### Integer datatype in C: int, short, long and long long

###### Each bit can store 2 values (0 and 1) Hence, integer data type can hold 2^32 values. In signed version, the most significant bit is reserved for sign. So, 0 denotes positive number and 1 denotes negative number. Hence. range of unsigned int is 0 to 2^32-1; range of signed int is -2^31 to 2^31-1