How to code this?//

#1

how will i going to find k value??

#2

If you have a solution of equation of ax+by = gcd(a,b) , then you can manipulate the equation to get the value of z and y for the equation ax+by = c. Let the x be x1 and y be y1 from the equation (ax+by = gcd(a,b) ) , then for the equation ax + by = c , the value of x and y will be a(x1c/g) + b(y1c/g) = gg/g -> [ax1c/g + by1*c/g = c] , only if c is multiple of gcd(a,b).
You can read every thing here.
Explained briefly -:
https://cp-algorithms.com/algebra/linear-diophantine-equation.html

#3

that document was really helpful but couldnt able to understand how to find the family of solution and solution in a paticular range( CODE)

#4

That is just shifting of points. Try some examples on notebook and you will get it.

#5

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