Rows and Columns

• Vocabulary

  • row-major order in a 2-D array is 1st row, then 2nd row, then 3rd row, etc.
  • column-major order in a 2-D array is 1st column, then 2nd column, then 3rd column, etc.

• The default interpretation of a 2-D array is to consider the first index the row, and the second index the column:

  • puz[r][c] is the variable in row r and column c
  • puz[r] is row r

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