Day 1

Hello friends. I am going to start to share my coding challenge on LinkedIn today. I started it 3 days before on my LeetCode and GitHub pages. But after a while, I decided to share it using LinkedIn to show more people and to give more information.

On the first day, I solved 3 problems on LeetCode. The list of problems is below:

1. Problem 28. Find the first occurrence in the string. You can see my solution here as well.

/*
 * @param {string} haystack
 * @param {string} needle
 * @return {number}
 */
	

var strStr = function (haystack, needle) {
  // checks full string named needle exists in haystack
  if (haystack.includes(needle)) {
    // if it returns true we will get the firs occurance using 
    // .indexOf() method
    return haystack.indexOf(needle);
  } else {
	return -1;
  }
};        

2. Problem 58. Length of the last word. The solution is below.

/*
 * @param {string} s
 * @return {number}
 */
	
var lengthOfLastWord = function (s) {
  s = s.trim().split(" ");
  let lastWord = s[s.length - 1].length;
  return lastWord;
};        

3. Problem 67. Add Binary

  var addBinary = function (a, b) 
    let len1 = a.length,
      len2 = b.length,
      max = Math.max(len1, len2),
      res = "",
      carry = 0,
      val = 0;

    for (var i = 0; i < max; i++) {
      val = Number(a[len1 - 1 - i] || 0) + Number(b[len2 - 1 - i] || 0) + carry;
      carry = Math.floor(val / 2);
      res = (val % 2) + res;
    }
  
    if (carry) res = 1 + res;
  
    return res;
   }        

Thank you for your time investing in my post. If you find it useful, share it with your friends.

My repository for challenges:

My LeetCode profile:

#leetcode #coding #challenges #programming