which of the following statements are true: i - every problem can be solved with an algorithm for all inputs, but some of these algorithms have not yet been discovered ii - every problem can be solved with an algorithm for all inputs, but some problems cannot be solved in a reasonable amount of time iii - there exist problems that cannot be solved by any algorithm for all inputs which of the following statements are true: i - every problem can be solved with an algorithm for all inputs, but some of these algorithms have not yet been discovered ii - every problem can be solved with an algorithm for all inputs, but some problems cannot be solved in a reasonable amount of time iii - there exist problems that cannot be solved by any algorithm for all inputs i only ii only i and ii iii only
