HackerRank - Paste #2

Problem:

In this challenge, we practice using the paste command to merge lines of a given file.

You are given a CSV file where each row contains the name of a city and its state separated by a comma. Your task is to restructure the file so that three consecutive rows are folded into one line and are separated by semicolons.

# Input

• Albany, N.Y.
• Albuquerque, N.M.
• Anchorage, Alaska
• .
• .
• .
• Bridgeport, Conn.

# Output

• Albany, N.Y.;Albuquerque, N.M.;Anchorage, Alaska
• Asheville, N.C.;Atlanta, Ga.;Atlantic City, N.J.
• Austin, Texas;Baltimore, Md.;Baton Rouge, La.
• Billings, Mont.;Birmingham, Ala.;Bismarck, N.D.
• Boise, Idaho;Boston, Mass.;Bridgeport, Conn.

# Solution

            
    paste -d ';' --- $1
    

    
    paste -s -d ';;\n'
    

Post:

• 2025-04 - Paste #3;