Day - 10

Hello, dears. It is me again! I am coming up with a good solution for the LeetCode problem. You know, consistency is key to success. So I am trying my best to complete my challenge on time. I appreciate your attention.

If you like this post, share it with your friends. Maybe, because of you someone starts a challenge on himself or herself.

Ok, we will continue! You can see my solution below!

1. Problem 1002. Find Common Characters

var commonChars = function (words) 
  let res = [];
  let hash = hashWord(words[0]);


  for (let i = 1; i < words.length; i++) {
    let word = words[i];
    let tempHash = hashWord(word);
    merge(hash, tempHash);
  }


  for (let [letter, count] of Object.entries(hash)) {
    while (0 < count--) {
      res.push(letter);
    }
  }


  return res;
};


function hashWord(word) {
  let hash = {};
  for (let i = 0; i < word.length; i++) {
    let letter = word[i];
    if (hash[letter]) {
      hash[letter]++;
    } else {
      hash[letter] = 1;
    }
  }
  return hash;
};


function merge(hash1, hash2) {
  for (let letter of Object.keys(hash1)) {
    if (!hash2[letter]) {
      delete hash1[letter];
    } else {
      hash1[letter] = Math.min(hash1[letter], hash2[letter]);
    }
  }
};        

Huuhh. This solution made me think more than others.

Thanks for your valuable time! I will come up with other solutions in the next few days!

See you!

#leetcode #programming #coding #challenge #javascript #algorithms