This folder contains all instances

Filename: n{}_tw_{}h_25x25km_drone{}_{}.dat
 - Number of jobs: 		number right after 'n'
 - TW size:			number right after 'tw' (in hour)
 - percentage jobs eligible:	number right after 'drone' 
 - instance seed:		last number (before '.dat')

Understanding the file:
The first part (before keyword 'compute') is dedicated to jobs characteristics:
Job	{job_name}	{unused_value}	{early_TW}	{late_TW}	{unused_value}	{unused_value}	{X_coord}	{Y_coord}
Example (from 'n20_tw1h_25x25km_drone25_6.dat')
Job	j_8	1	60	120	3	1	12503	16965
Job name: 	'j_8'
TW:		[60, 120] (in minutes)
Coordinates:	(x=12503, y=16965) (in meters)

The second part (after keyword 'compute') is dedicated to distances and travel-times between each pair of jobs:
Matrix	'job_a}	{job_b}	{truck_distance}	{drone_distance}	{truck_travel_time}	{drone_travel_time}
Example (from 'n20_tw1h_25x25km_drone25_6.dat')
Matrix	j_0	j_5	18523	14582	38	20

The truck distance between j_0 and j_5 is 18523 meters
The truck travel-time from j_0 to j_5 is 38 minutes 

The drone distance between j_0 and j_5 is 14582 meters
The drone travel-time from j_0 to j_5 is 20 minutes

If a job cannot be performed by a drone, the drone travel time from any job to the concerned job is set at a sufficiently large value: '10000000'