robert-king

# incomplete code by @robertkingNZ of team @perplexico_

import sys
import collections

Library = collections.namedtuple('Library', ['id', 'signup', 'per_day', 'bookids'])

def get_problem_from_file(f):
    lines = (line for line in f.read().splitlines())
    rows = (list(map(int, line.split())) for line in lines)

robert-king

package main

import (
	"math/rand"
	"fmt"
	"time"
	"sort"
)

const N = 1 << 20

robert-king

// @robertkingnz
// this rust implementation reduces the number of centers that need checking
// it does so by only trying one possible center for each group of repeating characters.
// this is one of the few 0ms solutions on leetcode,
// although there is a faster, more complex, O(N) solution possible.

impl Solution {
    pub fn longest_palindrome(s: String) -> String {
        let b = s.as_bytes();
        fn expand(mut i: usize, mut j: usize, b: &[u8]) -> (usize, usize) {

robert-king

use std::cmp::Reverse;

fn main() {
    let (r, w) = (std::io::stdin(), std::io::stdout());
    let mut sc = IO::new(r.lock(), w.lock());

    let t: usize = sc.read();
    for case_num in 1..=t {
        let mut heap = std::collections::BinaryHeap::new();
        let n: usize = sc.read();

robert-king

fn main() {
    let (r, w) = (std::io::stdin(), std::io::stdout());
    let mut sc = IO::new(r.lock(), w.lock());

    let t: usize = sc.read();
    for case_num in 1..=t {
        let mut v: Vec<usize> = sc.chars().into_iter().map(|c| {
            ((c as u8) - b'0') as usize
        }).collect();

robert-king

/*
twitter: @robertkingnz
youtube: https://www.youtube.com/c/RobertKing/videos

topological sort found here: https://github.com/kenkoooo/competitive-programming-rs/blob/master/src/graph/topological_sort.rs
Google Code Jam 2022 Chain Reactions: https://codingcompetitions.withgoogle.com/codejam/round/0000000000876ff1/0000000000a45ef7
*/

pub fn topological_sort(graph: &[Vec<usize>], mut fun: Vec<u64>) -> u64 {
    let n = graph.len();

robert-king

// video here: https://www.youtube.com/c/RobertKing/videos

fn dist(x: u64, y: u64) -> u64 {
    if x <= y {
        return y - x;
    }
    x-y
}

fn min(x: u64, y: u64) -> u64 {

robert-king

// problem: https://codingcompetitions.withgoogle.com/codejam/round/0000000000435915/00000000007dc20c
// video:   https://www.youtube.com/c/RobertKing/videos
// twitter: https://twitter.com/robertkingNZ

pub struct Combination {
    fact: Vec<usize>,
    inv_fact: Vec<usize>,
    modulo: usize,
}

robert-king

/*
problem: https://codingcompetitions.withgoogle.com/kickstart/round/00000000008f4a94/0000000000b55465
youtube: https://youtu.be/Yvj18KBThsE  (subscribe)
twitter: https://twitter.com/robertkingNZ (follow)
*/


use std::collections::VecDeque;
use std::usize;

robert-king

/*
https://www.youtube.com/c/RobertKing/videos
@robertkingnz
problem: https://www.facebook.com/codingcompetitions/hacker-cup/2011/round-1a/problems/C
video: 
*/

use std::collections::HashMap;

pub struct Combination {