Probably caused by not understanding CPU architectures. Comparing two 8-bit integers and two 32-bit integers takes the same number of cycles on a 32-bit processor, but only because the CPU designers have accepted greater space complexity to reduce time complexity.
Comments
Same disclaimer, but yes, assuming constant-time operations on arbitrary-precision integers represents a fairly common mistake in big-O analysis.
Probably caused by not understanding CPU architectures. Comparing two 8-bit integers and two 32-bit integers takes the same number of cycles on a 32-bit processor, but only because the CPU designers have accepted greater space complexity to reduce time complexity.