cf/mirror

Vlad and the Mountains

CF
1851G2000· candidate master5s256 MB⌨ stdin/stdout
#binary search#data structures#dsu#graphs#implementation#sortings#trees#two pointers

Examples

Sample 1of 3
Input
2
7 7
1 5 3 4 2 4 1
1 4
4 3
3 6
3 2
2 5
5 6
5 7
5
1 1 3
6 2 0
4 7 0
1 7 4
1 7 2
6 5
4 7 6 2 5 1
1 3
5 3
1 5
2 4
6 2
5
1 5 1
1 3 1
1 2 1000
6 2 6
6 2 5
Output
YES
NO
YES
YES
NO
 
YES
NO
NO
YES
NO
Sample 2of 3
Input
2
3 2
1 3 9
1 2
2 3
5
1 1 1
3 2 2
1 1 2
3 3 0
1 2 1
3 3
1 4 1
1 2
2 3
1 3
5
3 3 9
1 3 6
1 1 2
3 3 6
3 3 4
Output
YES
YES
YES
YES
NO
 
YES
YES
YES
YES
YES
Sample 3of 3
Input
1
6 10
7 9 2 10 8 6
4 2
6 1
4 5
3 5
6 4
1 3
2 6
6 5
1 2
3 6
5
4 4 8
3 3 1
5 5 9
2 1 7
6 6 10
Output
YES
YES
YES
YES
YES
1851G.cpp
loading editor…
Ln 11·137 BGNU C++20 (64)
loading graph engine…