
Prefix function. Knuth–Morris–Pratt algorithm
1. Prefix function definition You are given a string $s$ of length $n$. The prefix function for this string is defined as an array $\pi$ of length […]
1. Prefix function definition You are given a string $s$ of length $n$. The prefix function for this string is defined as an array $\pi$ of length […]
There are $n$ lamps on a line, numbered from $1$ to $n$. Each one has an initial state off ($0$) or on ($1$). You’re given […]