LeetCode/2020 LeetCoding Challenge16 LeetCode. Sort Colors Problems: Given an array with n objects colored red, white or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white and blue. Here, we will use the integers 0, 1, and 2 to represent the color red, white, and blue respectively. Note: You are not suppose to use the library's sort function for this problem. Example: Input: [2,0,2,1,1,0] Out.. 2020. 6. 12. LeetCode. Search Insert Position [Binary Search] Problem: Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array. Example 1: Input: [1,3,5,6], 5 Output: 2 Example 2: Input: [1,3,5,6], 2 Output: 1 Example 3: Input: [1,3,5,6], 7 Output: 4 Example 4: Input: [1,3,5,6], 0 Output: 0 -Summary- 1. if the target .. 2020. 6. 11. LeetCode. Is Subsequence Problem: Given a string s and a string t, check if s is subsequence of t. A subsequence of a string is a new string which is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (ie, "ace" is a subsequence of "abcde" while "aec" is not). Follow up: If there are lots of incoming S, say S1, S2, ... ,.. 2020. 6. 10. LeetCode. Power of Two Problem: Given an integer, write a function to determine if it is a power of two. Example 1: Input: 1 Output: true Explanation: 20 = 1 Example 2: Input: 16 Output: true Explanation: 24 = 16 Example 3: Input: 218 Output: false -Summary- 1. Keep divide number by 2. In the iteration, if any number divide by 2 is not 0, then return False 2. After the loop, return True since the number is a power of .. 2020. 6. 9. 이전 1 2 3 다음
