2016年1月27日 · That's why when you dereference pp[0] explicitly, with *pp[0], you are dereferencing it effectively twice: First you look at the contents of the address 0x2000, which is 0x1000, and then you dereference that in order to read the memory at 0x1000.

2023年1月13日 · First of all, you don't get to pick the decomposition. So one decomposition you'd need to handle is $x = \varepsilon$, $y = 00$, $z = 0^{2p-2}$. Now if we pump $y$ for $i$ times, we get $xy^iz = 0^{2p + 2i - 2}$, which belongs to $L$.

2014年12月22日 · 0L is a long integer value with all the bits set to zero - that's generally the definition of 0. The ~ means to invert all the bits, which leaves you with a long integer with all the bits set to one.

The string $0^{3p}$ can always be pumped so that it stays in $L$. Recall what the pumping lemma says: there exists a $p \in \mathbb{N}$ such that any $w \in L$ of size at least $p$ can be written as $w=uvxyz$ such that $|vxy| \leq p$, $|vy| \geq 1$ …

2011年8月12日 · 0x0UL is an unsigned long zero, expressed using hexadecimal notation. 0x0UL == 0UL. LL designates a literal as a long long and UL designates one as unsigned long and 0x0 is hexadecimal for 0. So 0LL and 0x0UL are an equivalent number but different datatypes; the former is a long long and the latter is an unsigned long.

0.5pp通常指的是百分比增长的【绝对值】，即由 1%增长至1.5%，叫增长0.5pp; 0.5%很多时候会用来做【相对增长的比值】，即由 1%增长到1.005%，叫增长0.5%

2017年2月9日 · Consider the language L = {0p ∣ p is a composite number}. I know that this is not a regular language. I have thought that to prove this language is not regular take the complement (prime numbers) which must be regular, but its complement has prime numbers and 0 and 1 occurrences of 0's.

$L^0$ norm is defined as: $$ L^p = (\sum_i|x_i|^p)^{(1/p)} $$ with $p=0$. Now this is argued to count the number nonzero elements in a vector $\textbf{x}$. If this is taken to be true, then the summation should be $1$ for any $x\neq0$ , which is true, but also $0^0$ should be $0$, which seems contradictory to arguments in calculus.

2010年7月15日 · *p and p[0] are the same. Here are some neat features you want to know: "Pointer notation" generally refers to using the 'dereference' (or 'indirection') operator "Array notation" generally refers to using the brackets and offset value; You can represent an address in memory using either interchangeably: *p is equivalent to p[0]

" O.P.P. " is a song by American hip hop group Naughty by Nature, released in August 1991 by Tommy Boy as the lead single from the group's self-titled second album (1991). It was one of the first rap songs to become a pop hit when it reached No. 6 on the US Billboard Hot 100 and No. 35 on the UK Singles Chart.