結果
| 問題 |
No.422 文字列変更 (Hard)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2016-12-05 17:32:30 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,899 bytes |
| コンパイル時間 | 1,834 ms |
| コンパイル使用メモリ | 179,800 KB |
| 実行使用メモリ | 307,584 KB |
| 最終ジャッジ日時 | 2024-11-27 22:31:40 |
| 合計ジャッジ時間 | 6,493 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 1 |
| other | AC * 1 WA * 15 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair< int, int > pii;
typedef vector< int > vi;
typedef vector< vi > vvi;
typedef vector< ll > vl;
typedef vector< vl > vvl;
typedef vector< pii > vp;
typedef vector< vp > vvp;
typedef vector< string > vs;
typedef vector< double > vd;
typedef vector< vd > vvd;
template< class T1, class T2 >
int upmin( T1 &x, T2 v ){
if( x > v ){
x = v;
return 1;
}
return 0;
}
template< class T1, class T2 >
int upmax( T1 &x, T2 v ){
if( x < v ){
x = v;
return 1;
}
return 0;
}
const int INF = 0x3f3f3f3f;
int N, M;
string S;
string T;
void init(){
cin >> N >> M;
cin >> S;
cin >> T;
}
int dp[ 1200 + 1 ][ 1200 + 1 ][ 3 ][ 3 ];
tuple< int, int, int, int > pre[ 1200 + 1 ][ 1200 + 1 ][ 3 ][ 3 ];
int ds[ 1200 + 1 ][ 1200 + 1 ][ 3 ][ 3 ];
void preprocess(){
memset( dp, INF, sizeof( dp ) );
dp[ 0 ][ 0 ][ 0 ][ 0 ] = 0;
for( int i = 0; i <= N; ++i )
for( int j = 0; j <= M; ++j )
for( int t1 = 0; t1 < 3; ++t1 )
for( int t2 = 0; t2 < 3; ++t2 )
if( dp[ i ][ j ][ t1 ][ t2 ] < INF ){
if( i < N and j < M and S[ i ] == T[ j ] ){
if( upmin( dp[ i + 1 ][ j + 1 ][ 0 ][ 0 ], dp[ i ][ j ][ t1 ][ t2 ] ) )
pre[ i + 1 ][ j + 1 ][ 0 ][ 0 ] = tie( i, j, t1, t2 ),
ds[ i + 1 ][ j + 1 ][ 0 ][ 0 ] = 0;
}
if( i + 1 <= N and j + 1 <= M ){
if( upmin( dp[ i + 1 ][ j + 1 ][ 0 ][ 0 ], dp[ i ][ j ][ t1 ][ t2 ] + 5 ) )
pre[ i + 1 ][ j + 1 ][ 0 ][ 0 ] = tie( i, j, t1, t2 ),
ds[ i + 1 ][ j + 1 ][ 0 ][ 0 ] = 1;
}
if( i + 1 <= N ){
if( upmin( dp[ i + 1 ][ j ][ 1 ][ t2 ], dp[ i ][ j ][ t1 ][ t2 ] + ( t1 != 1 ? 9 : 2 ) ) )
pre[ i + 1 ][ j ][ 1 ][ t2 ] = tie( i, j, t1, t2 ),
ds[ i + 1 ][ j ][ 1 ][ t2 ] = 2;
if( upmin( dp[ i + 1 ][ j ][ t1 ][ 2 ], dp[ i ][ j ][ t1 ][ t2 ] + ( t2 != 2 ? 9 : 2 ) ) )
pre[ i + 1 ][ j ][ t1 ][ 2 ] = tie( i, j, t1, t2 ),
ds[ i + 1 ][ j ][ t1 ][ 2 ] = 3;
}
if( j + 1 <= M ){
if( upmin( dp[ i ][ j + 1 ][ 2 ][ t2 ], dp[ i ][ j ][ t1 ][ t2 ] + ( t1 != 2 ? 9 : 2 ) ) )
pre[ i ][ j + 1 ][ 2 ][ t2 ] = tie( i, j, t1, t2 ),
ds[ i ][ j + 1 ][ 2 ][ t2 ] = 4;
if( upmin( dp[ i ][ j + 1 ][ t1 ][ 1 ], dp[ i ][ j ][ t1 ][ t2 ] + ( t2 != 1 ? 9 : 2 ) ) )
pre[ i ][ j + 1 ][ t1 ][ 1 ] = tie( i, j, t1, t2 ),
ds[ i ][ j + 1 ][ t1 ][ 1 ] = 5;
}
}
}
void solve(){
int min_cost = INF;
for( int i = 0; i < 3; ++i )
for( int j = 0; j < 3; ++j )
upmin( min_cost, dp[ N ][ M ][ i ][ j ] );
cout << min_cost << endl;
for( int i = 0; i < 3; ++i )
for( int j = 0; j < 3; ++j )
if( min_cost == dp[ N ][ M ][ i ][ j ] ){
stack< char > s1, s2;
for( int a = N, b = M, c = i, d = j; not ( a == 0 and b == 0 ); tie( a, b, c, d ) = pre[ a ][ b ][ c ][ d ] ){
int op = ds[ a ][ b ][ c ][ d ];
switch( op ){
case 0: s1.emplace( S[ a - 1 ] ), s2.emplace( S[ a - 1 ] ); break;
case 1: s1.emplace( S[ a - 1 ] ), s2.emplace( S[ a - 1 ] ); break;
case 2: s1.emplace( '-' ); break;
case 3: s1.emplace( '-' ), s2.emplace( S[ a - 1 ] ); break;
case 4: s1.emplace( S[ b - 1 ] ); break;
case 5: s1.emplace( '-' ), s2.emplace( '-' ); break;
}
}
string str1, str2;
for( ; not s1.empty(); s1.pop(), s2.pop() )
str1 += s1.top(),
str2 += s2.top();
cout << str1 << endl;
cout << str2 << endl;
exit( 0 );
}
}
signed main(){
ios::sync_with_stdio( 0 );
init();
preprocess();
solve();
return 0;
}