WebYou need to dynamically allocate your matrix. For instance: int* mat; int dimx,dimy; scanf ("%d", &dimx); scanf ("%d", &dimy); mat = malloc (dimx * dimy * sizeof (int)); This creates a linear array which can hold the matrix. At this point you can decide whether you want to access it column or row first. WebIn your display for loop, you started from i = numbers which is out of the array's range. Since the array starts from 0 till size - 1, then you need to start from i = numbers - 1 all the way to >=0. Share Improve this answer Follow answered Apr 6, 2016 at 23:08 Khalil Khalaf 9,139 11 60 102 Add a comment 0
python - How do I create 3x3 matrices? - Stack Overflow
WebAug 3, 2024 · Using two nested for loops we traverse through each element of the array and take the corresponding user inputs. In this way, the whole array gets filled up, and we … WebAug 9, 2024 · We create a 3D array to store these 8 matrices. Now we check the input matrix for each of these 8 matrices and find out the one which can be obtained with the least number of changes. Implementation: C++ Java Python3 C# Javascript Output 2 1. 3. 5. Fill missing entries of a magic square 9. Minimum array element changes to make its … teacher appreciation day lunch ideas
C Multidimensional Arrays (2d and 3d Array) - Programiz
WebApr 6, 2024 · If you have a modern C compiler you can do the following for 2D matrices of any sizes. void ins (size_t rows, size_t columns, int matrix [rows] [columns]); Important is that the sizes come before the matrix, such that they are known, there. Inside your function you then can access the elements easily as matrix [i] [j] and the compiler is doing ... WebJul 25, 2024 · If n = 1 or m = 1 then there is only one way of filling the matrix therefore answer is 1. If none of the above cases are applicable then we fill the first rows and the first columns with 1 and -1. Then the remaining numbers can be uniquely identified since the product of each row an each column is already known therefore the answer is . WebJul 2, 2015 · A 3x3 matrix would have valid indices of [0], [1], and [2] for the rows and columns. So you should only loop i = 0; i < 3; ++i – Cory Kramer Sep 19, 2014 at 15:41 You forgot to do the top level push_back in option 3 – flakes Sep 19, 2014 at 15:47 Show 1 more comment 3 You have not allocated any space for your 2d vector. teacher appreciation dinner