ms; 5,376 KB
testcase_34	AC	3 ms; 5,376 KB
testcase_35	AC	2 ms; 5,376 KB
testcase_36	AC	3 ms; 5,376 KB
testcase_37	AC	2 ms; 5,376 KB
testcase_38	AC	2 ms; 5,376 KB
testcase_39	AC	3 ms; 5,376 KB
testcase_40	AC	2 ms; 5,376 KB
testcase_41	AC	3 ms; 5,376 KB
testcase_42	AC	3 ms; 5,376 KB
testcase_43	AC	3 ms; 5,376 KB
testcase_44	AC	2 ms; 5,376 KB
testcase_45	AC	2 ms; 5,376 KB
testcase_46	AC	2 ms; 5,376 KB
testcase_47	AC	2 ms; 5,376 KB
testcase_48	AC	3 ms; 5,376 KB
testcase_49	AC	4 ms; 5,376 KB
testcase_50	AC	2 ms; 5,376 KB
testcase_51	AC	2 ms; 5,376 KB
testcase_52	AC	2 ms; 5,376 KB
testcase_53	AC	7 ms; 5,376 KB
testcase_54	AC	140 ms; 5,376 KB
testcase_55	AC	132 ms; 5,376 KB
testcase_56	AC	132 ms; 5,376 KB
testcase_57	AC	21 ms; 5,376 KB
testcase_58	AC	21 ms; 5,376 KB
testcase_59	AC	8 ms; 5,376 KB
testcase_60	AC	30 ms; 5,376 KB
testcase_61	AC	31 ms; 5,376 KB
testcase_62	AC	205 ms; 5,376 KB
testcase_63	AC	62 ms; 5,376 KB
testcase_64	AC	40 ms; 5,376 KB
testcase_65	AC	39 ms; 5,376 KB
testcase_66	AC	2 ms; 5,376 KB
testcase_67	AC	2 ms; 5,376 KB
testcase_68	AC	172 ms; 5,376 KB
testcase_69	AC	170 ms; 5,376 KB
testcase_70	AC	141 ms; 5,376 KB
testcase_71	AC	142 ms; 5,376 KB
testcase_72	AC	55 ms; 5,376 KB
testcase_73	AC	385 ms; 5,632 KB
testcase_74	AC	404 ms; 5,504 KB
testcase_75	AC	3 ms; 5,376 KB
testcase_76	AC	158 ms; 5,376 KB
testcase_77	AC	22 ms; 5,376 KB
testcase_78	AC	279 ms; 5,376 KB
testcase_79	AC	166 ms; 5,376 KB
testcase_80	AC	238 ms; 5,376 KB
testcase_81	AC	146 ms; 5,376 KB
testcase_82	AC	3 ms; 5,376 KB
testcase_83	AC	22 ms; 5,376 KB
testcase_84	AC	24 ms; 5,376 KB
testcase_85	AC	115 ms; 5,376 KB
testcase_86	AC	256 ms; 5,376 KB
testcase_87	AC	588 ms; 5,888 KB
testcase_88	AC	612 ms; 5,888 KB

ソースコード

#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
//using mint = static_modint<998244353>;
using mint = static_modint<1000000007>;
ostream &operator<<(ostream &o,const mint &m){cout<<m.val();return o;}
using ll = long long;
using pl = pair<ll,ll>;
using vl = vector<ll>;
template<class T> using ve = vector<T>;
template<class T> using vv = vector<ve<T>>;
template<class T> using vvv = vector<vv<T>>;
#define rep(i,n) for(ll i=0;i<(ll)(n);++i)
#define reps(i,s,n) for(ll i=(s);i<(ll)(n);++i)
#define rep1(i,n) for(ll i=1;i<=(ll)(n);++i)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define be(v) (v).begin(),(v).end()
const long long INF = 1e18;
#ifdef DEBUG
#include <debug.hpp>
random_device rd;
mt19937 gen(rd());
ll random(ll l,ll h){
	uniform_int_distribution<ll> dist(l,h);
	return dist(gen);
}
#endif

vector<long long> prime_number(const long long N) {
	vector<bool> is_prime(N+1,true);
 	vector<ll> P;
	for(ll i = 2; i <= N; i++ ) {
    if( is_prime[ i ] ) {
      for( ll j = 2 * i; j <= N; j += i ) {
        is_prime[ j ] = false;
    	}
    	P.emplace_back( i );
  	}
	}
	return P;
}
ll N;
void input(){
	cin>>N;
}
#ifdef DEBUG
void showall(){
	show(N);
}
#endif
ll logic(){
	ll ans=0;
	vl p = prime_number(3*N);
	vl cnt(3*N+1,0);
	for(ll i = 2; p.at(i) <= N; ++i){
		rep(j,i-1){
			cnt.at(p.at(j)+p.at(i-1))++;
		}
		reps(j,i+1,p.size()){
			ans += cnt.at(p.at(j) - p.at(i));
		}
	}
	return ans;
}
#ifdef DEBUG
ll naive(){
	return 1;
}
#endif
int main(){
	input();
	#ifdef DEBUG
	showall();
	cout << "--- Logic ---" << endl;
	#endif
	ll ans=logic();
	cout<<ans<<endl;
	//if(logic())cout<<"Yes"<<endl;
	//else cout<<"No"<<endl;
	//while(input())logic();
	#ifdef DEBUG
	//show("naive=",naive());
	#endif
	#ifdef DEBUG
	/*
	rep(q,100){
		N=random(1LL,1000LL);
		showall();
		ll lans=logic(),nans=naive();
		if(lans!=nans){ show(" WA",lans,nans); break; }
		else{ show(" AC",lans,nans); }
	}
	*/
	#endif
	return 0;
}
//cout << fixed << setprecision(9);