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题目：Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array.ExampleFor sequence = [1, 3, ...

Given a rectangular matrix containing only digits, calculate the number of different 2 × 2 squares in it.ExampleFormatrix = [[1, 2, 1], [2, 2, 2], [2, 2, 2], [1, 2, 3], ...