Black Circles

2002C1200· pupil2s256 MB⌨ stdin/stdout

Examples

Sample 1of 1

Input

7
3
2 5
2 14
10 13
4 9 9 7
3
10 11
6 9
12 12
14 13 4 8
1
5 7
12 6 11 13
2
1000000000 2
2 1000000000
1 1 2 2
1
999999998 1000000000
999999999 999999999 1 1
1
1000000000 1
1 1000000000 1 1
10
989237121 2397081
206669655 527238537
522705783 380636165
532545346 320061691
207818728 199485303
884520552 315781807
992311437 802563521
205138355 324818663
223575704 395073023
281560523 236279118
216941610 572010615 323956540 794523071

Output

YES
NO
YES
YES
YES
NO
YES

2002C.cpp

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Ln 11·137 BGNU C++20 (64)