Task array

Given an array of integers X check if adding 1 to any of the elements in array would make it possible to retrieve this element value as a result of summing any other two elements in array.

Example:

• X={1,3,7,3,5} -> return true, because for X[4]+1=X[1]+X[3]: 5+1=3+3
• X={1,4,10} -> return false