結果
問題 | No.843 Triple Primes |
ユーザー | Laika |
提出日時 | 2019-07-01 16:46:37 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,635 bytes |
コンパイル時間 | 1,609 ms |
コンパイル使用メモリ | 170,072 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-16 04:37:35 |
合計ジャッジ時間 | 3,103 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 | 2 ms
6,812 KB |
testcase_01 | AC | 11 ms
6,940 KB |
testcase_02 | AC | 3 ms
6,944 KB |
testcase_03 | AC | 3 ms
6,940 KB |
testcase_04 | AC | 3 ms
6,944 KB |
testcase_05 | AC | 3 ms
6,940 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 11 ms
6,944 KB |
testcase_08 | AC | 11 ms
6,940 KB |
testcase_09 | AC | 12 ms
6,944 KB |
testcase_10 | AC | 11 ms
6,940 KB |
testcase_11 | AC | 11 ms
6,940 KB |
testcase_12 | AC | 11 ms
6,944 KB |
testcase_13 | AC | 11 ms
6,944 KB |
testcase_14 | AC | 12 ms
6,940 KB |
testcase_15 | AC | 10 ms
6,940 KB |
testcase_16 | AC | 11 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,948 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 7 ms
6,940 KB |
testcase_21 | AC | 6 ms
6,944 KB |
testcase_22 | AC | 9 ms
6,940 KB |
testcase_23 | AC | 9 ms
6,940 KB |
testcase_24 | AC | 8 ms
6,940 KB |
testcase_25 | AC | 7 ms
6,940 KB |
testcase_26 | AC | 12 ms
6,940 KB |
testcase_27 | AC | 5 ms
6,944 KB |
testcase_28 | AC | 12 ms
6,940 KB |
testcase_29 | AC | 8 ms
6,940 KB |
testcase_30 | AC | 11 ms
6,940 KB |
testcase_31 | AC | 5 ms
6,940 KB |
testcase_32 | AC | 4 ms
6,944 KB |
testcase_33 | AC | 8 ms
6,944 KB |
testcase_34 | AC | 9 ms
6,944 KB |
testcase_35 | AC | 12 ms
6,944 KB |
testcase_36 | AC | 7 ms
6,944 KB |
testcase_37 | AC | 11 ms
6,940 KB |
testcase_38 | AC | 10 ms
6,940 KB |
testcase_39 | AC | 12 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,940 KB |
testcase_41 | AC | 2 ms
6,944 KB |
testcase_42 | WA | - |
testcase_43 | WA | - |
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < (n); ++i) #define eee(a) (cerr << (#a) << ": " << (a) << endl); using ll = long long; using pint = pair<int, int>; using pll = pair<ll, ll>; using mint = map<int, int>; int dx[4] = {1, 0, -1, 0}; int dy[4] = {0, 1, 0, -1}; const char sp = ' '; const char cmm = ','; const int MOD = 1e9+7; const int INF = 1e9; const ll LINF = 1e18; ll mod(ll a, ll b){return (a%b+b)%b;} ll gcd(ll a, ll b){return b?gcd(b,a%b):a;} ll lcm(ll a, ll b){return a*b/gcd(a,b);} void Yes(){cout << "Yes" << endl;} void No(){cout << "No" << endl;} void Judge(bool b){b?Yes():No();} void YES(){cout << "YES" << endl;} void NO(){cout << "NO" << endl;} void JUDGE(bool b){b?YES():NO();} ll powmod(ll b, ll e){ll r=1;while(e>0){if(e&1)r=(r%MOD)*(b%MOD)%MOD;b=(b%MOD)*(b%MOD)%MOD;e>>=1;}return r;} ll powm(ll b, ll e, ll n){ll r=1;while(e>0){if(e&1)r=(r%n)*(b%n)%n;b=(b%n)*(b%n)%n;e>>=1;}return r;} double distance(ll x1, ll y1, ll x2, ll y2){return sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));} 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; } template<typename T> void ppp(T n){cout << n << endl;} template<typename T1, typename T2> ostream& operator<<(ostream& s, const pair<T1, T2>& p) {return s << "(" << p.first << ", " << p.second << ")";} template<typename T> ostream& operator<<(ostream& s, const vector<T>& v) { int len = v.size(); s << '['; for (int i = 0; i < len; ++i) { s << v[i]; if (i < len-1) s << ", "; } s << ']'; return s; } struct aaa{ aaa(){ cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(15); }; }fastio; bool is_prime(ll n){ if(n == 2) return true; if(n == 1 or !(n & 1)) return false; random_device rnd; ll d = (n-1) >> 1; while(!(d&1)) d >>= 1; rep(k, 100){ ll a = rnd() % (n-1) + 1; ll t = d; ll y = powm(a, t, n); while(t != (n-1) and y != 1 and y != (n-1)){ y = powm(y,2,n); t <<= 1; } if(y != n-1 and !(t & 1)){ return false; } } return true; } int main(){ int n; cin >> n; int cnt = 0; if(n == 1){ cout << 0 << endl; return 0; } else if(n == 2){ cout << 1 << endl; return 0; } ++cnt; for(int i = 3; i*i <= n; i+=2){ if(!is_prime(i)) continue; if(is_prime(i*i-2)){ cnt += 2; } } ppp(cnt); return 0; }