Problem 1227. Generate a random matrix A of (1,-1)

Input n: is an positive integer which serves as the dimension of the matrix A;

Output: A=(Aij),where each entry Aij is either 1 or -1 which is generated randomly.

For n<1 the function should deliver an empty matrix.

Solve

Solution Stats

48.58% Correct | 51.42% Incorrect
Last Solution submitted on Dec 16, 2025

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