TroubleTime Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3856 Accepted Submission(s): 1223Problem DescriptionHassan is in trouble. His mathematics teacher has given him a very difficult
The King’s Ups and DownsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 151 Accepted Submission(s): 92Problem DescriptionThe king has guards of all different heights. Rather than line them
A strange liftTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7965 Accepted Submission(s): 3002Problem DescriptionThere is a strange lift.The lift can stop can at every floor as you want,
Pen CountsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 246 Accepted Submission(s): 144Problem DescriptionChicken farmer Xiaoyan is getting three new chickens, Lucy, Charlie and CC. She
Counterfeit DollarTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 274 Accepted Submission(s): 117Problem DescriptionSally Jones has a dozen Voyageur silver dollars. However, only eleven of
TransformationTime Limit: 15000/8000 MS (Java/Others) Memory Limit: 65535/65536 K (Java/Others)Total Submission(s): 1378 Accepted Submission(s): 303Problem DescriptionYuanfang is puzzled with the question below: There are n integers, a1, a2, …,
HotelTime Limit: 3000MS Memory Limit: 65536KTotal Submissions: 9550 Accepted: 4089DescriptionThe cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superior. Bessie, ever
Maximum Random WalkTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 224 Accepted Submission(s): 124Problem DescriptionConsider the classic random walk: at each step, you have a 1/2 chance of
Running RabbitsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 614 Accepted Submission(s): 438Problem DescriptionRabbit Tom and rabbit Jerry are running in a field. The field is an N×N grid.
Image RecognitionTime Limit: 6000/3000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 899 Accepted Submission(s): 336Problem DescriptionNow there is an image recognition problem for you. Now you are given an
Card CollectorTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1810 Accepted Submission(s): 836Special JudgeProblem DescriptionIn your childhood, do you crazy for collecting the beautiful
QueryTime Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2114 Accepted Submission(s): 735Problem DescriptionYou are given two strings s1[0..l1], s2[0..l2] and Q - number of queries.Your task
Multi-bit TrieTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 243 Accepted Submission(s): 84Problem Description IP lookup is one of the key functions of routers for packets forwarding and
Travel in timeTime Limit: 8000/4000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1009 Accepted Submission(s): 205Problem Description Bob gets tired of playing games, leaves Alice, and travels to Changsha
lockerTime Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 890 Accepted Submission(s): 380Problem DescriptionA password locker with N digits, each digit can be rotated to 0-9 circularly.You can