Exemple #1
0
template <typename T> void  testSplayRandom ( int n ) { //随机访问测试
   Splay<T> splay;
   while ( splay.size() < n ) {
      T e = dice ( ( T ) n * 3 ); //[0, 3n)范围内的e
      switch ( dice ( 3 ) ) {
         case 0: { //查找,成功率 <= 33.3%
            printf ( "Searching for " ); print ( e ); printf ( " ...\n" );
            splay.search ( e ) ?
            printf ( "Found with" ), print ( splay.root() ), printf ( "\n" ) :
            printf ( "Not found\n" );
            break;
         }
         case 1: { //删除,成功率 <= 33.3%
            printf ( "Removing " ); print ( e ); printf ( " ...\n" );
            splay.remove ( e ) ?
            printf ( "Removal done\n" ) :
            print ( e ), printf ( " not exists\n" );
            break;
         }
         default: {//插入,成功率 == 100%
            printf ( "Inserting " ); print ( e ); printf ( " ...\n" );
            splay.insert ( e );
            ( e == splay.root()->data ) ?
            printf ( "Insertion done with" ), print ( splay.root() ), printf ( "\n" ) :
            print ( e ), "duplicated";
            break;
         }
      } //switch
      print ( splay ); //无论调用哪个接口,Splay都会自我调整形态,故需统一输出
   } //while
   while ( splay.size() > 0 ) {
      T e = dice ( ( T ) n * 3 ); //[0, 3n)范围内的e
      printf ( "Removing " ); print ( e ); printf ( " ...\n" );
      splay.remove ( e ) ? printf ( "Removal done\n" ), print ( splay ) : print ( e ), printf ( " not exists\n" );
   }
} //课后:利用这一接口,针对不同分布的访问,验证课上对Splay分摊分析的结论
Exemple #2
0
template <typename T> void  testSplayPeriod ( int n ) { //周期性访问测试
   Splay<T> splay;
   for ( int i = 0; i < n; i++ ) splay.insert ( ( T ) i ); print ( splay );
   for ( int i = 0; i < n; i++ ) { splay.search ( ( T ) i ); print ( splay ); }
}