A rust implementation of a brute-force pcp solution searcher. A problem is read from standard input or a file specified on the command line (see Usage for more details).
A problem file consists of any number of (utf-8 encoded) lines, each non-empty line representing a pair of words, consisting of two whitespace-separated fields, each of which denotes one word of the pair.
Words may consist of any number of non-whitespace unicode characters, each unique character will be replaced by a unique fixed-width bit pattern. The total number of bits per word must not exceed 56.
See the *.pcp files in the root directory for example problem specifications. The wiki*.pcp files were taken from the german wikipedia, homework.pcp was taken from an exercise of my theoretical computer science class.
``` plain pcp 0.1.0 Tim Neumann mail@timnn.me A brute-force pcp solution searcher
USAGE: pcp [FLAGS] [OPTIONS]
FLAGS: -h, --help Prints help information -V, --version Prints version information
OPTIONS:
-f
``` plain pcp < homework.pcp Found 2 symbols. Using 1 bit(s) to encode each symbol. Running with 8 threads. Now starting iteration 183 Now starting iteration 197 Now starting iteration 207 Now starting iteration 213 success! n: 216, s: 396
-- Statistics -- chunk size: 64 MB chunks allocated: 39 chunks deallocated: 0 chunks total memory: 2.4 GB chunks in current working set: 32 pairs applied: 1.1 billion pairs applied successfully: 403.4 million number of iterations: 217 total iteration time: 5.7 seconds operations: 196.0 thousand ops/ms ```
You need a recent nightly version of rust to compile this crate. You can then install it using cargo install pcp. If you install from source make sure to compile with --release!