iostream
The iostream header file mainly contains the standard input and output functions of the system and the declaration and definition of data
cstdio
Cstdio uses streams to operate physical devices such as keyboards, printers, terminals or other types of files supported by the system. It is also a standard input and output library.
algorithm
The algorithm defines a series of functions specially designed for the range of elements. The range is any sequence of objects that can be accessed through an iterator or pointer, such as an array of 1 and some instances of STL containers. The algorithm will directly operate on the value through the iterator. Will not affect the structure of any possible container (size or storage allocation) in any way
cmath
As the name implies, perform mathematical operations, including absolute value, rounding, exponent, logarithm, positive and negative trigonometric functions, rounding and other functional operations
cstring与string
For string related operations, there are certain differences between the two
cstdlib
cstdlib defines several general functions, including dynamic memory management, random number generation, communication with the environment, integer arithmetic, search, sorting and conversion
queue
Two classes related to queues are defined, queue, priority_queue, which implement queues and priority queues ( queue ) respectively
vector
A data structure in C++, to be precise, is a class, which is equivalent to a dynamic array. When the programmer cannot know the size of the array he needs, he can use it to solve the problem in order to save the most space.
map
The map header file contains two containers with similar concepts: map and multimap. These two containers reflect the concept of mapping. The
map header file
To be continued...