list of classical problems

97864-noip-problems-and-similar

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
1475	Play with Digit Seven	3	130	37.22	28 12
1536	Help Blue Mary Please! (Act III)		30	19.57
1552	Mobiles		186	27.77	34 34
1553	Backup Files	3	938	21.10	9 42
1554	Zoo		114	28.45
1671	Another Mathematical Problem		63	11.62
1687	Logic II	1	27	13.45	34 34
1688	A Very Easy Problem!	40	6165	49.18	12 11
2005	Minus Operation	8	305	33.28	30 30
2007	Another Very Easy Problem! WOW!!!	17	781	39.07	13 28
2008	Dab of Backpack	17	670	23.63	21 17
2070	Minimum Distance		83	16.58	17 1
3105	Power Modulo Inverted	6	1111	27.13	15 23
3464	Clock	3	59	37.78	34 9