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back to boardIf answer too big...clarification here Problem ambiguous but finally solve! I scratched head for longest time, so clarification here to help others Do not worry, no answer writed, only clarification: IMPORTANT 1: One step = one grid COLUMN. Example show 2 steps: * ** Example show 2 steps: * ** ** Example show 4 steps: * * * ** *** **** IMPORTANT 2: Step HEIGHT > before step height. Example show all VALID N = 7: VALID Staircase #1 of 4 * * * * * ** VALID Staircase #2 of 4 * * * ** ** VALID Staircase #3 of 4 * ** ** ** VALID Staircase #4 of 4 * * ** *** Example of INVALID N = 7: INVALID Staircase: * * * * * * * Invalid because only 1 step INVALID Staircase: * *** *** Invalid because 2 steps same height (height 2, height 2, height 3) INVALID Staircase: * * * * *** Invalid because step height not > before step (height 3, height 1, height 3) |
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