a； Indicates that the variable A is an integer, and only integers can be saved.

Internationalorganizations (same as international organizations)

maximum

It should be int

Maximum (

), there is a bracket, which means function. The meaning of function here is different from that of function in mathematics. The following is the code that can complete a function. Put these codes together and give them a name. Later, when I saw the name max (), it meant that its code could accomplish this function. As for the name, you can take it at will under certain conditions. Generally, you should read the name clearly, and when you see max, you want to be bigger. Internationalorganizations (same as international organizations)

maximum

() means that the type of the function is an integer, generally referring to the returned number.