Problem 61: Checker output format conflicts with the statement

[weiwch]

The statement requires one integer per test case: the maximum achievable value. The sample output and all provided .ans files use this format.

However, algorithmic/problems/61/check.cpp interprets the first participant output integer as the number of segments d, then reads d pairs (l, r). Therefore, a statement-compliant solution is misparsed and rejected.

For example, the official sample output starts with 3 6. The checker reads 3 as d and 6 as the first segment's left endpoint, which is outside [1, 5], resulting in Wrong Answer.