1007. Minimum Domino Rotations For Equal Row 題目敘述 In a row of dominoes, tops[i] and bottoms[i] represent the top and bottom halves of the i**th domino. (A domino is a tile with two numbers from 1 to 6 - one on each half of the tile.) We may rotate th...
389. Find the Difference 題目敘述 You are given two strings s and t. String t is generated by random shuffling string s and then add one more letter at a random position. Return the letter that was added to t. Example 1: Input: s = "abcd", t = "abcde" Ou...
290. Word Pattern 題目敘述 Given a pattern and a string s, find if s follows the same pattern. Here follow means a full match, such that there is a bijection between a letter in pattern and a non-empty word in s. Example 1: Input: pattern = "abba", s = "...
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