Write a function to find the biggest digit in a matrix;
input -> a matrix
output -> a digit
[12; 47; 86; 10; 65; 92] = 9
[11; 10; 1; 0; 2] = 2
[11; 10; 1; 0; 22; 20; 12] = 2
the test suit is wrong
hehe, for now there is only one solution which works correctly when there is a NaN or an Inf in the input.
I have added NaN and Inf to the test suites
"the test suit is wrong" statement is not true.
Remove NaN ?
Max index of 3D array
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String permutations on phone keyboard
Mean = Standard Deviation
Write c^3 as sum of two squares a^2+b^2
Your favourite city!
Produce the following matrix
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