implementation - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	8495	P271C Secret constructive algorithms implementation *1500	0 / 0	5
	8492	P272A Dima and Friends implementation math *1000	0 / 0	3
	8491	P272B Dima and Sequence implementation math *1400	0 / 0	4
	8490	P272C Dima and Staircase data structures implementation *1500	0 / 0	5
	8481	P274E Mirror Room data structures implementation *3000	0 / 0	10
	8480	P275A Lights Out implementation *900	0 / 0	3
	8479	P275B Convex Shape constructive algorithms implementation *1700	0 / 0	5
	8478	P276A Lunch Rush implementation *900	0 / 0	3
	8476	P276C Little Girl and Maximum Sum data structures greedy implementation sortings *1500	0 / 0	5
	8475	P276D Little Girl and Maximum XOR bitmasks dp greedy implementation math *1700	0 / 0	5
	8471	P277C Game games implementation *2400	0 / 0	9
	8468	P278A Circle Line implementation *800	0 / 0	3
	8466	P279A Point on Spiral brute force geometry implementation *1400	0 / 0	4
	8465	P279B Books binary search brute force implementation two pointers *1400	0 / 0	4
	8464	P279C Ladder dp implementation two pointers *1700	0 / 0	5
	8460	P280B Maximum Xor Secondary data structures implementation two pointers *1800	0 / 0	6
	8459	P280C Game on Tree implementation math probabilities trees *2200	0 / 0	8
	8458	P280D k-Maximum Subsequence Sum data structures flows graphs implementation *2800	0 / 0	10
	8457	P280E Sequence Transformation brute force data structures dp implementation math *3000	0 / 0	10
	8456	P281A Word Capitalization implementation strings *800	0 / 0	3
	8455	P281B Nearest Fraction brute force implementation two pointers *1700	0 / 0	5
	8454	P282A Bit++ implementation *800	0 / 0	3
	8452	P282C XOR and OR constructive algorithms implementation math *1500	0 / 0	5
	8449	P283A Cows and Sequence constructive algorithms data structures implementation *1600	0 / 0	5
	8444	P284A Cows and Primitive Roots implementation math number theory *1400	0 / 0	4
	8443	P284B Cows and Poker Game brute force implementation *1000	0 / 0	3
	8442	P285A Slightly Decreasing Permutations greedy implementation *1100	0 / 0	3
	8441	P285B Find Marble implementation *1200	0 / 0	4
	8440	P285C Building Permutation greedy implementation sortings *1200	0 / 0	4
	8439	P285D Permutation Sum bitmasks combinatorics dp implementation meet-in-the-middle *1900	0 / 0	6
	8436	P286B Shifting implementation *2200	0 / 0	8
	8435	P286C Main Sequence greedy implementation *2100	0 / 0	7
	8432	P287A IQ Test brute force implementation *1100	0 / 0	3
	8428	P288C Polo the Penguin and XOR operation implementation math *1700	0 / 0	5
	8426	P288E Polo the Penguin and Lucky Numbers dp implementation math *2800	0 / 0	10
	8425	P289A Polo the Penguin and Segments brute force implementation *1100	0 / 0	3
	8424	P289B Polo the Penguin and Matrix brute force dp implementation sortings ternary search *1400	0 / 0	4
	8423	P290A Mysterious strings special problem implementation 1400	0 / 0	4
	8422	P290B QR code special problem implementation 1500	0 / 0	5
	8421	P290C WTF? special problem graph matchings implementation trees 1700	0 / 0	5
	8420	P290D Orange special problem implementation 1400	0 / 0	4
	8417	P291A Spyke Talks special problem implementation sortings 800	0 / 0	3
	8416	P291B Command Line Arguments special problem implementation strings 1300	0 / 0	4
	8415	P291C Network Mask special problem bitmasks brute force implementation 1600	0 / 0	5
	8412	P292A SMSC implementation *1100	0 / 0	3
	8411	P292B Network Topology graphs implementation *1200	0 / 0	4
	8402	P294A Shaass and Oskols implementation math *800	0 / 0	3
	8399	P294D Shaass and Painter Robot brute force implementation number theory *2500	0 / 0	9
	8397	P295A Greg and Array data structures implementation *1400	0 / 0	4
	8385	P298A Snow Footprints greedy implementation *1300	0 / 0	4
	8384	P298B Sail brute force greedy implementation *1200	0 / 0	4
	8382	P299B Ksusha the Squirrel brute force implementation *900	0 / 0	3
	8381	P300A Array brute force constructive algorithms implementation *1100	0 / 0	3
	8371	P302A Eugeny and Array implementation *800	0 / 0	3
	8370	P302B Eugeny and Play List binary search implementation two pointers *1200	0 / 0	4
	8369	P303A Lucky Permutation Triple constructive algorithms implementation math *1300	0 / 0	4
	8368	P303B Rectangle Puzzle II implementation math *1700	0 / 0	5
	8363	P304B Calendar brute force implementation *1300	0 / 0	4
	8362	P305A Strange Addition brute force constructive algorithms implementation *1600	0 / 0	5
	8361	P305B Continued Fractions brute force implementation math *1700	0 / 0	5
	8360	P305C Ivan and Powers of Two greedy implementation *1600	0 / 0	5
	8357	P306A Candies implementation *800	0 / 0	3
	8348	P311A The Closest Pair constructive algorithms implementation *1300	0 / 0	4
	8343	P312A Whose sentence is it? implementation strings *1100	0 / 0	3
	8341	P313A Ilya and Bank Account implementation number theory *900	0 / 0	3
	8340	P313B Ilya and Queries dp implementation *1100	0 / 0	3
	8339	P313C Ilya and Matrix constructive algorithms greedy implementation sortings *1400	0 / 0	4
	8336	P314A Sereja and Contest implementation *1600	0 / 0	5
	8330	P315B Sereja and Array implementation *1200	0 / 0	4
	8317	P316F1 Suns and Rays dfs and similar implementation *2200	0 / 0	8
	8315	P316F3 Suns and Rays constructive algorithms dfs and similar implementation *2200	0 / 0	8
	8310	P317B Ants brute force implementation *2000	0 / 0	7
	8305	P318B Strings of Power implementation strings two pointers *1300	0 / 0	4
	8303	P319B Psychos in a Line data structures implementation *1900	0 / 0	6
	8297	P321A Ciel and Robot binary search implementation math *1700	0 / 0	5
	8287	P325A Square and Rectangles implementation *1500	0 / 0	5
	8282	P327A Flipping Game brute force dp implementation *1200	0 / 0	4
	8277	P328A IQ Test implementation *1800	0 / 0	6
	8270	P330A Cakeminator brute force implementation *800	0 / 0	3
	8268	P331A1 Oh Sweet Beaverette brute force implementation *1400	0 / 0	4
	8266	P331B1 Shave Beaver! implementation *1700	0 / 0	5
	8261	P331D1 Escaping on Beaveractor dfs and similar implementation *2400	0 / 0	9
	8259	P331D3 Escaping on Beaveractor data structures implementation trees *3000	0 / 0	10
	8258	P331E1 Deja Vu constructive algorithms graphs implementation *2900	0 / 0	10
	8256	P332A Down the Hatch! implementation *1300	0 / 0	4
	8255	P332B Maximum Absurdity data structures dp implementation *1500	0 / 0	5
	8252	P332E Binary Key dp greedy implementation *2400	0 / 0	9
	8248	P333D Characteristics of Rectangles binary search bitmasks brute force implementation sortings *2100	0 / 0	7
	8246	P334A Candy Bags implementation *1000	0 / 0	3
	8238	P336A Vasily the Bear and Triangle implementation math *1000	0 / 0	3
	8236	P336C Vasily the Bear and Sequence brute force greedy implementation number theory *1800	0 / 0	6
	8234	P336E Vasily the Bear and Painting Square bitmasks combinatorics dp implementation *2700	0 / 0	10
	8226	P339A Helpful Maths greedy implementation sortings strings *800	0 / 0	3
	8225	P339B Xenia and Ringroad implementation *1000	0 / 0	3
	8219	P340C Tourist Problem combinatorics implementation math *1600	0 / 0	5
	8214	P342A Xenia and Divisors greedy implementation *1200	0 / 0	4
	8213	P342B Xenia and Spies brute force greedy implementation *1500	0 / 0	5
	8208	P343B Alternating Current data structures greedy implementation *1600	0 / 0	5
	8204	P344A Magnets implementation *800	0 / 0	3
	8190	P347A Difference Row constructive algorithms implementation sortings *1300	0 / 0	4

Pick a problem randomly based on the current filter.