Given n as input, generate a n-by-n matrix 'O' using 0 and 1 .
[1 1 1 1
1 0 0 1
1 0 0 1
1 1 1 1]
three solution, all great.
Project Euler: Problem 10, Sum of Primes
Set some matrix elements to zero
MATCH THE STRINGS (2 CHAR) very easy
Test Problem; Create a 5x5 array containing all ones
Find the nearest prime number
World Cup 2018 Prediction!
Win all the time!
Prime numbers between a , b.
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