Solved by ijungkong

#	Title	# Solved	Avg. Tries
10718	We love kriii STANDARD	181,788	1.53
10172	Dogs STANDARD	175,136	2.34
10171	Cats STANDARD	179,114	2.81
6603	Lotto	25,360	1.79
2557	Hello World STANDARD	346,204	2.54
2220	Heapsort	611	1.75
1260	DFS와 BFS STANDARD	70,917	2.63

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