The number of bits of int is different in different compilers, but not less than 16 bits.

In 16 bit compiler, int is 16 bit, and in 32 bit compiler, int is 32 bit.

It depends on the compiler manual you use. Int stands for signed integer, which is the abbreviation of English integer.

If it is 16 bit int, the range of representation number is -32768~+32767.

If it is a 32-bit int, the range of the representation number is-2147483648 ~+2147483647.