cf/mirror

Restaurant

CF
597B1600· expert4s256 MB⌨ stdin/stdout
#dp#greedy#sortings

Examples

Sample 1of 3
Input
2
7 11
4 7
Output
1
Sample 2of 3
Input
5
1 2
2 3
3 4
4 5
5 6
Output
3
Sample 3of 3
Input
6
4 8
1 5
4 7
2 5
1 3
6 8
Output
2
597B.cpp
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Ln 11·137 BGNU C++20 (64)