Memory computing and memory computing

Memory computing and memory computing

Because I often take MLE exams, I would like to summarize the content related to memory computing.

Memory Calculation Formula

Memory = number of variables * bytes occupied by the variable type/1024/1024 (M)

Bytes occupied by common variable types

Bool	1
Char	1
Int	4
Long	8
Double	8
Long double	12
Short	2
Float	4

 

 

 

 

 

 

 

 

 

 

 

 

If you forget it, you can use the sizeof function to view it.

1 printf ("% d", sizeof ());

 

Memory occupied by common array sizes

All types are int. Unit: M.

1e6 + 10	3.81473541259765625
1e7 + 10	38.14701080322265625
1e8 + 10	381.46976470947265625
(1e3 + 10) * (1e3 + 10)	3.8913726806640625
(1e4 + 10) * (1e4 + 10)	382.2330474853515625

 

 

 

 

 

 

 

 

 

 

Then MLE should eat shit ..