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Question 1
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Given an unsigned 32-bit integer $x$, which of the following C/C++ expressions
correctly toggles $m$ bits starting from position $p$ (with the least significant bit at position
$0$)?
Assume: x is the input integer; p is the starting position of the bit range (0-based, LSB at
position 0); m is the number of bits to toggle; and No overflow or invalid input conditions occur.
Which of the following correctly toggles $m$ bits of $x$ starting from position $p$?