assume user can input 2 integers, let it be (15,3) so we have to print all the possible sums of 3 digits which equals input1(15)

Question

answer should be printed as
1+2+12=15
1+3+11=15
1+4+10=15 and so on.. Note that no digits are repeating here.

Answer 1

Not strictly true the first digit in your example is always 1

Answer 2

no, it can be anything but it should not repeat.
@A^dr3w