our program shall be executed from the command line as below using $3$ command line

arguments.

$>$

where each command line argument is described as below:

: $1$st argument is input file name, i$.$e$.$ name of Zoom meeting report.

: $2$rd argument is minimum duration where we would like display attendees which

attended the meeting at least this minimum duration.

: $3$th argument is optional. If it is not provided, then the output will be provided

in the original order of the records in the input file. If it is provided $($where we enter the word