How to Solve Codeforces Problem #1133A in Python?

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Codeforces Problem #1133A, also known as “Middle of the Contest”, asks us to find the time in minutes that is exactly halfway between the start time and end time of a coding contest, given in the format “hh:mm”.

Here’s how to solve this problem in Python:

# Get the start time and end time in the format "hh:mm"
start_time = input()
end_time = input()

# Convert the start time and end time to minutes
start_minutes = int(start_time[:2]) * 60 + int(start_time[3:])
end_minutes = int(end_time[:2]) * 60 + int(end_time[3:])

# Calculate the halfway time in minutes
halfway_minutes = (start_minutes + end_minutes) // 2

# Convert the halfway time to the format "hh:mm"
halfway_hours = str(halfway_minutes // 60).zfill(2)
halfway_minutes = str(halfway_minutes % 60).zfill(2)

# Print the halfway time
print(f"{halfway_hours}:{halfway_minutes}")

In this solution, we first get the start time and end time of the contest using input(). We then convert the start time and end time to minutes by multiplying the hours by 60 and adding the minutes.

We calculate the halfway time in minutes by taking the average of the start time and end time, rounded down to the nearest integer using //.

We then convert the halfway time back to the format “hh:mm” by dividing the total minutes by 60 to get the hours and taking the remainder to get the minutes. We use the zfill() method to pad the hours and minutes with leading zeros if necessary.

Finally, we print the halfway time using the print() function.

Note: This solution assumes that the start time and end time are on the same day. If the contest starts on one day and ends on the next day, you’ll need to modify the code to handle this case.

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