answer：Okay, I need to write a Python function that takes a list of strings, each representing a book, and converts them into a list of dictionaries with specific keys: 'title', 'author', and 'year'. Let's think about how to approach this.First, each string in the input list is formatted as "Title, Author, Year". So, for each string, I can split it into parts using the comma as a delimiter. But wait, I should make sure to split on commas and then strip any extra whitespace from each part.So, for example, taking the first string: "The Great Gatsby, F. Scott Fitzgerald, 1925". Splitting by commas would give me ["The Great Gatsby", " F. Scott Fitzgerald", " 1925"]. Then, I can strip each part to remove leading and trailing whitespace.Once I have the three parts, I can assign them to the respective keys in a dictionary. So, the first part is the title, the second is the author, and the third is the year.I'll need to loop through each string in the input list. For each string, perform the split and strip, then create a dictionary and add it to the result list.Let me outline the steps:1. Initialize an empty list to hold the dictionaries.2. Loop over each book string in the input list.3. For each book string: a. Split the string into parts using split(','). b. Strip whitespace from each part. c. Create a dictionary with keys 'title', 'author', 'year' and assign the corresponding parts. d. Append this dictionary to the result list.4. Return the result list.Wait, what if a book's title or author contains a comma? Oh, but according to the problem statement, each string is properly formatted with title, author, year separated by commas. So I don't need to handle cases where the title or author has a comma. That simplifies things.So, for each book string, splitting by commas will give exactly three elements. So, I can safely take the first as title, second as author, third as year.Let me test this logic with the sample input.Sample input:books = [ "The Great Gatsby, F. Scott Fitzgerald, 1925", "To Kill a Mockingbird, Harper Lee, 1960", "1984, George Orwell, 1949"]Processing the first string:Split into ["The Great Gatsby", " F. Scott Fitzgerald", " 1925"]Stripping each gives "The Great Gatsby", "F. Scott Fitzgerald", "1925"Dictionary: {'title': 'The Great Gatsby', 'author': 'F. Scott Fitzgerald', 'year': '1925'}Same for the others. So the logic works.Now, how to implement this in Python.Function steps:Define a function, maybe called parse_books, which takes a list of strings as input.Initialize an empty list, book_list.Loop through each book_str in books: parts = book_str.split(',') if len(parts) != 3: # Maybe handle error, but problem says each string is correct. title = parts[0].strip() author = parts[1].strip() year = parts[2].strip() book_dict = {'title': title, 'author': author, 'year': year} book_list.append(book_dict)Return book_list.Wait, but what if a book string has more than three parts? Like, if the title has a comma. But according to the problem statement, each string is correctly formatted, so each has exactly three parts.So, the code can proceed without error checking.Testing the sample input:After processing, the output should match the expected list of dictionaries.Another test case: what if the year is something like '2023'? It should still be a string, as per the sample output.So, the function should handle that.Now, writing the code.Function:def parse_books(books): book_list = [] for book_str in books: parts = book_str.split(',') title = parts[0].strip() author = parts[1].strip() year = parts[2].strip() book = {'title': title, 'author': author, 'year': year} book_list.append(book) return book_listYes, that should do it.Testing with the sample input:books = [ "The Great Gatsby, F. Scott Fitzgerald, 1925", "To Kill a Mockingbird, Harper Lee, 1960", "1984, George Orwell, 1949"]result = parse_books(books)print(result)Should output the expected list.I think this should work.

answer：Okay, I need to write a Python function to calculate the total sales revenue from selling weight-loss supplements during an infomercial. The input is a list of tuples, and each tuple has the quantity sold and the price per unit. The function should return the total revenue as a float.Hmm, let's think about how to approach this. So, for each tuple in the list, I need to multiply the quantity by the price, then sum all those products together.Wait, right. So, for example, if the input is [(10, 19.99), (5, 49.99), (3, 29.99)], then for each tuple:10 * 19.99 = 199.905 * 49.99 = 249.953 * 29.99 = 89.97Adding them up: 199.90 + 249.95 is 449.85, plus 89.97 gives 539.82? Wait, wait, wait. Wait, no, wait. Let me calculate again.Wait, 10 * 19.99 is 199.90, correct. 5 * 49.99 is 249.95. 3 * 29.99 is 89.97. So adding 199.90 + 249.95 gives 449.85. Then adding 89.97 gives 539.82. But the example says the expected output is 549.70. Oh, wait, maybe I miscalculated.Wait, wait, let me compute again. 10 * 19.99 is 199.90. 5 * 49.99 is 249.95. 3 * 29.99 is 89.97. So 199.90 + 249.95 is 449.85. Then 449.85 + 89.97 is 539.82. But the example expects 549.70. Did I make a mistake?Wait, maybe I added wrong. Let me add 199.90 and 249.95. 199.90 + 249.95: 199 + 249 is 448, 0.90 + 0.95 is 1.85, so total 449.85. Then adding 89.97: 449.85 + 89.97. Let's see: 449 + 89 is 538, 0.85 + 0.97 is 1.82, so total 539.82. But the expected output is 549.70. Hmm, that's a problem. Did I read the example correctly?Wait, looking back. Oh, wait, maybe the example is correct. Let me check the example again. The input is [(10, 19.99), (5, 49.99), (3, 29.99)]. So 10 * 19.99 is 199.90, 5 * 49.99 is 249.95, 3 * 29.99 is 89.97. Summing these: 199.90 + 249.95 is 449.85, plus 89.97 is 539.82. But the expected output is 549.70. So why is there a discrepancy?Wait, maybe I misread the numbers. Let me check the example again. Oh, wait, perhaps the third tuple is (3, 29.99). So 3 * 29.99 is 89.97. So total is 199.90 + 249.95 + 89.97 = 539.82. But the expected output is 549.70. So perhaps I made a mistake in the example's numbers.Wait, maybe the example is correct, but I'm miscalculating. Let me try adding again.199.90 + 249.95 = 449.85. Then 449.85 + 89.97. Let's compute 449.85 + 80 is 529.85, plus 9.97 is 539.82. So that's correct. But the example says 549.70. So perhaps the example is wrong, or maybe I'm misunderstanding the problem.Wait, perhaps the example is correct, and I'm missing something. Let me check the example again. Oh wait, perhaps the tuples are (quantity, price), but maybe the function is supposed to sum all the individual revenues. So perhaps the example is correct, but I'm miscalculating.Wait, perhaps I should write down the calculation step by step.First tuple: 10 * 19.99 = 199.90.Second tuple: 5 * 49.99 = 249.95.Third tuple: 3 * 29.99 = 89.97.Adding them: 199.90 + 249.95 = 449.85. Then 449.85 + 89.97 = 539.82.But the example expects 549.70. So there's a problem here. Maybe the example is incorrect, or perhaps I'm misunderstanding the problem.Wait, perhaps the example's expected output is wrong. Or maybe I made a mistake in the calculation.Alternatively, perhaps the function is supposed to return the sum rounded to two decimal places, but in the example, 539.82 is not 549.70. So perhaps the example is incorrect, but I should proceed as per the problem statement.Alternatively, perhaps I made a mistake in the example. Let me recheck the example.Wait, the example says the input is [(10, 19.99), (5, 49.99), (3, 29.99)] and the output is 549.70. So perhaps I miscalculated.Wait, let me compute each part again.10 * 19.99: 19.99 * 10 is 199.90.5 * 49.99: 49.99 *5 is 249.95.3 * 29.99: 29.99 *3 is 89.97.Sum: 199.90 + 249.95 is 449.85. 449.85 +89.97 is 539.82.Hmm, that's 539.82, but the example expects 549.70. So perhaps the example is wrong, or perhaps I'm misunderstanding the problem.Alternatively, perhaps the tuples are (price, quantity) instead of (quantity, price). Let me check the problem statement again.The problem says each tuple contains the quantity sold and the price per unit. So the first element is quantity, the second is price. So the calculation is correct as per the example.Wait, but 539.82 is not 549.70. So perhaps the example is incorrect, but I should proceed as per the problem statement.So, the function needs to take a list of tuples, each with (quantity, price), multiply each pair, sum all, and return as a float.So, the steps are:1. Initialize a total revenue variable to 0.2. Iterate over each tuple in the input list.3. For each tuple, multiply the first element (quantity) by the second (price), add to total.4. After processing all tuples, return the total as a float.So, in Python, the function can be written as:def calculate_revenue(sales_data): total = 0.0 for quantity, price in sales_data: total += quantity * price return totalWait, but in the example, this function would return 539.82, but the expected output is 549.70. So perhaps the example is wrong, or perhaps I'm misunderstanding the problem.Alternatively, perhaps the function is supposed to return the sum rounded to two decimal places, but in the example, 539.82 is not 549.70. So perhaps the example is incorrect.Alternatively, perhaps the example's input is different. Let me check the example again.Wait, the example input is [(10, 19.99), (5, 49.99), (3, 29.99)]. Let me compute each product:10 * 19.99 = 199.905 * 49.99 = 249.953 * 29.99 = 89.97Sum: 199.90 + 249.95 = 449.85 + 89.97 = 539.82.So the function would return 539.82, but the example expects 549.70. So perhaps the example is wrong, or perhaps I'm missing something.Wait, perhaps the example's expected output is a typo. Alternatively, perhaps the function is supposed to sum the quantities and multiply by the average price or something else, but that's not what the problem says.So, perhaps the example is incorrect, but I should proceed as per the problem statement.So, the function is straightforward: for each tuple, multiply quantity by price, sum all, return as float.So, the code would be as I wrote earlier.Testing the example, the function returns 539.82, but the expected output is 549.70. So perhaps the example is wrong, but I should proceed.Another test case: let's say the input is [(2, 10.0), (3, 20.0)]. Then the function should return 2*10 + 3*20 = 20 +60=80.0.Yes, that makes sense.So, the function is correct, and perhaps the example's expected output is wrong.Alternatively, perhaps I made a mistake in the example's calculation. Let me check again.Wait, 10 * 19.99 is 199.90.5 * 49.99 is 249.95.3 * 29.99 is 89.97.Adding them: 199.90 + 249.95 = 449.85. 449.85 +89.97 is 539.82.So, perhaps the example is wrong. But regardless, the function should be written as per the problem statement.So, the function is correct.Another thing to consider: in Python, when dealing with floating points, sometimes there can be precision issues. But the problem says to return the total as a float, so that's acceptable.So, the function is as written.

answer：Okay, I need to write a Python function called decode_string that takes an encoded string and returns the decoded version. The encoding scheme is such that each letter is followed by a number indicating how many times it should appear consecutively. For example, "a3b2c1" becomes "aaabbc".Hmm, so the input is a string where each character is a lowercase letter followed by a number. But wait, what if the number is more than one digit, like "a10b2"? Then the letter 'a' should appear 10 times, followed by 'b' twice. So I need to handle multi-digit numbers.So the approach is to parse the string, identify each letter and the number that follows it, then build the decoded string by repeating each letter the specified number of times.How to parse this? I think I can iterate through each character in the string, but I need to collect the letters and their corresponding numbers.Let me think about the steps:1. Initialize an empty result string.2. Iterate through each character in the encoded string.3. For each character, determine if it's a letter or a number.4. When a letter is found, start collecting the subsequent digits to form the number.5. Once the number is determined, append the letter repeated by that number to the result.6. Continue until the entire string is processed.Wait, but how do I know when the number ends? Because the number can be multiple digits. So for each letter, the next characters are digits until a non-digit is found, which would be the next letter.Alternatively, perhaps a better way is to split the string into parts where each part is a letter followed by a number. For example, in "a3b2c1", the parts are "a3", "b2", "c1".So the plan is to split the string into these letter-number pairs, then process each pair.But how to split them? Because the letters are lowercase, so any lowercase letter starts a new pair. So perhaps I can loop through the string, and whenever I encounter a letter, I note its position and then find the next letter's position to determine where the number ends.Alternatively, perhaps a regular expression would be useful here. A regex pattern that matches a letter followed by one or more digits. So the pattern would be something like ([a-z])(d+).Yes, that makes sense. So using re.findall, I can find all occurrences of this pattern. Each match will be a tuple where the first element is the letter and the second is the number.So for "a3b2c1", re.findall(r'([a-z])(d+)', encoded) would give [('a','3'), ('b','2'), ('c','1')].Once I have this list of tuples, I can loop through each, convert the number string to an integer, and then repeat the letter that many times, appending to the result.So putting it all together:- Use regex to find all letter-number pairs.- For each pair, create the repeated string and add to the result.Let me think about possible edge cases. What if the encoded string is empty? Then the function should return an empty string.What about if the number is zero? But according to the problem statement, the input is a string where each letter is followed by a positive integer, so zero isn't allowed. So we don't have to handle that case.Another case: the encoded string could be something like "a10b2c3d4". The regex would correctly capture 'a' with '10', 'b' with '2', etc.So the steps in code would be:1. Import re module.2. Define the function.3. Use re.findall to get all the letter-number pairs.4. Initialize the result as an empty string.5. For each pair in the list: a. letter = pair[0] b. num = int(pair[1]) c. result += letter * num6. Return the result.Wait, but what if the encoded string is not properly formatted? Like, what if it starts with a number, or has a letter without a following number? According to the problem statement, the input is a string that follows the scheme, so each letter is followed by a number. So we don't have to handle invalid inputs.So the code would be something like:import redef decode_string(encoded: str) -> str: pattern = re.compile(r'([a-z])(d+)') matches = pattern.findall(encoded) result = '' for m in matches: letter = m[0] num = int(m[1]) result += letter * num return resultWait, but what about the case where a letter is followed by multiple digits, like 'a123'? The regex will capture '123' as the number, which is correct.Testing the example: "a3b2c1" should return "aaabbc".Let's see: the matches are [('a','3'), ('b','2'), ('c','1')]. So the result is 'a'*3 + 'b'*2 + 'c'*1 = 'aaabbc' which is correct.Another test case: 'a10b2' should become 'aaaaaaaaaab' followed by 'bb', so 'aaaaaaaaaabb'.Another test case: 'z1' should return 'z'.What about an empty string? The function returns an empty string, which is correct.So this approach should handle all cases correctly.I think this should work.

answer：Okay, I need to write a Python function to determine if a given year is a leap year. Hmm, let's think about the rules for leap years.So, the rules are:1. Every year that is exactly divisible by 4 is a leap year, except for years that are exactly divisible by 100.2. However, years that are exactly divisible by 400 are leap years.Wait, so the steps are:- First, check if the year is divisible by 4. If not, it's not a leap year.- But if it is divisible by 4, then we need to check if it's divisible by 100. If it is, then it's not a leap year unless...- Unless it's also divisible by 400. Then it is a leap year.So, putting it in order:- If year is divisible by 400 → leap year.- Else, if divisible by 100 → not leap.- Else, if divisible by 4 → leap.- Else → not leap.Alternatively, another way to structure the conditions:A year is a leap year if:(year is divisible by 4 and not divisible by 100) OR (divisible by 400).Yes, that makes sense.So, in code, the function can be written as:def is_leap_year(year): if year % 400 == 0: return True elif year % 100 == 0: return False elif year % 4 == 0: return True else: return FalseAlternatively, using the OR condition:return (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0)Which is more concise.Let me test this logic with the examples given.Example 1: 20002000 % 400 is 0 → returns True. Correct.Example 2: 19001900 % 400 is 300, so not. Then check if 1900 % 100 is 0 → yes. So returns False. Correct.Example 3: 20242024 %4 is 0, but not divisible by 100. So returns True. Correct.What about other cases?Year 2004: 2004 /4=501, no remainder. 2004%100 is 4, so not 0. So leap year.Year 1900: as above.Year 2017: not divisible by 4 → not leap.Year 2400: 2400%400=0 → leap.Year 2100: 2100%400 is 300, so not. Then check if 2100%100 is 0 → yes. So not leap.So the code should handle all these cases.I think the concise version using the OR condition is better. So the function can be written as:def is_leap_year(year): return year % 400 == 0 or (year % 4 == 0 and year % 100 != 0)Wait, wait. Wait, the order matters. Because if a year is divisible by 400, it should return True regardless of the other conditions. So the OR condition correctly captures that.Yes, because in the OR, if the first condition is true (divisible by 400), it returns True. Otherwise, it evaluates the second part: divisible by 4 and not by 100.So that should work.So the function is straightforward. Let me code that.

answer：Okay, I need to write a Python function that converts a list of temperatures from Celsius to Fahrenheit. Hmm, let's think about how to approach this.First, I remember the formula for conversion: F = C * 9/5 + 32. So for each temperature in the input list, I'll apply this formula.Wait, the input is a list of integers or floats. So I need to loop through each element in the list. For each element, I'll calculate the Fahrenheit value.Oh right, and the output should be a list of the same length. So I'll create a new list to store the converted temperatures.Also, the output needs to be rounded to two decimal places. So after calculating each Fahrenheit value, I should round it to two decimals.Let me outline the steps:1. Define a function, maybe call it celsius_to_fahrenheit, that takes a list as input.2. Initialize an empty list to hold the results.3. Loop over each temperature in the input list.4. For each temperature, apply the formula to convert to Fahrenheit.5. Round the result to two decimal places.6. Append this rounded value to the results list.7. After processing all elements, return the results list.Wait, what about the data types? Since the input can be integers or floats, but the formula works with both. So no issues there.Let me think about the example given. Input [0, 20, 37, 100] should give [32.0, 68.0, 98.6, 212.0]. Let's test the formula:0 * 9/5 = 0 +32 =32.0. Correct.20 *9=180, /5=36 +32=68. Correct.37 *9=333, /5=66.6 +32=98.6. Correct.100 *9=900/5=180 +32=212. Correct.So the formula works. Now, how to implement this in Python.So the function could look like this:def celsius_to_fahrenheit(temperatures): fahrenheit = [] for c in temperatures: f = c * (9/5) + 32 f_rounded = round(f, 2) fahrenheit.append(f_rounded) return fahrenheitWait, but wait. What about when the number after rounding has only one decimal place, like 32.0? The example shows 32.0, which is two decimal places. So using the round function with two decimals should handle that.Testing the example: input [0,20,37,100] should give [32.0, 68.0, 98.6, 212.0]. Let's see:For 0: 0*9/5=0 +32=32.0 → rounded to two decimals is 32.0.Yes, that's correct.Another test case: what if the input is a float like 25.5?25.5 *9=229.5 /5=45.9 +32=77.9 → rounded to two decimals is 77.9.Wait, 77.9 is one decimal place, but when rounded to two, it's 77.90? Or does the round function handle that? Wait, in Python, round(77.9, 2) is 77.9, but when printed, it's 77.9, but as a float, it's stored as 77.9, but when you print it, it shows as 77.9, not 77.90. But the problem says to round to two decimal places, so perhaps we should format it to have exactly two decimal places, but in the output, it's a float. So 32.0 is the same as 32.00 in two decimal places.Wait, but in the example, the output is [32.0, 68.0, 98.6, 212.0]. So 32.0 is two decimal places, but 98.6 is one. Wait, 98.6 is already two decimal places? No, 98.6 is one decimal place. Wait, no, 98.6 is one decimal place. Wait, no, 98.6 is one decimal digit. So why is the example showing 98.6 as the output?Wait, let me recalculate 37 degrees Celsius.37 *9=333 /5=66.6 +32=98.6. So that's correct. So 98.6 is one decimal place, but the problem says to round to two decimal places. So why is the example showing 98.6?Wait, maybe I'm misunderstanding the problem. Let me check the example again.In the example, the output is [32.0, 68.0, 98.6, 212.0]. So 98.6 is one decimal place. But the problem says to round to two decimal places. So perhaps the example is just showing it as 98.6, but in reality, it's 98.60, but in Python, when you round 98.6 to two decimals, it remains 98.6, but as a float, it's stored as 98.6, but when printed, it's 98.6, not 98.60.Wait, but 98.6 is the same as 98.60 in terms of value, but when rounded to two decimal places, 98.6 is 98.60. So perhaps the function should round to two decimal places, but the example is just showing it without the trailing zero.So in the function, I'll round each value to two decimal places, which will handle both cases where the result has one or two decimal digits.So the function as written should handle that.Another thing to consider: what if the input list is empty? The function should return an empty list, which it does.What about negative temperatures? For example, -40 degrees Celsius. Applying the formula: -40 *9/5 = -72 +32 = -40. So the function should handle that correctly.So putting it all together, the function should loop through each temperature, apply the formula, round to two decimals, and collect the results.I think that's the correct approach.

answer：Okay, I need to write a Python function called total_album_playtime that takes a list of song durations and returns the total playtime in MM:SS format. Hmm, let's think about how to approach this.So each duration is a string like "03:45". I need to parse each of these strings into minutes and seconds, convert them into total seconds, sum all of them, and then convert that total back into MM:SS format.Wait, right. So the steps are:1. Iterate over each duration string in the input list.2. For each string, split it into minutes and seconds. Like, for "03:45", split into 3 and 45.3. Convert those into integers. So 3 minutes is 3*60 seconds, plus 45 seconds.4. Sum all these converted seconds to get the total.5. Once I have the total seconds, I need to convert it back into minutes and seconds.6. Then format it into a string with leading zeros if necessary.Let me think about how to split each string. Using the split(':') method should work. So for a string s, s.split(':') gives a list of two elements: [minutes, seconds].Wait, but what if the string is something like "1:05"? Splitting gives ['1', '05'], which is fine. So converting each part to integers should handle that.So for each duration in durations: split into m, s = s.split(':') total_seconds += int(m)*60 + int(s)Yes, that makes sense.Once I have the total_seconds, I need to calculate the total minutes and remaining seconds.Total minutes is total_seconds // 60, and the remaining seconds is total_seconds % 60.But wait, what if the total_seconds is, say, 125 seconds? That's 2 minutes and 5 seconds. So 125//60 is 2, 125%60 is 5.So, for example, if the total is 665 seconds, that's 11 minutes and 5 seconds, which is the sample input.So after calculating total_seconds, I can compute:minutes = total_seconds // 60seconds = total_seconds % 60Then, I need to format this into a string with two digits for minutes and two for seconds, padding with leading zeros if necessary.So, for example, if minutes is 3, it becomes '03', and seconds 45 becomes '45'.Wait, but what if minutes is 0? Like if the total is 59 seconds, then minutes is 0, seconds is 59. So the string should be '00:59'.So, the formatting needs to ensure that both parts are two digits, adding leading zeros if they are single digits.In Python, I can format this using f-strings with formatting. Like f"{minutes:02}:{seconds:02}".Yes, that should handle all cases.Putting it all together:Initialize total_seconds to 0.Loop through each duration in the input list: split into m and s. add m*60 + s to total_seconds.Then calculate minutes and seconds.Then format and return.Wait, but what about edge cases? Like empty list? Well, according to the problem statement, the input is a list of strings, so it's possible that the list is empty. In that case, the total is 0, so the output is "00:00".Another edge case: a song duration is "00:00", which contributes nothing.Another case: a song duration is "59:59", which is 59*60 +59 = 3599 seconds. Adding another "00:01" would make 3600, which is 60 minutes, so the output is "60:00".Wait, but in the output, how is that handled? Because 60 minutes is 1 hour, but the problem expects MM:SS, so 60:00 is correct.So the code should handle that.Now, let's think about the code structure.Function definition:def total_album_playtime(durations): passInside the function:Initialize total_seconds = 0for duration in durations: m, s = duration.split(':') total_seconds += int(m)*60 + int(s)Then compute minutes and seconds:minutes = total_seconds // 60seconds = total_seconds % 60Then format as f"{minutes:02}:{seconds:02}"Return that string.Wait, but what if the total_seconds is 0? Like, if durations is empty. Then minutes is 0, seconds is 0, so the output is "00:00", which is correct.Testing the sample input:["03:45", "04:30", "02:50"]Each song:3*60 +45 = 2254*60 +30 = 2702*60 +50 = 170Total: 225+270=495 +170=665 seconds.665 //60 is 11, 665%60 is 5. So 11:05, which is correct.Another test case: empty list. Should return "00:00".Another test case: ["00:00"], returns "00:00".Another test case: ["59:59", "00:01"] → 59*60+59=3599, plus 1 → 3600. 3600//60=60, 3600%60=0 → "60:00".Yes.So the code seems solid.Now, let's write it.Wait, but in Python, when you split, you have to make sure that each duration is properly split into two parts. What if a duration is invalid, like "123"? Or "12:3:45"? Well, the problem says that each duration is in the format "MM:SS", so we can assume that each string is correctly formatted with exactly one colon and two digits each.So no error checking is needed.So the code:def total_album_playtime(durations): total_seconds = 0 for duration in durations: m, s = duration.split(':') total_seconds += int(m) * 60 + int(s) minutes = total_seconds // 60 seconds = total_seconds % 60 return f"{minutes:02}:{seconds:02}"Wait, but in Python, the f-strings format 02 as two digits, padding with zero. So 5 becomes 05, 10 becomes 10, 0 becomes 00.Yes.Testing the sample:print(total_album_playtime(["03:45", "04:30", "02:50"])) → "11:05"Which is correct.Another test case: ["01:00", "02:30"] → 60 + 150 = 210 seconds → 3:30 → "03:30".Yes.Another test case: ["00:01", "00:02"] → 3 seconds → "00:03".Yes.So the code should handle all cases.