結果
問題 | No.774 tatyamと素数大富豪 |
ユーザー |
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提出日時 | 2019-01-02 19:13:47 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,792 ms / 2,000 ms |
コード長 | 4,326 bytes |
コンパイル時間 | 1,705 ms |
コンパイル使用メモリ | 172,536 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-21 12:42:46 |
合計ジャッジ時間 | 15,157 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 14 |
ソースコード
#include<bits/stdc++.h>#define rep(i,a,b) for(int i=a;i<b;i++)#define rrep(i,a,b) for(int i=a;i>=b;i--)#define fore(i,a) for(auto &i:a)#define all(x) (x).begin(),(x).end()//#pragma GCC optimize ("-O3")using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;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; }//---------------------------------------------------------------------------------------------------#ifdef _MSC_VER#pragma push_macro("long")#undef long#ifdef _WIN32inline unsigned int __builtin_ctz(unsigned int x) { unsigned long r; _BitScanForward(&r, x); return r; }inline unsigned int __builtin_clz(unsigned int x) { unsigned long r; _BitScanReverse(&r, x); return 31 - r; }inline unsigned int __builtin_ffs(unsigned int x) { unsigned long r; return _BitScanForward(&r, x) ? r + 1 : 0; }inline unsigned int __builtin_popcount(unsigned int x) { return __popcnt(x); }inline unsigned int hidword(unsigned long long x) { return static_cast<unsigned int>(x >> 32); }inline unsigned int lodword(unsigned long long x) { return static_cast<unsigned int>(x & 0xFFFFFFFF); }inline unsigned long long __builtin_ctzll(unsigned long long x) { return lodword(x) ? __builtin_ctz(lodword(x)) : __builtin_ctz(hidword(x)) + 32; }inline unsigned long long __builtin_clzll(unsigned long long x) { return hidword(x) ? __builtin_clz(hidword(x)) : __builtin_clz(lodword(x)) + 32; }inline unsigned long long __builtin_ffsll(unsigned long long x) { return lodword(x) ? __builtin_ffs(lodword(x)) : hidword(x) ? __builtin_ffs(hidword(x)) + 32 : 0; }inline unsigned long long __builtin_popcountll(unsigned long long x) { return __builtin_popcount(lodword(x)) + __builtin_popcount(hidword(x)); }#endif // _WIN32#pragma pop_macro("long")#endif // _MSC_VERtypedef long long ll;typedef __int128 int128_t;//typedef ll int128_t;int128_t powmod(int128_t x, int128_t y, int128_t p) { // O(log y)assert(0 <= x and x < p);assert(0 <= y);int128_t z = 1;for (int128_t i = 1; i <= y; i <<= 1) {if (y & i) z = z * x % p;x = x * x % p;}return z;}int K = 10;int getrand(int l, int r) { // [l, r]static uint32_t y = time(NULL);y ^= (y << 13); y ^= (y >> 17);y ^= (y << 5);return y % (r - l + 1) + l;}ll getrandll(ll l, ll r) { // [l,r]ll a = getrand(0, 999999999);ll b = getrand(0, 999999999);ll x = a * 1000000000LL + b;assert(0 <= x);return x % (r - l + 1) + l;}bool isprime(ll v, int loop = 5) {ll d = v - 1;int s = 0, i, j;if (v <= 1) return false;if (v == 2) return true;if (v % 2 == 0) return false;while (d % 2 == 0) d /= 2, s++;rep(i, 0, loop) {ll a = getrandll(1, v - 1);ll r = powmod(a, d, v);if (r == 1 || r == v - 1) continue;int j;for (j = 0; j < s; j++) {r = powmod(r, 2, v);if (r == v - 1) break;}if (j == s) return false;}return true;}/*---------------------------------------------------------------------------------------------------∧_∧∧_∧ (´<_` ) Welcome to My Coding Space!( ´_ゝ`) / ⌒i/ \ | |/ / ̄ ̄ ̄ ̄/ |__(__ニつ/ _/ .| .|____\/____/ (u ⊃---------------------------------------------------------------------------------------------------*/int N, A[10];//---------------------------------------------------------------------------------------------------void _main() {cin >> N;rep(i, 0, N) cin >> A[i];vector<int> ord;rep(i, 0, N) ord.push_back(i);ll ans = -1;do {ll x = 0;rep(i, 0, N) {int j = ord[i];if (10 <= A[j]) x = 100 * x + A[j];else x = 10 * x + A[j];}if (isprime(x)) chmax(ans, x);} while (next_permutation(all(ord)));cout << ans << endl;}