AMP Learning

感觉多少有点复杂 Def A dangling pointer is a pointer that points to a location whose memory is deallocated. dynamic objects are managed by heap, and stack vice versa. Temporary objects are managed by stack. And rvalue reference is an alias of a temporary object/value. const int* is different from int* const. int* const相当于我们让一个const变量成为指针，比如int* const ptr = & x，那么实际上ptr作为一个const变量是不可变的，但是他指向的x的值是可变的，即* x = 5编译是可以通过的。相较之下，const int* ptr = & x则是ptr是changeable，x是unchangeable。 我告诉你一个小的技巧，就是c++k ...

Normalized Training ModelStage 1: Load DataDivide the stage into four sub-stage: load data file separate data into groups according to the number of features divide the dataset into training & test dataset normalize data to the range of [0, 1] 1.1.1 load data file 12345678import paddleimport numpy as npimport jsondef load_data (): # load data file datafile = '.../.../.../' data = np.fromfile (datafile, sep = ' ') np.fromfile is used for constructing data from ...

It’s Time To Learn PYTHON! (record of python challenges)Sometimes refer to the solutions to all the passes: HackingNote Python Challenges Solutions The First PassThe gibberish displayed on the screen is a passcode which is coded with Caeser cipeher, one of the simplest encryption techniques. From the Wikipedia, we can know that It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a l ...