NIMCET 2025 Paper

Given an unsigned 32-bit integer $\mathit{x}$, which of the following $\mathit{C}∕\mathit{C}++$ expressions correctly toggles m bits starting from position $\mathit{p}$ (with the least significant bit at position 0 )?
Assume:
- $\mathit{x}$ is the input integer
- $\mathit{p}$ is the starting position of the bit range (0-based, LSB at position 0)
- $\mathit{m}$ is the number of bits to toggle
- No overflow or invalid input occurs Which of the following correctly toggles $\mathit{m}$ bits of $\mathit{x}$ starting from position $\mathit{p}$ ?