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Description Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue¡ The
Lunar New Year was approaching, but unluckily the Little Cat still had
schedules going here and there. Now, he had to travel by train to
Mianyang, Sichuan Province for the winter camp selection of the
national team of Olympiad in Informatics. It was one o¡¯clock a.m.
and dark outside. Chill wind from the northwest did not scare off the
people in the queue. The cold night gave the Little Cat a shiver. Why
not find a problem to think about? That was none the less better than
freezing to death! People kept jumping the queue. Since it was
too dark around, such moves would not be discovered even by the people
adjacent to the queue-jumpers. ¡°If every person in the queue is
assigned an integral value and all the information about those who have
jumped the queue and where they stand after queue-jumping is given, can
I find out the final order of people in the queue?¡± Thought the Little
Cat. Input There will be several test cases in the input. Each test case consists of N + 1 lines where N (1 ¡Ü N ¡Ü 200,000) is given in the first line of the test case. The next N lines contain the pairs of values Posi and Vali in the increasing order of i (1 ¡Ü i ¡Ü N). For each i, the ranges and meanings of Posi and Vali are as follows: There no blank lines between test cases. Proceed to the end of input. Output For
each test cases, output a single line of space-separated integers which
are the values of people in the order they stand in the queue. Sample Input Sample Output Hint The
figure below shows how the Little Cat found out the final order of
people in the queue described in the first test case of the sample
input. ![]() Source |
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