QOJ.ac
QOJ
			Time Limit:
			20 s		
				Memory Limit:
			256 MB		
				Total points:
			100		
									
#1154. Wombats
Statistics
			The problem was used in the following contests:
					
		
		The problem is available in the following languages:
		C++98, C++11, C++14, C++17, C++20