I'm afraid that didn't work - your output (once I created a 'sub print_result', that is :) ) looked like this: 

[ -1, 5, 1 ],
[ 1, 5, 1 ],
[ 3, 4, 1 ],
[ 5, 1, 1 ],
[ -23, -64, 0 ],
[ -5, 1, 1 ],
[ 30, 0, 1 ],
[ -5, 0, 1 ],
[ 0, -45, 1 ],
[ 0, 10, 1 ]

[download]
which skipped some lines. For comparison, choroba's was 
[-1 5 1]
[0 10 1]
[1 5 1]
[3 4 1]
[5 1 1]
[30 0 1]
[0 -45 1]
[-23 -64 0]
[-5 0 1]
[-5 1 1]

[download]

which was correct. 

-- 
I hate storms, but calms undermine my spirits.
 -- Bernard Moitessier, "The Long Way"

In reply to Re^2: Summing up duplicate lines by oko1
in thread Summing up duplicate lines by oko1

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