How to Manipulate Bits in C and C++

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In C++ programming language int data type is 16-bit, 32-bit and 64-bit type. In programming, an n bit integer is stored as a binary number that consists of n bits. In a signed representation, first bit represents the sign of a number (0 for positive and 1 for negative), and remaining n-1 bits contains the magnitude of the number. In an unsigned representation, the next number after the first bit is even and ifthenis odd. We can use & operator to check if a number is even or odd.