結果
問題 | No.2447 行列累乗根 |
ユーザー | 👑 p-adic |
提出日時 | 2023-04-08 08:17:52 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,038 bytes |
コンパイル時間 | 3,122 ms |
コンパイル使用メモリ | 220,932 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-03 04:40:03 |
合計ジャッジ時間 | 11,054 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | AC | 2 ms
6,816 KB |
testcase_12 | AC | 2 ms
6,820 KB |
testcase_13 | AC | 2 ms
6,816 KB |
testcase_14 | AC | 2 ms
6,820 KB |
testcase_15 | AC | 2 ms
6,820 KB |
testcase_16 | AC | 2 ms
6,820 KB |
testcase_17 | AC | 2 ms
6,820 KB |
testcase_18 | AC | 6 ms
6,816 KB |
testcase_19 | AC | 30 ms
6,816 KB |
testcase_20 | AC | 280 ms
6,816 KB |
testcase_21 | AC | 278 ms
6,820 KB |
testcase_22 | AC | 277 ms
6,816 KB |
testcase_23 | AC | 279 ms
6,816 KB |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | AC | 279 ms
6,816 KB |
ソースコード
// 誤解法(厳密に0である値の近似誤差を無視した解法)チェック #pragma GCC optimize ( "O3" ) #pragma GCC optimize( "unroll-loops" ) #pragma GCC target ( "sse4.2,fma,avx2,popcnt,lzcnt,bmi2" ) #include <bits/stdc++.h> using namespace std; using ll = long long; #define MAIN main #define TYPE_OF( VAR ) remove_const<remove_reference<decltype( VAR )>::type >::type #define UNTIE ios_base::sync_with_stdio( false ); cin.tie( nullptr ) #define CEXPR( LL , BOUND , VALUE ) constexpr LL BOUND = VALUE #define CIN( LL , A ) LL A; cin >> A #define ASSERT( A , MIN , MAX ) assert( ( MIN ) <= A && A <= ( MAX ) ) #define CIN_ASSERT( A , MIN , MAX ) CIN( TYPE_OF( MAX ) , A ); ASSERT( A , MIN , MAX ) #define FOR( VAR , INITIAL , FINAL_PLUS_ONE ) for( TYPE_OF( FINAL_PLUS_ONE ) VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ ) #define REPEAT( HOW_MANY_TIMES ) FOR( VARIABLE_FOR_REPEAT , 0 , HOW_MANY_TIMES ) #define QUIT return 0 #define COUT( ANSWER ) cout << ( ANSWER ) << "\n" #define SET_PRECISION( PRECISION ) cout << fixed << setprecision( PRECISION ) template <typename T> class TwoByTwoMatrix { public: T m_M00; T m_M01; T m_M10; T m_M11; public: inline TwoByTwoMatrix( const T& M00 , const T& M01 , const T& M10 , const T& M11 ) noexcept; TwoByTwoMatrix<T>& operator=( const TwoByTwoMatrix<T>& mat ) noexcept; inline TwoByTwoMatrix<T> operator*( const TwoByTwoMatrix<T>& mat ); }; template <typename T> inline TwoByTwoMatrix<T>::TwoByTwoMatrix( const T& M00 , const T& M01 , const T& M10 , const T& M11 ) noexcept : m_M00( M00 ) , m_M01( M01 ) , m_M10( M10 ) , m_M11( M11 ) {} template <typename T> TwoByTwoMatrix<T>& TwoByTwoMatrix<T>::operator=( const TwoByTwoMatrix<T>& mat ) noexcept { if( &mat != this ){ m_M00 = mat.m_M00; m_M01 = mat.m_M01; m_M10 = mat.m_M10; m_M11 = mat.m_M11; } return *this; } template <typename T> inline TwoByTwoMatrix<T> TwoByTwoMatrix<T>::operator*( const TwoByTwoMatrix<T>& mat ) { return TwoByTwoMatrix<T>( m_M00 * mat.m_M00 + m_M01 * mat.m_M10 , m_M00 * mat.m_M01 + m_M01 * mat.m_M11 , m_M10 * mat.m_M00 + m_M11 * mat.m_M10 , m_M10 * mat.m_M01 + m_M11 * mat.m_M11 ); } void stod( const string& s , ll& num , double& answer ) { bool negative; uint i_start; if( s.substr( 0 , 1 ) == "-" ){ negative = true; i_start = 1; } else { negative = false; i_start = 0; } uint size = s.size(); uint exponent = 0; num = 0; FOR( i , i_start , size ){ string c = s.substr( i , 1 ); if( c == "." ){ assert( exponent == 0 ); assert( i - i_start == 1 ); exponent = size - 1 - i; assert( exponent <= 5 ); } else { num = num * 10 + stoi( c ); } } answer = ( negative ? - num : num ); while( exponent != 0 ){ answer *= 0.1; exponent--; } return; } int MAIN() { UNTIE; SET_PRECISION( 5 ); double M_entry[2][2]; double ( &M0 )[2] = M_entry[0]; double ( &M1 )[2] = M_entry[1]; double& M00 = M0[0]; double& M01 = M0[1]; double& M10 = M1[0]; double& M11 = M1[1]; ll num[2][2]; double e[2]; double& e0 = e[0]; double& e1 = e[1]; double U_entry[2][2]; double ( &U0 )[2] = U_entry[0]; double ( &U1 )[2] = U_entry[1]; double& U00 = U0[0]; double& U01 = U0[1]; double& U10 = U1[0]; double& U11 = U1[1]; double norm[2]; double& norm0 = norm[0]; double& norm1 = norm[1]; CEXPR( int , bound_T , 100000 ); CIN_ASSERT( T , 1 , bound_T ); REPEAT( T ){ FOR( i , 0 , 2 ){ double ( &Mi )[2] = M_entry[i]; ll ( &numi )[2] = num[i]; FOR( j , 0 , 2 ){ CIN( string, S ); stod( S , numi[j] , Mi[j] ); } } double tr = M00 + M11; double det = M00 * M11 - M01 * M10; double disc = tr * tr - 4.0 * det; double discrt = sqrt( disc ); // ここで0とのズレが生じうる e[0] = ( tr + discrt ) / 2.0; e[1] = ( tr - discrt ) / 2.0; double normsq; bool degenerate = false; FOR( j , 0 , 2 ){ double& ej = e[j]; double& U0j = U0[j]; double& U1j = U1[j]; double& normj = norm[j]; U0j = M10; U1j = ej - M00; normsq = U0j * U0j + U1j * U1j; normj = sqrt( normsq ); // ここで0とのズレが生じうる if( normj == 0.0 ){ U0j = ej - M11; U1j = M01; normsq = U0j * U0j + U1j * U1j; normj = sqrt( normsq ); // ここで0とのズレが生じうる if( normj == 0.0 ){ degenerate = true; break; } } } if( degenerate ){ e0 = M11; e1 = M11; U00 = 1.0; U10 = 0.0; U01 = 0.0; U11 = 1.0; } else { U00 /= norm0; U10 /= norm0; U01 /= norm1; U11 /= norm1; } TwoByTwoMatrix<double> U{ U00 , U01 , U10 , U11 }; TwoByTwoMatrix<double> Uinv{ U00 , U10 , U01 , U11 }; TwoByTwoMatrix<double> Dcbrt{ cbrt( e0 ) , 0.0 , 0.0 , cbrt( e1 ) }; TwoByTwoMatrix<double> Mcbrt = U * Dcbrt * Uinv; cout << Mcbrt.m_M00 << " " << Mcbrt.m_M01 << "\n"; cout << Mcbrt.m_M10 << " " << Mcbrt.m_M11 << "\n"; } QUIT; }