51. Sorting #3
There are n points given in the coordinate plane. First, sort these points by the x coordinate. If the x coordinates are equal, sort by the y coordinate.
Input
The first line contains a natural number n that does not exceed 1000.
The next n lines contain the coordinates of the points, x and y. Their values do not exceed 1000.
Output
The points sorted in n lines.
Sample input 1
5 4 1 1 6 2 3 1 4 2 4
Sample output 1
1 4 1 6 2 3 2 4 4 1
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NormalData structures
119 / 15
Solved / unsolved count
1.0 s / 512 MB
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