answer:Here's a winning plan for a game of Connect Four against an opponent who always goes first: 1. Start by placing your first disc in the middle column. This gives you the most options for future moves. 2. From here, focus on building two separate lines of three discs in a row. This will give you two potential ways to win the game. 3. Try to block your opponent's attempts to build their own lines of three, while also continuing to build your own. 4. Be patient and think several moves ahead. Look for opportunities to set up multiple potential wins at once, and try to force your opponent to make defensive moves that will limit their own options. 5. If your opponent makes a mistake, be sure to capitalize on it and take advantage of any openings they give you. By following these steps, you can increase your chances of winning a game of Connect Four against an opponent who always goes first. Good luck!

answer:The dynamic programming approach for finding the longest common subsequence between two strings involves creating a matrix where the rows represent the characters of the first string (s1) and the columns represent the characters of the second string (s2). The formula for the approach is as follows: - If the characters in the current row and column match, add 1 to the value in the cell diagonally above and to the left of the current cell. - If the characters do not match, take the maximum value between the cell above and the cell to the left of the current cell. The time complexity of this approach is O(m*n), where m and n are the lengths of the input strings s1 and s2, respectively. The space complexity is also O(m*n), as we need to create a matrix of size m x n to store the values. One optimization to the approach is to use a 1D array instead of a matrix to store the values. This reduces the space complexity to O(min(m, n)), as we only need to store the values for the shorter string. Another optimization is to use memoization to store the values of previously calculated subproblems, which can further improve the time complexity.

answer:Here is an HTML page code that highlights the key differences between data science and artificial intelligence.

answer:The correct pronoun to use in place of the missing blank space is textbf{he}. text{John and underline{hspace{1cm}}} went to the store. I chose "he" as the correct pronoun because "John" is a male name, and in English grammar, the pronoun used to refer to a singular male subject is "he". If the other individual accompanying John was female, the correct pronoun would be "she". If the gender of the individual is unknown or non-binary, the pronoun "they" could be used. The context of the sentence is also important in determining the correct pronoun to use. In this case, since there is no additional information about the individual, we can only assume their gender based on the name "John".