Nested Try for a Score Lookup

The function scoreAt(const std::vector<int>& scores, int index) is already written: it returns the score at index, or throws a std::out_of_range when there is no such student. A stored score of -1 means "not recorded". Write showScore(const std::vector<int>& scores, int index) with a try INSIDE another try:

- the inner try calls scoreAt; if the score is below 0 it throws a std::invalid_argument with the message Score not recorded; otherwise it prints Score: and the score - the inner catch handles only std::out_of_range, printing Index problem: and the message - after the inner try/catch, still inside the outer try, print Lookup finished - the outer catch handles std::invalid_argument, printing Data problem: and the message

An exception that the inner handler does not match keeps travelling outwards, so the std::invalid_argument skips the inner catch AND the Lookup finished line and lands in the outer handler.

The tests call showScore for several indexes.

Do NOT write a main function.

Expected Output:

Score: 80↵
Lookup finished↵
Data problem: Score not recorded↵
Index problem: No student at that index↵
Lookup finished↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Exceptions

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