-2147483648,2147483648 games

-2147483648,2147483648 games

We may often encounter overflow when writing a program, where data overflow occurs when we accidentally process-2147483648.
-2147483648 =-2 ^ 31. We know that this is the minimum value that int type can represent in 64-bit systems. In this case, we must be careful with the operation, such as executing the following program:

Int a =-2147483648; int B = a *-1; int c = A-1;

The result is as follows:

Why?
C:
We know that the addition and subtraction operations on the computer use the complement method, so-2147483648-1 can be written:
80000000 + FFFFFFFF = 7 FFFFFFFF = 2147483647;
B:
B =-a = 2147483648, but obviously, it is beyond the int expression range. Its machine code is 80000000, which is interpreted as-2147483648 by using the complement code.