結果
問題 | No.2872 Depth of the Parentheses |
ユーザー | torus711 |
提出日時 | 2024-09-06 22:21:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 108 ms / 2,000 ms |
コード長 | 4,915 bytes |
コンパイル時間 | 1,245 ms |
コンパイル使用メモリ | 128,364 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-06 22:22:38 |
合計ジャッジ時間 | 2,835 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 3 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 105 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 28 ms
6,940 KB |
testcase_11 | AC | 9 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 9 ms
6,940 KB |
testcase_14 | AC | 4 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 105 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 108 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,940 KB |
evil_01.txt | RE | - |
evil_02.txt | RE | - |
evil_03.txt | RE | - |
evil_04.txt | RE | - |
evil_05.txt | RE | - |
ソースコード
#include <iostream> #include <iomanip> #include <sstream> #include <vector> #include <string> #include <set> #include <unordered_set> #include <map> #include <unordered_map> #include <stack> #include <queue> #include <deque> #include <algorithm> #include <functional> #include <iterator> #include <ranges> #include <limits> #include <numeric> #include <utility> #include <type_traits> #include <cmath> #include <cassert> #include <cstdio> using namespace std; using namespace placeholders; using LL = long long; using ULL = unsigned long long; using VI = vector< int >; using VVI = vector< vector< int > >; using VLL = vector< long long >; using VVLL = vector< vector< long long > >; using VS = vector< string >; using ISS = istringstream; using OSS = ostringstream; using PII = pair< int, int >; using VPII = vector< pair< int, int > >; template < typename T = int > using LIM = numeric_limits< T >; template < typename T = int > using OSI = ostream_iterator< T >; template < typename T > inline istream& operator>>( istream &s, vector< T > &v ){ for ( T &t : v ) { s >> t; } return s; } template < typename T > inline ostream& operator<<( ostream &s, const vector< T > &v ){ for ( int i = 0; i < int( v.size() ); ++i ){ s << ( " " + !i ) << v[i]; } return s; } void in_impl(){}; template < typename T, typename... TS > void in_impl( T &head, TS &... tail ){ cin >> head; in_impl( tail ... ); } #define IN( T, ... ) T __VA_ARGS__; in_impl( __VA_ARGS__ ); template < typename T, typename V > auto make_vector( const int n, const V &v ) { return vector< T >( n, v ); } template < typename T, typename... TS > auto make_vector( const int n, TS... ts ) { return vector< decltype( make_vector< T >( forward< TS >( ts )...) ) >( n, make_vector< T >( forward< TS >( ts )... ) ); } template < typename T, typename V > auto make_vector0() { return vector< T >(); } template < typename T, typename... TS > auto make_vector0( const int n, TS... ts ) { return vector< decltype( make_vector0< T >( forward< TS >( ts )...) ) >( n, make_vector0< T >( forward< TS >( ts )... ) ); } template < typename T > inline T fromString( const string &s ) { T res; istringstream iss( s ); iss >> res; return res; } template < typename T > inline string toString( const T &a ) { ostringstream oss; oss << a; return oss.str(); } #define NUMBERED( name, number ) NUMBERED2( name, number ) #define NUMBERED2( name, number ) name ## _ ## number #define REP1( n ) REP2( NUMBERED( REP_COUNTER, __LINE__ ), n ) #define REP2( i, n ) REP3( i, 0, n ) #define REP3( i, m, n ) for ( int i = ( int )( m ); i < ( int )( n ); ++i ) #define GET_REP( a, b, c, F, ... ) F #define REP( ... ) GET_REP( __VA_ARGS__, REP3, REP2, REP1 )( __VA_ARGS__ ) #define FOR( e, c ) for ( auto &&e : c ) #define ALL( c ) begin( c ), end( c ) #define AALL( a ) ( remove_all_extents< decltype( a ) >::type * )a, ( remove_all_extents< decltype( a ) >::type * )a + sizeof( a ) / sizeof( remove_all_extents< decltype( a ) >::type ) #define MAP_PRED( c ) transform( begin( c ), end( c ), begin( c ), bind( minus< int >(), _1, 1 ) ); #define SZ( v ) ( (int)( v ).size() ) #define EXISTS( c, e ) ( ( c ).find( e ) != ( c ).end() ) template < typename T > inline bool chmin( T &a, const T &b ){ if ( b < a ) { a = b; return true; } return false; } template < typename T > inline bool chmax( T &a, const T &b ){ if ( a < b ) { a = b; return true; } return false; } #define PB push_back #define EM emplace #define EB emplace_back #define BI back_inserter #define MP make_pair #define fst first #define snd second #define DUMP( x ) cerr << #x << " = " << ( x ) << endl // Λ Λ__ // /(*゚ー゚)/\ // /|  ̄U U ̄|\/ // | |/ #include <atcoder/modint> using namespace atcoder; using MINT = modint998244353; inline istream& operator>>( istream &s, MINT &t ){ int a; s >> a; t = a; return s; }; inline istream& operator>>( istream &s, vector< MINT > &v ){ for ( MINT &a : v ){ s >> a; } return s; } inline ostream& operator<<( ostream &s, const MINT &t ){ s << t.val(); return s; } MINT expected( const MINT &P, const string &S ) { int ma = 0, d = 0; MINT prob = 1; FOR( c, S ) { if ( c == '(' ) { ++d; prob *= P; } else { --d; prob *= P.inv(); } if ( d < 0 ) { return 0; } chmax( ma, d ); } return d ? 0 : ma * prob; } int main() { cin.tie( nullptr ); ios::sync_with_stdio( false ); cout << setprecision( 12 ) << fixed; IN( int, X, K ); assert( K <= 10 ); if ( X == 0 || X == 100 ) { cout << 0 << endl; return 0; } const MINT P = X * MINT( 100 ).inv(); VI is_closing( 2 * K ); fill( begin( is_closing ) + K, end( is_closing ), 1 ); MINT res = 0; do { string s; REP( i, 2 * K ) { s += "()"[ is_closing[i] ]; } res += P.pow( K ) * ( 1 - P ).pow( K ) * expected( P, s ); } while ( next_permutation( ALL( is_closing ) ) ); cout << res << endl; return 0; }