Problems from Principles of Algorithmic Problem Solving

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Arithmetic Functions0.00671447131791%1.7Easyen
Bit Game0.20224331958%8.4Harden
Chocolate Division0.003867561591%1.9Easyen
Cinema Crowds0.0049102493491%2.1Easyen
Cinema Crowds 20.00291087102394%1.8Easyen
Cinema Seating0.0219038634088%2.8Mediumen
Counting Days0.008519917588%3.1Mediumen
Cut in Line0.001061660157095%1.6Easyen
Digit Swap0.003124061192196%1.2Easyen
Divisor Counts0.068719315882%4.1Mediumen
Divisor Shuffle0.027514311580%4.3Mediumen
Dual Divisibility0.004619516484%3.7Mediumen
Eulerian Graphs0.0125620819393%2.4Easyen
Eulerian Graphs 20.0240514212890%3.1Mediumen
Evening Out 10.003340837291%2.2Easyen
Evening Out 20.0010419713066%6.3Harden
Factorial Power0.0024216213885%3.5Mediumen
Fire Exits0.011183251248%8.3Harden
Fuzzy Family Tree0.03457614675%4.2 - 5.4Mediumen
GCD0.00132255213094%1.4Easyen
GCD Sum0.0087794658%7.5Harden
GCD Sum 20.09287674466%6.9Harden
GCD and LCM0.001751229376%4.6Mediumen
Generalized Knights0.00218019632%8.5Harden
Grading0.00333541334995%1.4Easyen
Hailstone Sequences0.00481170110194%1.6Easyen
Hermits0.019870259084%2.8Mediumen
Inheritance0.008221219190%2.9Mediumen
Inverse Totient0.30938221150%7.9Harden
Knight Packing0.0066497627097%1.3Easyen
Logic Functions0.009699993093%1.6Easyen
Longest Prime Sum0.00693983088%2.3Easyen
Longest path in a DAG0.0147221818283%3.9Mediumen
Marathon0.00226513773%6.5Harden
Massive Card Game0.02102111798788%2.8Mediumen
Maximum Clique0.0031415510065%2.0 - 5.8Harden
Minimal Fibonacci Sums0.008255950089%2.1Easyensv
Multiplication Table0.007239831078%2.5 - 3.0Mediumen
Mårten's DFS0.035141298566%4.6 - 5.7Hardensv
N-sum0.0015111471068196%1.2Easyen
Odd A's, Even B's0.006421918283%4.2Mediumen
Odd Echo0.006126501174293%1.2Easyen
Popularity Contest0.017284879794%1.8Easyen
Positive Divisors0.009538431682%2.8Mediumen
Primality0.003438023662%2.3 - 5.1Mediumen
Prime Count0.024462588232%3.0 - 8.1Harden
Product Divisors0.093731138273%6.0Harden
Sailing Friends0.0119140036992%2.1Easyen
Shortest Composite Sum0.002824120183%3.6Mediumen
Subcommittees0.0086947176%3.9Mediumen
Triangle Area0.0015127051217296%1.2Easyen
Triangle Drama0.0010520318792%2.6Easyen
Trip Planning0.0312450542284%3.5Mediumen
Two-sum0.006152901460095%1.2Easyen
Varied Amusements0.006638031382%2.2 - 2.9Mediumen
Vector Functions0.0357565051679%3.2Mediumen