math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	7673	P476B Dreamoon and WiFi bitmasks brute force combinatorics dp math probabilities *1300	0 / 0	4
	7672	P476C Dreamoon and Sums math *1600	0 / 0	5
	7671	P476D Dreamoon and Sets constructive algorithms greedy math *1900	0 / 0	6
	7666	P478B Random Teams combinatorics constructive algorithms greedy math *1300	0 / 0	4
	7662	P479A Expression brute force math *1000	0 / 0	3
	7650	P483A Counterexample brute force implementation math number theory *1100	0 / 0	3
	7649	P483B Friends and Presents binary search math *1800	0 / 0	6
	7647	P484B Maximum Value binary search math sortings two pointers *2100	0 / 0	7
	7646	P484C Strange Sorting implementation math *2600	0 / 0	10
	7643	P485A Factory implementation math matrices *1400	0 / 0	4
	7641	P486A Calculating Function implementation math *800	0 / 0	3
	7638	P486D Valid Sets dfs and similar dp math trees *2100	0 / 0	7
	7637	P486E LIS of Sequence data structures dp greedy hashing math *2200	0 / 0	8
	7634	P487C Prefix Product Sequence constructive algorithms math number theory *2300	0 / 0	8
	7630	P488B Candy Boxes brute force constructive algorithms math *1900	0 / 0	6
	7621	P490C Hacking Cypher brute force math number theory strings *1700	0 / 0	5
	7620	P490D Chocolate brute force dfs and similar math meet-in-the-middle number theory *1900	0 / 0	6
	7616	P491B New York Hotel greedy math *2100	0 / 0	7
	7613	P492B Vanya and Lanterns binary search implementation math sortings *1200	0 / 0	4
	7611	P492D Vanya and Computer Game binary search implementation math sortings *1800	0 / 0	6
	7610	P492E Vanya and Field math *2000	0 / 0	7
	7606	P493D Vasya and Chess constructive algorithms games math *1700	0 / 0	5
	7605	P493E Vasya and Polynomial math *2800	0 / 0	10
	7598	P495B Modular Equations math number theory *1600	0 / 0	5
	7597	P496A Minimum Difficulty brute force implementation math *900	0 / 0	3
	7582	P500B New Year Permutation dfs and similar dsu graphs greedy math sortings *1600	0 / 0	5
	7581	P500C New Year Book Reading constructive algorithms greedy implementation math *1600	0 / 0	5
	7561	P507B Amr and Pins geometry math *1400	0 / 0	4
	7560	P507C Guess Your Way Out! implementation math trees *1700	0 / 0	5
	7556	P508B Anton and currency you all know greedy math strings *1300	0 / 0	4
	7549	P509D Restoring Numbers constructive algorithms math *2200	0 / 0	8
	7548	P509E Pretty Song math strings *2000	0 / 0	7
	7543	P510D Fox And Jumping bitmasks brute force dp math *1900	0 / 0	6
	7539	P513A Game constructive algorithms math *800	0 / 0	3
	7537	P513B2 Permutations bitmasks divide and conquer math *1800	0 / 0	6
	7518	P514B Han Solo and Lazer Gun brute force data structures geometry implementation math *1400	0 / 0	4
	7510	P515A Drazil and Date math *1000	0 / 0	3
	7506	P515C Drazil and Factorial greedy math sortings *1400	0 / 0	4
	7499	P516E Drazil and His Happy Friends math number theory *3100	0 / 0	10
	7491	P518D Ilya and Escalator combinatorics dp math probabilities *1700	0 / 0	5
	7489	P518E Arthur and Questions greedy implementation math ternary search *2200	0 / 0	8
	7484	P519C A and B and Team Training greedy implementation math number theory *1300	0 / 0	4
	7480	P520B Two Buttons dfs and similar graphs greedy implementation math shortest paths *1400	1 / 1	4
	7479	P520C DNA Alignment math strings *1500	0 / 0	5
	7477	P520E Pluses everywhere combinatorics dp math number theory *2200	0 / 0	8
	7461	P525B Pasha and String constructive algorithms greedy math strings *1400	0 / 0	4
	7460	P525C Ilya and Sticks greedy math sortings *1600	0 / 0	5
	7458	P525E Anya and Cubes binary search bitmasks brute force dp math meet-in-the-middle *2100	0 / 0	7
	7455	P526C Om Nom and Candies brute force greedy math *2000	0 / 0	7
	7450	P527A Playing with Paper implementation math *1100	0 / 0	3
	7419	P533C Board Game games greedy implementation math *1700	0 / 0	5
	7415	P534A Exam constructive algorithms implementation math *1100	0 / 0	3
	7414	P534B Covered Path dp greedy math *1400	0 / 0	4
	7413	P534C Polycarpus' Dice math *1600	0 / 0	5
	7407	P535C Tavas and Karafs binary search greedy math *1900	0 / 0	6
	7405	P535E Tavas and Pashmaks geometry math *2600	0 / 0	10
	7400	P538C Tourist's Notes binary search brute force greedy implementation math *1600	0 / 0	5
	7398	P538E Demiurges Play Again dfs and similar dp math trees *2200	0 / 0	8
	7397	P538F A Heap of Heaps brute force data structures math sortings *2200	0 / 0	8
	7396	P538G Berserk Robot constructive algorithms math sortings *3100	0 / 0	10
	7387	P542C Idempotent functions constructive algorithms graphs math *2000	0 / 0	7
	7386	P542D Superhero's Job dfs and similar dp hashing math number theory *2600	0 / 0	10
	7371	P546A Soldier and Bananas brute force implementation math *800	0 / 0	3
	7368	P546D Soldier and Number Game constructive algorithms dp math number theory *1700	0 / 0	5
	7367	P546E Soldier and Traveling flows graphs math *2100	0 / 0	7
	7366	P547A Mike and Frog brute force greedy implementation math *2200	0 / 0	8
	7364	P547C Mike and Foam bitmasks combinatorics dp math number theory *2300	0 / 0	8
	7355	P549E Sasha Circle geometry math *2700	0 / 0	10
	7352	P549H Degenerate Matrix binary search math *2100	0 / 0	7
	7349	P550C Divisibility by Eight brute force dp math *1500	0 / 0	5
	7347	P550E Brackets in Implications constructive algorithms greedy implementation math *2200	0 / 0	8
	7343	P551D GukiZ and Binary Operations combinatorics implementation math matrices number theory *2100	0 / 0	7
	7341	P552A Vanya and Table implementation math *1000	0 / 0	3
	7340	P552B Vanya and Books implementation math *1200	0 / 0	4
	7339	P552C Vanya and Scales brute force dp greedy math meet-in-the-middle number theory *1900	0 / 0	6
	7338	P552D Vanya and Triangles brute force combinatorics data structures geometry math sortings *1900	0 / 0	6
	7336	P553A Kyoya and Colored Balls combinatorics dp math *1500	0 / 0	5
	7335	P553B Kyoya and Permutation binary search combinatorics constructive algorithms greedy implementation math *1900	0 / 0	6
	7332	P553E Kyoya and Train dp fft graphs math probabilities *3200	0 / 0	10
	7331	P554A Kyoya and Photobooks brute force math strings *900	0 / 0	3
	7326	P555D Case of a Top Secret binary search implementation math *2500	0 / 0	9
	7322	P557A Ilya and Diplomas greedy implementation math *1100	0 / 0	3
	7321	P557B Pasha and Tea constructive algorithms implementation math sortings *1500	0 / 0	5
	7320	P557C Arthur and Table brute force data structures dp greedy math sortings *1900	0 / 0	6
	7319	P557D Vitaly and Cycle combinatorics dfs and similar graphs math *2000	0 / 0	7
	7315	P558C Amr and Chemistry brute force graphs greedy math shortest paths *1900	0 / 0	6
	7312	P559A Gerald's Hexagon brute force geometry math *1600	0 / 0	5
	7310	P559C Gerald and Giant Chess combinatorics dp math number theory *2200	0 / 0	8
	7300	P566F Clique in the Divisibility Graph dp math number theory *1500	0 / 0	5
	7292	P568A Primes or Palindromes? brute force implementation math number theory *1600	0 / 0	5
	7291	P568B Symmetric and Transitive combinatorics dp math *1900	0 / 0	6
	7289	P568D Sign Posts brute force geometry math *2800	0 / 0	10
	7287	P569A Music implementation math *1500	0 / 0	5
	7286	P569B Inventory greedy math *1200	0 / 0	4
	7284	P570B Simple Game constructive algorithms games greedy implementation math *1300	0 / 1	4
	7280	P571A Lengthening Sticks combinatorics implementation math *2100	0 / 0	7
	7276	P571E Geometric Progressions math *3200	0 / 0	10
	7273	P573A Bear and Poker implementation math number theory *1300	0 / 0	4
	7272	P573B Bear and Blocks binary search data structures dp math *1600	0 / 0	5
	7266	P575A Fibonotci data structures math matrices *2700	0 / 0	10

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