using this code(PYTHON):def longest_chain(lst: list[int]) -> int:i = 0answer = []while i < len(lst) and lst[i] == 1:answer.append(lst[i])i += 1return sum(answer) How do I solve these two questions def largest_at_position(matrix: list[list[int]], row: int, col: int) -> int:Returns the area of the largest rectangle whose top left corner is atposition , in ,You MUST make use of the helper here as you loop througheach row of the matrix. Do not modify (i.e., mutate) the input matrix.>>> case1 = [[1, 0, 1, 0, 0],[1, 0, 1, 1, 1],[1, 1, 1, 1, 1],[1, 0, 0, 1, 0]]..>>> largest_at_position(case1, 0, 0)4>>> largest_at_position(case1, 2, 0)5>>> largest_at_position(case1, 1, 2)6 def largest in_matrix(matrix: list[list[int]]) -> int:II II ||Returns the area of the largest rectangle in .The area of a rectangle is defined by number of 1's that it contains.Again, you MUST make use of the helper here. If youmanaged to code correctly, this function should besimple to implement.Similarly, do not modify (i.e., mutate) the input matrix.Precondition: will only contain the integers 1 and 0.>>> case1 = [[1, 0, 1, 0, 0],[1, 0, 1, 1, 1],[1, 1, 1, 1, 1],[1, 0, 0, 1, 0]]>>> largest_in_matrix(case1)6

Answered: Returns the area of the largest…

Engineering

Computer Science

Returns the area of the largest rectangle in . The area of a rectangle is defined by number of 1's that it contains.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 19RQ

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