Useful links

* https://blog.algomaster.io/p/how-i-mastered-data-structures-and-algorithms

* https://blog.algomaster.io/p/15-leetcode-patterns

* https://blog.algomaster.io/p/resources-for-big-tech-interviews

I have failed Google coding interview today, let's save it here.

I applied to google jobs from careers page, and hr reached out to me. We had a call and he gave me a mock google interview. Mock interview was fine, got some positive feedback, but as usual couldn't solve the problem. Then a real assesment interview started and I failed from the first problem below:

The problem:
input is a list of ranges
[[2,4],[4,5],[4,5]]

output - all possible numbers by concatinating numbers from ranges
244, 245, ..., 344

to be clear:
Input:
A list of ranges, where each range is represented as a 2-element array [start, end] (inclusive).
Example: [[2, 4], [4, 5], [4, 5]]

Output:
An array of strings. Each string represents a number formed by picking one digit from each range in the given order.
Example Output for above input:
["244", "245", "254", "255", "344", "345", "354", "355", "444", "445", "454", "455"]



The solution I wrote:
const findNumbers = (ranges) =>{
  let rangeLength = ranges.length;
    
  const buildCombination(arr, r, path){
    let res = []
    if(r === rangeLength){
      res.push(path)
      return res
    }

    for(let i=arr[0]; i<= arr[arr.length-1]; i++){
      path = ${path}${i}
      buildCombination(ranges[r+1], r+1, path)
     
    }
  }
  
  return buildCombination(ranges[0], 0, '')
  
}

🤔 Algoritmlarni Nimadan O'rganishni Boshlashni Bilmaganlar Uchun

Shu yerdan boshlanglar — https://neetcode.io/practice?tab=neetcode250. Hammasi bitta joyda.

Zo‘r resurs, zo‘r darslik topishda emas sir — balki nimadandir boshlashda, va ichingizda qiziqish yondirishda. 

1 - 2 misol yechsangiz har kuni, 5 oyda tugatasiz. Har kuni 1 - 2 soatdan misollar yechishingiz kerak. Tugatasiz, va Google, Meta, Amazon, Yandex, ... kompaniyalarga ishga kirasiz, va ko'p pul qilib, katta loyihalarda foydali experience olasiz.

Just be ready when you get your chance and don't miss it.

@cracking_maang

SOME TIPS:

* https://www.youtube.com/watch?v=OMkfujDPpwc
* https://www.youtube.com/watch?v=XOtrOSatBoY
* https://www.youtube.com/watch?v=6ZZX9iIgFoo

* https://www.interviewcake.com/python-interview-questions
* https://hackernoon.com/14-patterns-to-ace-any-coding-interview-question-c5bb3357f6ed