Non duplicate values using array

Question

https://code.sololearn.com/c3A81A9A19A1

in this code, the non duplicate values are not printed..Done according to the solution.

Answer 1

You are assigning values in loop into array by
for(int j=0; j<subscript; j++)
But j<subscript is false initially, and not changing subscript value. Because never enter into loop and not assigning array values so all a[I]=0 only....

Answer 2

Thank you@jaya

Answer 3

the question is from the book C++ how to program Harvey M Deitel
4.15 Use a single-subscripted array to solve the following problem. Read in 20 numbers, each of which is between 10 and 100,
inclusive. As each number is read, print it only if it is not a duplicate of a number already read. Provide for the “worst case” in which
all 20 numbers are different. Use the smallest possible array to solve this problem.