Solved by calculus

#	Title	# Solved	Avg. Tries
4696	St. Ives	1,591	1.49
4779	Cantoring Along	7,836	2.23
4883	Tri graphs	2,320	3.81
4949	The Balance of the World	40,948	3.04
4963	How Many Islands? STANDARD	27,796	2.00
4999	Aaah! STANDARD	14,646	1.60
5337	Welcome	18,319	1.37
5338	Microsoft Logo	20,688	1.25
5339	Call For Help STANDARD	15,589	1.48
5419	North-Western Winds	1,911	2.89
5430	Integer Lists STANDARD	27,079	4.89
5525	IOIOI	10,891	3.36
5532	방학 숙제	12,253	1.56
5543	상근날드	28,031	1.47
5545	최고의 피자	1,714	2.24
5554	심부름 가는 길 STANDARD	13,971	1.18
5575	타임 카드	6,667	1.31
5582	공통 부분 문자열	6,781	2.35
5585	거스름돈	27,276	1.52
5596	Score	12,359	1.22
5597	Who have not handed in ?	66,097	1.94
5622	BAKA	76,205	1.71
5639	Binary Search Tree	14,154	2.62
5676	Interval Product STANDARD	2,530	3.02
5717	Og	11,910	1.29
5787	Noise Effect	19	1.21
5893	Times17	3,576	1.75
5928	Contest Timing	2,550	1.81
6086	Total Flow	2,653	3.63
6474	Palindromes	80	2.48
6497	Dark roads	5,681	2.85
6549	Largest Rectangle in a Histogram	11,044	3.63
6550	All in All	2,396	2.54
6603	Lotto	26,039	1.80
6749	Next in line STANDARD	7,857	1.14
6778	Which Alien?	3,548	1.45
6887	Squares	1,462	1.45
7287	Registration STANDARD	61,914	1.92
7347	Flip and Shift	122	2.17
7433	Divisibility	21	1.38
7469	K-th Number	1,832	3.07
7568	덩치	51,854	1.78
7569	토마토 STANDARD	32,453	2.33
7576	토마토 STANDARD	52,460	2.68
7578	공장	3,806	2.55
7579	앱 STANDARD	9,329	2.99
7662	Dual Priority Queue	13,069	4.53
7789	Is it tele-prime?	768	1.90
7869	Circular Area	1,324	3.28
8094	Canoes	68	1.87

1578910111317