How to Solve Codeforces 677A in Python?

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Codeforces problem 677A, also known as “Vanya and Fence”, asks us to calculate the minimum width of a fence needed to prevent a person of height h from passing, given the heights of n friends and the width of the fence.

Here’s how to solve this problem in Python:

# Get the number of friends and the height of the fence
n, h = map(int, input().split())

# Get the heights of the friends
heights = list(map(int, input().split()))

# Initialize the width of the fence
width = n

# Loop over the heights of the friends
for height in heights:
    # If the friend is taller than the fence, increase the width by 1
    if height > h:
        width += 1

# Print the minimum width of the fence
print(width)

In this solution, we first get the number of friends and the height of the fence using map(int, input().split()). We then get the heights of the friends using list(map(int, input().split())).

We initialize the width of the fence to n, since each friend can walk through the fence without any issues.

We then loop over the heights of the friends using a for loop. For each friend, if their height is greater than the height of the fence, we increase the width of the fence by 1 using width += 1.

Finally, we print the minimum width of the fence using print(width).

Note: This solution assumes that the width of the fence is not a factor in preventing the person from passing. If the width of the fence is a factor, you’ll need to modify the code to account for this.

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