Answer Posted / Shishir Saxena
Signed numbers in most systems, such as C/C++, use two's complement representation which requires an extra bit to signify the number as negative. On the other hand, unsigned numbers only need positive values, hence they don't require a sign bit. This means that for the same size (e.g., 32-bit or 64-bit), unsigned integers can store a slightly larger range of numbers compared to signed integers.
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