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Vitor Oliveira 2021-06-08 11:36:07 -07:00 • committed by GitHub
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7
dynamic_programming/pascal_triangle_ii.rb
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@ -25,21 +25,28 @@
def get_num(row, col) def get_num(row, col)
return 1 if row == 0 || col == 0 || row == col return 1 if row == 0 || col == 0 || row == col
get_num(row - 1, col - 1) + get_num(row - 1, col) get_num(row - 1, col - 1) + get_num(row - 1, col)
end end
def get_row(row_index) def get_row(row_index)
result = [] result = []
(row_index + 1).times do |i| (row_index + 1).times do |i|
result.push(get_num(row_index, i)) result.push(get_num(row_index, i))
end end
result result
end end
row_index = 3 row_index = 3
print(get_row(row_index)) print(get_row(row_index))
# => [1,3,3,1] # => [1,3,3,1]
row_index = 0 row_index = 0
print(get_row(row_index)) print(get_row(row_index))
# => [1] # => [1]
row_index = 1 row_index = 1
print(get_row(row_index)) print(get_row(row_index))
# => [1,1] # => [1,1]