結果
問題 | No.308 素数は通れません |
ユーザー | mayoko_ |
提出日時 | 2015-12-02 21:06:31 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,927 bytes |
コンパイル時間 | 1,041 ms |
コンパイル使用メモリ | 99,872 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-14 08:02:44 |
合計ジャッジ時間 | 3,504 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge6 |
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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 | 1 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | AC | 1 ms
6,944 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 1 ms
6,940 KB |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 1 ms
6,944 KB |
testcase_24 | WA | - |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 1 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,944 KB |
testcase_31 | AC | 1 ms
6,940 KB |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | AC | 1 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,944 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 1 ms
6,944 KB |
testcase_40 | AC | 1 ms
6,940 KB |
testcase_41 | AC | 2 ms
6,940 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 2 ms
6,940 KB |
testcase_44 | AC | 2 ms
6,944 KB |
testcase_45 | AC | 2 ms
6,940 KB |
testcase_46 | AC | 2 ms
6,944 KB |
testcase_47 | AC | 2 ms
6,944 KB |
testcase_48 | AC | 1 ms
6,944 KB |
testcase_49 | AC | 2 ms
6,944 KB |
testcase_50 | AC | 1 ms
6,940 KB |
testcase_51 | AC | 1 ms
6,944 KB |
testcase_52 | AC | 2 ms
6,944 KB |
testcase_53 | AC | 1 ms
6,944 KB |
testcase_54 | AC | 1 ms
6,940 KB |
testcase_55 | AC | 2 ms
6,944 KB |
testcase_56 | AC | 2 ms
6,940 KB |
testcase_57 | AC | 2 ms
6,940 KB |
testcase_58 | AC | 1 ms
6,944 KB |
testcase_59 | AC | 1 ms
6,944 KB |
testcase_60 | AC | 2 ms
6,944 KB |
testcase_61 | AC | 1 ms
6,944 KB |
testcase_62 | AC | 2 ms
6,940 KB |
testcase_63 | AC | 2 ms
6,940 KB |
testcase_64 | AC | 1 ms
6,940 KB |
testcase_65 | AC | 2 ms
6,940 KB |
testcase_66 | AC | 2 ms
6,940 KB |
testcase_67 | AC | 1 ms
6,940 KB |
testcase_68 | AC | 2 ms
6,940 KB |
testcase_69 | AC | 2 ms
6,940 KB |
testcase_70 | AC | 2 ms
6,940 KB |
testcase_71 | AC | 1 ms
6,940 KB |
testcase_72 | AC | 1 ms
6,944 KB |
testcase_73 | AC | 2 ms
6,940 KB |
testcase_74 | AC | 1 ms
6,944 KB |
testcase_75 | WA | - |
testcase_76 | WA | - |
testcase_77 | AC | 2 ms
6,944 KB |
testcase_78 | AC | 2 ms
6,940 KB |
testcase_79 | AC | 2 ms
6,940 KB |
testcase_80 | WA | - |
testcase_81 | WA | - |
testcase_82 | AC | 2 ms
6,944 KB |
testcase_83 | AC | 1 ms
6,944 KB |
testcase_84 | WA | - |
testcase_85 | AC | 2 ms
6,944 KB |
testcase_86 | WA | - |
testcase_87 | WA | - |
testcase_88 | AC | 2 ms
6,944 KB |
testcase_89 | AC | 2 ms
6,944 KB |
testcase_90 | WA | - |
testcase_91 | AC | 1 ms
6,944 KB |
testcase_92 | AC | 2 ms
6,940 KB |
testcase_93 | AC | 2 ms
6,944 KB |
testcase_94 | AC | 2 ms
6,944 KB |
testcase_95 | AC | 2 ms
6,944 KB |
testcase_96 | AC | 2 ms
6,940 KB |
testcase_97 | AC | 2 ms
6,948 KB |
testcase_98 | AC | 2 ms
6,940 KB |
testcase_99 | AC | 2 ms
6,940 KB |
testcase_100 | AC | 2 ms
6,944 KB |
testcase_101 | WA | - |
testcase_102 | AC | 2 ms
6,940 KB |
testcase_103 | AC | 2 ms
6,944 KB |
testcase_104 | AC | 2 ms
6,944 KB |
testcase_105 | AC | 1 ms
6,944 KB |
testcase_106 | AC | 1 ms
6,940 KB |
ソースコード
#include<cstdio> #include<cstdlib> #include<cstring> #include<cmath> //#include<cctype> #include<climits> #include<iostream> #include<string> #include<vector> #include<map> //#include<list> #include<queue> #include<deque> #include<algorithm> //#include<numeric> #include<utility> #include<complex> //#include<memory> #include<functional> #include<cassert> #include<set> #include<stack> const int dx[] = {1, 0, -1, 0}; const int dy[] = {0, 1, 0, -1}; using namespace std; //typedef long long ll; typedef __int128 ll; typedef vector<int> vi; typedef vector<ll> vll; typedef pair<int, int> pii; const int MAXN = 100; bool prime[MAXN]; bool done[MAXN][MAXN]; ll pow_mod(ll a, ll p, ll mod) { if (a == 0) return 0; if (p == 0) return 1; if (p == 1) return a; if (p%2) return a*pow_mod(a, p-1, mod)%mod; ll tmp = pow_mod(a, p/2, mod); return tmp*tmp&mod; } bool check(ll a, ll n, int k, ll q) { ll tmp = pow_mod(a, q, n); if (tmp == 1) return true; for (int i = 0; i < k-1; i++) { tmp = tmp*tmp%n; if (tmp == n-1) return true; if (tmp == 1) return false; } return false; } bool isPrime(ll n) { ll q = n-1; int k = 0; while (q%2==0) { q /= 2; k++; } vector<ll> p = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41}; for (ll a : p) { if (!check(a, n, k, q)) return false; } return true; } int main() { cin.tie(0); ios::sync_with_stdio(false); for (int i = 2; i < MAXN; i++) prime[i] = true; for (int i = 2; i < MAXN; i++) { if (prime[i]) for (int j = 2; j*i < MAXN; j++) prime[i*j] = false; } string s; cin >> s; ll N = 0; reverse(s.begin(), s.end()); for (char el : s) N = N*10+(el-'0'); if (N < 100) { for (int w = 2; w < N; w++) { int h = N/w+(N%w!=0); vector<vi> board(h, vi(w)); for (int j = 0; j < N; j++) { board[j/w][j%w] = j+1; } assert(board[(N-1)/w][(N-1)%w] == N); queue<pii> que; memset(done, false, sizeof(done)); que.push(pii(0, 0)); done[0][0] = true; while (!que.empty()) { pii p = que.front(); que.pop(); for (int k = 0; k < 4; k++) { int ny = p.first+dy[k]; int nx = p.second+dx[k]; if (ny < 0 || ny >= h || nx < 0 || nx >= w || board[ny][nx] == 0 || prime[board[ny][nx]]) continue; if (done[ny][nx]) continue; done[ny][nx] = true; que.push(pii(ny, nx)); } } if (done[(N-1)/w][(N-1)%w]) { cout << w << endl; return 0; } } } else { if (N%8 == 1 && isPrime(N-8)) cout << 14 << endl; else cout << 8 << endl; } return 0; }