3、在Python中难点应该就是每行的第一个元素和最后一个元素,最后一个元素通过判断j==i就可以区分了; 1classSolution:2#@return a list of lists of integers3defgenerate(self, numRows):4ret =[]5foriinrange(numRows):6ret.append([1])7forjinrange(1,i+1):8ifj==i:9ret[i].append(1)10else...
代码:oj测试通过 Runtime: 46 ms 1classSolution:2#@return a list of lists of integers3defgenerate(self, numRows):4ifnumRows < 1:5return[]6pascal =[]7first_row = [1]8pascal.append(first_row)9foriinrange(1,numRows):10tmp =[]11tmp.append(1)12forjinrange(len(pascal[i-1])):13i...
输入: numRows = 5 输出: [[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]] Given an integer numRows, return the first numRows ofPascal's triangle. InPascal's triangle, each number is the sum of the two numbers directly above it as shown: 我的代码 importcopyclassSo...
Given an index k, return the kth row of the Pascal’s triangle. For example, given k = 3, Return [1,3,3,1]. Note: Could you optimize your algorithm to use only O(k) extra space? Ways 杨辉三角。这个题之前用java做过,不过现在改用python重新刷。 杨辉三角的算法是上层的两个相邻的数字...
In Pascal’s triangle, each number is the sum of the two numbers directly above it. Example: Input: 3 Output: [1,3,3,1] 1. 2. Follow up: Could you optimize your algorithm to use only O(k) extra space? 题目大意 计算杨辉三角的第k行是多少。
118:Pascal's Triangle 杨辉三角 Given a non-negative integernumRows, generate the firstnumRowsof Pascal's triangle. 给定一个非负整数numRows,生成杨辉三角的前numRows行。 img In Pascal's triangle, each number is the sum of the two numbers directly above it. ...
代码(Python3) classSolution:defcandy(self,ratings:List[int])->int:n:int=len(ratings)# 将 ratings 收集成 (rating, index) 的列表,# 然后按照 rating 升序排序,方便后续状态转移cells:List[Tuple[int,int]]=[(rating,i)fori,ratinginenumerate(ratings)]cells.sort()# dp[i] 表示第 i 个孩子分到...
0118 Pascal's Triangle c++ python Easy 0119 Pascal's Triangle II c++ python Easy 0120 Triangle c++ python Medium 0121 Best Time to Buy and Sell Stock c++ python go Easy 0122 Best Time to Buy and Sell Stock II c++ python Easy 0123 Best Time to Buy and Sell Stock III c++ python Hard ...
There are a lot of benefits of using Python IDE like developing a better quality code, debugging features, justifying why notebooks are handy, getting all the features like compiling and deploying, in one place by making it easier for the developer. ...
max_in_array.py maximum_subarray_sum.py merge_sort.py min_max_array_oneLoop.py move_zeros_to_end.py no_sibling_tree.py oddAscEvenDesc.py pascal_triangle.py pascals_triangle_improved.py permutations.py permute_strings.py preorder_iterative_bst.py ...