[Leetcode]- 271. Encode and Decode Strings
Just Finished Day 6 of leetcoding With a medium "271. Encode and Decode Strings" Problem. Honestly at first glance it doesn't seem medium at all. Its like easy easy because I was able to do it under a minute with all test cases. I am still not sure whether that approach was right or no so I checked other solution which was hard way but I did it both the ways and will be sharing those.
Results:
For Approach 1:
https://preview.redd.it/atqt17mrry3d1.png?width=1056&format=png&auto=webp&s=8f6c498d248ec1ac6bcc026138302c5218dad3d2
For Approach 2:
https://preview.redd.it/4vxga5wpry3d1.png?width=1218&format=png&auto=webp&s=599e91546732797399bfb662f9282e2aa217483a
Problem Description:
Design an algorithm to encode a list of strings to a stringDesign an algorithm to encode a list of strings to a string. The encoded string is then sent over the network and is decoded back to the original list of strings.
Machine 1 (sender) has the function:

string encode(vector strs) { // ... your code return encoded_string; } 

Machine 2 (receiver) has the function:

vector decode(string s) { //... your code return strs; }. The encoded string is then sent over the network and is decoded back to the original list of strings. 

Machine 1 (sender) has the function:

string encode(vector strs) { // ... your code return encoded_string; } 

Example 1:

Input: dummy_input = ["Hello","World"] Output: ["Hello","World"] Explanation: Machine 1: Codec encoder = new Codec(); String msg = encoder.encode(strs); Machine 1 ---msg- Machine 2 Machine 2: Codec decoder = new Codec(); String[] strs = decoder.decode(msg); 

Constraints:

• 1 <= strs.length <= 200
• 0 <= strs[i].length <= 200
• strs[i] contains any possible characters out of 256 valid ASCII characters.

Approach 1:
For this approach, I joined first array with non-ascii character "pi" in encode and split on the decode end and that's it. If we read constraints it says string only contains valid ascii character so this approach is 100% valid imo.
Code:

var encode = function(strs) { // return strs.join("π") }; var decode = function(s) { return s.split("π")}; } 

Approach 2 (The Hard way):
In this approach, We have to encode or manupulate the string in such way that we can decode it without using any additional state. What we can do is we can join each string in array with the prefix of the length followed by the "#" (Can be any special characters or even better we can use "PI " symbol here. While it work all the time initially but later figure out it failed for one of the case So I tried different symbol for rust). So after Encode it wold be ["Hello","World"] -> "5#Hello5#World".
For Decoding

• First step would be Loop over the string with variable checking for that it does not exceed the loop
• Next with another loop ( with another count )check wherethe we reach to "#", if we found then create a substring using both the counter and we would get the length of the string.

i.e : len = 5 (5#Hello5#World) ;The fist 5 which is for Hello

• Get the substring again using the length and both those counter, so we will end up having "Hello" string. Increment the count by the length of counter and inner loop count and repeat. Finally return the array

JS Code:

/** * Encodes a list of strings to a single string. * * @param {string[]} strs * @return {string} */ var encode = function(strs) { let st = "" for (const str of strs) { st += `${str.length}#${str}` } return st; // return strs.join("π") }; /** * Decodes a single string to a list of strings. * * @param {string} s * @return {string[]} */ var decode = function(s) { // return s.split("π") let st = []; let i = 0; while(i For Rust:
 By following "#" it did not worked on all the case sometime so I used a liitle bit different variable but overall approach is the same.
 
struct Codec { } /** * `&self` means the method takes an immutable reference. * If you need a mutable reference, change it to `&mut self` instead. */ impl Codec { fn new() -> Self { Codec {} } fn encode(&self, strs: Vec) -> String { let mut encoded = String::new(); for s in strs { encoded.push_str(&format!("{}:{};", s.len(), s)); } encoded } fn decode(&self, s: String) -> Vec { // vec![String::from("value")] let mut i=0; let mut res: Vec = vec![]; while i< s.len() { if let Some(colon_pos) = s[i..].find(":") { let len:usize = s[i..i+colon_pos].parse().unwrap(); let start = i+colon_pos+1; let end=start + len; res.push(s[start..end].to_string()); i = end + 1; } } return res; } } /** * Your Codec object will be instantiated and called as such: * let obj = Codec::new(); * let s: String = obj.encode(strs); * let ans: VecVec = obj.decode(s); */ 
 

Best Breakfast in Prescott Az Are you looking for the best breakfast spots in Prescott, AZ? Well, look no further! We've done the legwork and compiled a comprehensive guide to satisfy your morning cravings.From classic comfort food to innovative and organic dishes, we've got you covered. Whether you prefer cozy diners or upscale bistros, Prescott offers a diverse range of breakfast experiences.Join us as we explore the top spots that not only serve delicious food but also provide charming decor, welcoming atmospheres, and friendly service.Get ready to indulge in a morning feast that will leave you wanting more.Key TakeawaysPrescott, AZ offers a variety of breakfast options, ranging from creative and unique dishes to classic American comfort food.Many of the breakfast establishments in Prescott have a charming and welcoming atmosphere, making them enjoyable places to start the day.Some of the best breakfast places in Prescott are known for their generous portions and mouth-watering meals, including cowboy food and homemade treats.Several breakfast spots in Prescott offer gluten-free and vegan menu options, catering to different dietary preferences and needs.DinerWe should try the Diner on West Gurley Street because it's known for its generous portions and mouth-watering cowboy food. Located in Prescott, Arizona, this breakfast spot is a must-visit for anyone looking for a hearty and delicious start to their day.As you enter the Diner, the pleasant scent of bacon, eggs, and coffee fills the air, instantly awakening your senses. The menu offers a smorgasbord of creative and unique breakfast items, ensuring there's something for everyone. Whether you're a vegan or have dietary restrictions, the Diner has options for you, with a vegan menu and gluten-free choices available.The Diner provides a heavenly breakfast experience with its welcoming atmosphere and friendly staff. The portions are incredibly generous, satisfying even the heartiest of appetites. The mouth-watering cowboy food is a true delight, showcasing the flavors and traditions of the Wild West. From fluffy pancakes to savory omelettes, each dish is prepared with care and attention to detail.Transitioning into the subsequent section about Bistro St. Michael, we can't help but be intrigued by the tantalizing menu and stately downtown views this bistro offers.Bistro St. MichaelThe Bistro St. Michael offers an upscale ambiance and excellent service, making it a great choice for enjoying a delicious meal with a stunning view of downtown Prescott. The bistro is located at the Hotel Saint Michael, providing a picturesque setting for breakfast in Prescott Valley. The menu at Bistro St. Michael is sure to impress foodies, with tantalizing options that cater to all taste preferences. Whether you're craving a classic American breakfast or something more adventurous, this bistro has got you covered. The attentive staff ensures that every guest is well taken care of, adding to the overall dining experience.Here is a table to give you a better idea of what Bistro St. Michael has to offer:FeaturesDetailsAmbianceUpscaleServiceExcellentViewDowntown PrescottLocationHotel Saint MichaelAs you can see, Bistro St. Michael is the perfect place to start your day with a scrumptious breakfast while enjoying the stunning views of downtown Prescott. If you're looking for another top-notch breakfast spot, let's move on to our next discussion topic: Lone Spur Cafe.Lone Spur CafeWhen it comes to breakfast in Prescott, the Lone Spur Cafe stands out with its cowboy-themed menu and generous portions.The cafe's charming decor, adorned with cowboy gear and antler chandeliers, creates an inviting atmosphere for diners.Whether you're in the mood for a hearty cowboy breakfast or a delicious meal for the whole family, the Lone Spur Cafe is sure to satisfy.Cowboy-Themed Breakfast OptionsLet's try the mouth-watering cowboy food at Lone Spur Cafe and explore their cowboy-themed breakfast options!This charming cafe offers a delightful experience with its cowboy-inspired decor, complete with cowboy gear and antler chandeliers. As we enter, the pleasant scent of bacon, eggs, and coffee fills the air, enticing our taste buds.The menu offers a smorgasbord of creative and unique breakfast items, ensuring there's something for everyone. From generous portions of pancakes and eggs to hearty breakfast burritos, Lone Spur Cafe satisfies any cowboy craving. Families will appreciate the kids menu, making it a great spot for breakfast outings.Come and enjoy a heavenly breakfast experience at Lone Spur Cafe, where cowboy food takes center stage.Generous Portions for EveryoneWe can indulge in the generous portions of delicious cowboy food at Lone Spur Cafe, with options that satisfy everyone's appetite.This popular breakfast spot in Prescott offers a wide array of hearty dishes that are sure to leave you satisfied. From fluffy pancakes and crispy bacon to savory omelettes and mouthwatering biscuits and gravy, Lone Spur Cafe has it all.The portions are generous, ensuring that no one leaves hungry. Whether you're a fan of traditional cowboy fare or looking to try something new, this cafe has something for everyone.And the best part? The food is as tasty as it's filling. So, come on down to Lone Spur Cafe and experience the satisfying flavors of cowboy cuisine.As you enjoy your meal, take a moment to soak in the charming decor and inviting atmosphere that surrounds you.Charming Decor and AtmosphereAs we step into Lone Spur Cafe, we're immediately enchanted by the charming decor and cozy atmosphere that transports us to the heart of the Wild West. The rustic cowboy gear and antler chandeliers hanging from the ceiling create a warm and inviting ambiance.The walls are adorned with vintage photographs and paintings that tell the story of the Old West. The wooden furniture and checkered tablecloths add to the nostalgic feel. The aroma of freshly brewed coffee and sizzling bacon fills the air, making our mouths water in anticipation.The friendly staff greets us with a smile and guides us to a comfortable booth. We can't help but feel a sense of belonging in this quaint little cafe.The Peacock Dining RoomThe Peacock Dining Room offers an upscale and good breakfast experience with its exquisite and refined breakfast plates. Located in the charming Hassayampa Inn, this cozy downtown eatery exudes timeless charm and a chic atmosphere.The menu features a variety of delectable options that will satisfy any breakfast craving. From classic favorites like fluffy pancakes and perfectly cooked eggs, to unique dishes such as smoked salmon benedict and avocado toast with poached eggs, there's something for everyone to enjoy.The Peacock Dining Room prides itself on using high-quality ingredients to create their breakfast plates. Each dish is carefully crafted to ensure a delicious and memorable dining experience. The attention to detail is evident in every bite, from the perfectly seasoned bacon to the freshly squeezed orange juice.In addition to the exceptional food, the Peacock Dining Room offers a warm and welcoming atmosphere. The attentive and knowledgeable staff is dedicated to providing excellent service, ensuring that guests feel comfortable and well taken care of. Whether you're enjoying a leisurely breakfast with friends or celebrating a special occasion, the Peacock Dining Room is the perfect place to start your day.Overall, the Peacock Dining Room offers an upscale and good breakfast experience with its exquisite and refined breakfast plates. With its timeless charm, chic atmosphere, and exceptional food, it's a must-visit destination for breakfast in Prescott.Dinner Bell CafeLet's meet up for breakfast at Dinner Bell Cafe and enjoy a delicious meal together. This charming cafe offers a wide variety of options to cure morning cravings. As you step inside, you'll be greeted by the pleasant scent of homemade treats and well-known recipes. The cafe has an easy-going neighborly feel, with a cozy patio that offers a view of Granite Creek.Here are five reasons why Dinner Bell Cafe is a must-visit breakfast spot in Prescott:Homemade Filling Meals: The cafe satisfies guests with generous portions that will leave you feeling satisfied. From fluffy pancakes to savory omelettes, there's something to please every palate.Homemade Treats: Indulge in their delectable selection of pastries and baked goods. From buttery croissants to mouth-watering cinnamon rolls, you'll find the perfect sweet treat to start your day.Welcoming Atmosphere: Dinner Bell Cafe has been a must-visit spot in Prescott for generations. The friendly staff and cozy interior make it the perfect place to gather with friends and family.Wide Variety of Options: Whether you're in the mood for a classic breakfast or something more unique, Dinner Bell Cafe has got you covered. Choose from their extensive menu that includes everything from traditional bacon and eggs to creative breakfast bowls.Patio with a View: Enjoy your meal while taking in the beautiful scenery of Granite Creek from the cafe's patio. It's the perfect spot to relax and start your day off right.WildflowerWildflower is a charming bakery and cafe that offers a unique breakfast experience with its impeccable service, delightful ambiance, and a menu filled with creative and delicious options.From their mouthwatering pancakes to their fresh salads and artisan bread, Wildflower caters to diverse palates with its wide variety of breakfast choices.Whether you're in the mood for something sweet or savory, Wildflower is sure to please with its award-winning bakery and attention to detail.Unique Breakfast Menu ItemsWe've discovered a breakfast spot that offers a multitude of creative and unique menu items to satisfy our morning cravings. At this delightful eatery, we're presented with a mouthwatering selection of breakfast dishes that are both inventive and satisfying. Here are five examples of the delectable options that await us:The 'Sunrise Scramble': A savory combination of fluffy scrambled eggs, crispy bacon, and melted cheddar cheese, all served on a warm toasted croissant.The 'Cinnamon Roll Pancakes': Fluffy pancakes infused with the flavors of a classic cinnamon roll, topped with a generous drizzle of cream cheese glaze.The 'Avocado Benedict': A twist on the classic Eggs Benedict, featuring perfectly poached eggs, creamy avocado slices, tangy hollandaise sauce, and a sprinkle of fresh dill.The 'Berry Blast French Toast': Thick slices of brioche bread dipped in a sweet batter, grilled to perfection, and topped with a medley of fresh berries and a dusting of powdered sugar.The 'Southwest Breakfast Burrito Bowl': A hearty bowl of scrambled eggs, black beans, roasted peppers, and spicy chorizo, all served over a bed of crispy hash browns and smothered in zesty salsa.These unique and flavorful menu items are sure to satisfy any breakfast lover's cravings.Impeccable Service and AmbianceWith its spotlessly clean indoor space and impeccable service, Wildflower provides an exceptional dining experience. As soon as you step inside, you're greeted by a pleasant scent of freshly brewed coffee and the warm ambiance of the restaurant.The staff at Wildflower goes above and beyond to ensure that every customer is well taken care of. From the moment you're seated, they're attentive and prompt in their service, making sure that your needs are met.Whether you're in the mood for pancakes, salad, sandwiches, or artisan bread, Wildflower has a variety of delicious breakfast choices to satisfy your cravings. Not only is the food top-notch, but they also offer free Wi-Fi, making it a great spot for those looking to catch up on work or connect with friends.Wildflower truly stands out with its exceptional service and inviting atmosphere, making it a must-visit destination for breakfast in Prescott.Prescott JunctionI've heard great things about Prescott Junction's extensive menu and tempting breakfast buffet. Located in Prescott, Arizona, this family-friendly joint is known for its classic American comfort food. Under new management, while still retaining its local vibe, Prescott Junction has a loyal following for its appetizing American dishes.Here are five reasons why Prescott Junction stands out:Warm and family-friendly service: From the moment you walk in, you'll be greeted with a smile and a warm welcome. The staff at Prescott Junction goes above and beyond to make you feel like part of their family.Extensive menu: Whether you're in the mood for a hearty breakfast burrito, fluffy pancakes, or a classic eggs Benedict, Prescott Junction has you covered. Their menu offers a wide variety of options to satisfy all cravings.Tempting breakfast buffet: If you're looking for a breakfast feast, Prescott Junction's buffet is a must-try. With a wide selection of hot and cold dishes, fresh fruits, and pastries, you'll find something to please every palate.Under new management: Despite the change in management, Prescott Junction has maintained its reputation for delicious food and a welcoming atmosphere. The new team is dedicated to preserving the restaurant's local charm.Prescott Junction has a loyal following: Locals and visitors alike flock to Prescott Junction for its appetizing American cuisine. The restaurant has built a dedicated fan base who keep coming back for more.With its warm service, extensive menu, and tempting breakfast buffet, Prescott Junction is a popular choice for breakfast lovers in Prescott, Arizona.Frequently Asked QuestionsWhat Are the Vegan Menu Options Available at the Diner?At the diner, there are vegan menu options available. These options cater to individuals who follow a plant-based diet.The diner offers a variety of creative and unique breakfast items that are entirely vegan. Whether you're in the mood for a delicious vegan omelette or a stack of fluffy vegan pancakes, the diner has you covered.The vegan menu at the diner ensures that everyone can enjoy a satisfying and flavorful breakfast experience.Does the Bistro St. Michael Offer Any Gluten-Free Options on Their Menu?Yes, the Bistro St. Michael does offer gluten-free options on their menu.With stately downtown views and an upscale ambiance, this bistro appeals to foodies looking for a delightful breakfast experience. You can enjoy a great view of downtown Prescott while savoring their tantalizing menu.Located at the Hotel Saint Michael, this bistro provides excellent service and ensures that those with gluten sensitivities can still enjoy their delicious breakfast offerings.Are Reservations Required at the Lone Spur Cafe?Reservations aren't required at the Lone Spur Cafe.This charming breakfast spot in Prescott, AZ provides a warm and inviting atmosphere, generous portions of mouth-watering cowboy food, and even a kid's menu for families.The decor is charming, with cowboy gear and antler chandeliers adding to the cozy ambiance.Located on West Gurley Street, the Lone Spur Cafe is a must-visit for a delicious and satisfying breakfast experience.Does the Peacock Dining Room Have Live Jazz Music During Breakfast Hours?Yes, the Peacock Dining Room does have live jazz music during breakfast hours.The atmosphere is timeless and chic, offering an upscale and good breakfast experience.Located at the Hassayampa Inn in downtown Prescott, this cozy eatery provides exquisite and refined breakfast plates.It's a popular destination for those looking for a classy breakfast spot with a touch of live jazz music to enhance their dining experience.Does the Dinner Bell Cafe Offer Any Vegetarian Options on Their Menu?Yes, the Dinner Bell Cafe does offer vegetarian options on their menu. They've a wide variety of choices to satisfy morning cravings, including delicious vegetarian dishes.The cafe is known for its homemade treats and well-known recipes, providing filling meals for breakfast and lunch.With its easy-going neighborly feel and a patio offering a view of Granite Creek, the Dinner Bell Cafe is a must-visit for both vegetarians and non-vegetarians alike.ConclusionIn conclusion, Prescott, AZ offers a vibrant breakfast scene with a variety of options to suit every taste. Whether you prefer the cozy atmosphere of a diner or the upscale elegance of a bistro, you're sure to find a spot that satisfies your cravings.Interestingly, did you know that Prescott has over 20 breakfast establishments to choose from? With such a wide selection, you'll never run out of delicious breakfast options to try in this charming city.