use std::io::{self, BufRead}; use std::time::Instant; mod graph; use crate::graph::Graph; mod theorems; use crate::theorems::{basic, forbidden, toughness}; struct Counters { graphs: i32, tough_1: i32, tough_2: i32, bch_hamiltonian: i32, t15_hamiltonian: i32, t25_hamiltonian: i32, dirac_hamiltonian: i32, ore_hamiltonian: i32, posa_hamiltonian: i32, t3_1: i32, t3_2: i32, c3_5: i32, t85: i32, t86: i32, t87: i32, t88: i32, t96: i32, conj17: i32, all_2c: i32, } impl Counters { fn new() -> Counters { return Counters { graphs: 0, tough_1: 0, tough_2: 0, bch_hamiltonian: 0, t15_hamiltonian: 0, t25_hamiltonian: 0, dirac_hamiltonian: 0, ore_hamiltonian: 0, posa_hamiltonian: 0, t3_1: 0, t3_2: 0, c3_5: 0, t85: 0, t86: 0, t87: 0, t88: 0, t96: 0, conj17: 0, all_2c: 0, }; } } fn main() { let stdin = io::stdin(); let mut time = 0; let mut counters = Counters::new(); for line in stdin.lock().lines() { let line = line.unwrap(); let g = Graph::from_g6(&line); counters.graphs += 1; let start = Instant::now(); let closure = g.get_closure(); let is_complete = closure.is_complete(); let toughness = if g.is_complete() { f64::MAX } else { g.get_toughness() }; if toughness >= 1.0 { counters.tough_1 += 1; } if toughness >= 2.0 { counters.tough_2 += 1; } let min_degree = g.min_degree() as f64; if forbidden::theorem3_1(&g) { counters.t3_1 += 1; println!("g6:t3_1:{}", line); } if forbidden::theorem3_2(&g) { counters.t3_2 += 1; println!("g6:t3_2:{}", line); } if forbidden::corollary3_5(&g) { counters.c3_5 += 1; println!("g6:c3_5:{}", line); } if forbidden::theorem85(&g) { counters.t85 += 1; println!("g6:t85:{}", line); } if forbidden::theorem86(&g) { counters.t86 += 1; println!("g6:t86:{}", line); } if forbidden::theorem87(&g) { counters.t87 += 1; println!("g6:t87:{}", line); } if forbidden::theorem88(&g) { counters.t88 += 1; println!("g6:t88:{}", line); } if forbidden::theorem96(&g) { counters.t96 += 1; println!("g6:t96:{}", line); } if forbidden::conjecture17(&g) { counters.conj17 += 1; println!("g6:conj17:{}", line); } if forbidden::theorem_all_2con(&g) { counters.all_2c += 1; println!("g6:all_2c:{}", line); } if toughness::theorem15(&g, toughness, min_degree) { counters.t15_hamiltonian += 1; println!("g6:bigalke-jung:{}", line); } if toughness::theorem25(&g, toughness, min_degree) { counters.t25_hamiltonian += 1; println!("g6:bauer:{}", line); } if basic::dirac_theorem(&g) { counters.dirac_hamiltonian += 1; println!("g6:dirac:{}", line); } if basic::ore_theorem(&g) { counters.ore_hamiltonian += 1; println!("g6:ore:{}", line); } if basic::posa_theorem(&g) { counters.posa_hamiltonian += 1; println!("g6:posa:{}", line); } if is_complete { counters.bch_hamiltonian += 1; println!("g6:bondy-chvatal:{}", line); } if is_complete && false { println!("Graph: {line}\n{g}"); let components_count = g.count_components(); println!("Components count: {components_count}"); let min_degree = g.min_degree(); println!("Minimal degree: {min_degree}"); let cutset = g.max_independent_cutset(); println!("Maximal independent cutset:\n{}", cutset.graph); println!("Included vertices: {:?}", cutset.vertices); println!("Cutset cardinality: {}", cutset.cardinality); let cycle = basic::bondy_chvatal_hamiltonian_cycle(&g); print!("Hamiltonian cycle: "); let start = 0; let mut current = start; loop { print!("{}", current + 1); print!(" -> "); current = cycle[current]; if current == start { println!("{}", current + 1); break; } } } let elapsed = start.elapsed(); time += elapsed.as_nanos(); } println!("Total count of graphs: {}", counters.graphs); println!("Count of 1-tough graphs: {}", counters.tough_1); println!("Count of 2-tough graphs: {}", counters.tough_2); println!( "Count of Dirac's Hamiltonian graphs: {}", counters.dirac_hamiltonian ); println!( "Count of Ore's Hamiltonian graphs: {}", counters.ore_hamiltonian ); println!( "Count of Posa's Hamiltonian graphs: {}", counters.posa_hamiltonian ); println!( "Count of Bondy-Chvatal Hamiltonian graphs: {}", counters.bch_hamiltonian ); println!( "Count of Theorem 15 Hamiltonian graphs: {}", counters.t15_hamiltonian ); println!( "Count of Theorem 25 Hamiltonian graphs: {}", counters.t25_hamiltonian ); println!("Time elapsed: {}s", time as f64 / 1e9); }