![]() Each diagonal in the upper right triangle of the rectangular grid is sorted in descending order. Each diagonal in the lower left triangle of the rectangular grid is sorted in ascending order. Given an NxM 2D matrix, rearrange such that. A type of array in which two indices refer to the position of a data element as against just one, and the entire representation of the elements looks like a table with data being arranged as rows and columns, and it can be effectively used for performing from. Medium Accuracy: 67.57 Submissions: 5377 Points: 4. This function does comparison in a way that puts greater elements before. We can pass greater () function to sort in descending order. ![]() Here, we will read vectors by their names to make it easy but you can change their names if you want. Arrangement of elements that consists of making an array, i.e. sort () takes a third parameter that is used to specify the order in which elements are to be sorted. We can also define the number of rows and columns, if required but if the number of values in the vector are not a multiple of the number of rows or columns then R will throw an error as it is not possible to create a matrix for that vector. ![]() ![]() So, the requirement depends on what he meant by '2D array': if he means what the C++ standard calls a 2D array, then yes, it must be contiguous. To convert a vector into matrix, just need to use matrix function. Martin, well, the standard specifies a multidimensional array as contiguous (8.3.4). ![]()
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