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Constants in C refer to fixed values that do not change during the execution of a
An integer constant refers to a sequence of digits, There are three types integers,
namely, decimal, octal, and hexa decimal.
Eg: 1) 15 750
Note: Embedded spaces, commas and non-digit characters are not permitted
An octal integer constant consists of any combination of digits from the set 0 through
7, with a leading 0.
Eg: 1) 037
A sequence of digits preceded by 0x or 0X is considered as hexadecimal integer.
They may also include alphabets A through F or a through f.
Eg: 1) 0X2
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