Count total number of digits from 1 to n.
since from [1-9] total 9 digits.[10-13] total 4*2=8 digits.
In the 5th test case there is number n=10000675820025; which is very large number MATLAB is not accepting to get number from 1 to 10000675820025;
that means u need to find some alternate way to solve
Flip the main diagonal of a matrix
Pi Estimate 1
Divisible by 4
How many ways?
remove numbers from a string
Connect Four - 03
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