100 atcoder#ABC137B. [ABC137B] One Clue
[ABC137B] One Clue
Score : points
Problem Statement
There are stones placed on a number line. The coordinates of these stones are $-1000000, -999999, -999998, \ldots, 999999, 1000000$.
Among them, some consecutive stones are painted black, and the others are painted white.
Additionally, we know that the stone at coordinate is painted black.
Print all coordinates that potentially contain a stone painted black, in ascending order.
Constraints
- All values in input are integers.
Input
Input is given from Standard Input in the following format:
Output
Print all coordinates that potentially contain a stone painted black, in ascending order, with spaces in between.
3 7
5 6 7 8 9
We know that there are three stones painted black, and the stone at coordinate is painted black. There are three possible cases:
- The three stones painted black are placed at coordinates , , and .
- The three stones painted black are placed at coordinates , , and .
- The three stones painted black are placed at coordinates , , and .
Thus, five coordinates potentially contain a stone painted black: , , , , and .
4 0
-3 -2 -1 0 1 2 3
Negative coordinates can also contain a stone painted black.
1 100
100