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In Pascal's triangle, each number is the sum of the two numbers directly above it.
Example:
Input: 5 Output: [ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4,1] ]
class Solution {
public:
};
public:
};
文章来源: Pascal's Triangle
In Pascal's triangle, each number is the sum of the two numbers directly above it.