Petrozavodsk Programming Camp Summer 2021 Day 5: 2021 Shanghai ICPC Camp Onsite 2 by PKU

	#	Title
A	23138	Swapping Inversions
B	23139	Hamiltonian Path
C	23140	Minimal Cyclic Shift
D	23141	Interval
E	23142	PlayerUnknown's Battlegrounds
F	23143	Sum
G	23144	Reasonable Workplace Relationship
H	23145	Historic Breakthrough
I	23146	Nondeterministic Finite Automaton
J	23147	Texas Hold 'em