結果

問題 No.393 2本の竹
ユーザー torus711torus711
提出日時 2016-07-12 18:05:58
言語 C++14
(gcc 11.2.0 + boost 1.78.0)
結果
AC  
実行時間 132 ms / 1,000 ms
コード長 3,232 bytes
コンパイル時間 1,918 ms
使用メモリ 36,328 KB
最終ジャッジ日時 2022-12-14 14:23:28
合計ジャッジ時間 5,130 ms
ジャッジサーバーID
(参考情報)
judge10 / judge14
このコードへのチャレンジ(β)

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
testcase_00 AC 86 ms
36,236 KB
testcase_01 AC 86 ms
36,296 KB
testcase_02 AC 87 ms
36,308 KB
testcase_03 AC 88 ms
36,172 KB
testcase_04 AC 86 ms
36,216 KB
testcase_05 AC 87 ms
36,164 KB
testcase_06 AC 87 ms
36,160 KB
testcase_07 AC 88 ms
36,328 KB
testcase_08 AC 86 ms
36,232 KB
testcase_09 AC 132 ms
36,268 KB
testcase_10 AC 96 ms
36,272 KB
testcase_11 AC 106 ms
36,268 KB
testcase_12 AC 107 ms
36,172 KB
testcase_13 AC 100 ms
36,320 KB
testcase_14 AC 95 ms
36,232 KB
testcase_15 AC 34 ms
36,220 KB
testcase_16 AC 72 ms
36,296 KB
testcase_17 AC 85 ms
36,292 KB
testcase_18 AC 86 ms
36,316 KB
testcase_19 AC 65 ms
36,160 KB
testcase_20 AC 85 ms
36,164 KB
testcase_21 AC 86 ms
36,324 KB
testcase_22 AC 109 ms
36,284 KB
testcase_23 AC 98 ms
36,320 KB
testcase_24 AC 86 ms
36,232 KB
testcase_25 AC 78 ms
36,168 KB
testcase_26 AC 72 ms
36,164 KB
testcase_27 AC 113 ms
36,232 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#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 <limits>
#include <numeric>
#include <utility>
#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 VS = vector< string >;
using SS = stringstream;
using PII = pair< int, int >;
using VPII = vector< pair< int, int > >;
template < typename T = int > using VT = vector< T >;
template < typename T = int > using VVT = vector< vector< T > >;
template < typename T = int > using LIM = numeric_limits< 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; }
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 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 )( __VA_ARGS__ )
#define FOR( e, c ) for ( auto &&e : c )
#define ALL( c ) begin( c ), end( c )
#define AALL( a, t ) ( t* )a, ( t* )a + sizeof( a ) / sizeof( t )
#define DRANGE( c, p ) ( c ).begin(), ( c ).begin() + ( p ), ( c ).end()

#define SZ( v ) ( (int)( v ).size() )
#define EXIST( 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

constexpr int INF = LIM<>::max() / 2;
constexpr int LMAX = ( 1 << 17 );

int dp[ 64 ][ LMAX ];

int solve()
{
	VI L( 2 );
	cin >> L;

	int N;
	cin >> N;

	VI A( N );
	cin >> A;
	sort( ALL( A ) );

	fill( AALL( dp, int ), -INF );
	dp[0][ L[0] ] = L[1];
	// dp[ processed ][ remaining length of A ] := maximum remaining length of B 

	int res = 0;
	REP( i, N )
	{
		REP( j, L[0] + 1 )
		{
			if ( dp[i][j] == -INF )
			{
				continue;
			}

			if ( 0 <= dp[i][j] )
			{
				res = i;
			}

			if ( A[i] <= j )
			{
				chmax( dp[ i + 1 ][ j - A[i] ], dp[i][j] );
			}
			chmax( dp[ i + 1 ][j], dp[i][j] - A[i] );
		}
	}
	return 0 <= *max_element( ALL( dp[N] ) ) ? N : res;
}

int main()
{
	cin.tie( 0 );
	ios::sync_with_stdio( false );
	cout << setprecision( 12 ) << fixed;

	int T;
	cin >> T;

	REP( _, T )
	{
		cout << solve() << endl;
	}

	return 0;
}
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