math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	9765	P1A Theatre Square math *1000	12 / 73	3
	9764	P1B Spreadsheets implementation math *1600	1 / 12	5
	9763	P1C Ancient Berland Circus geometry math *2100	0 / 1	7
	9761	P2B The least round way dp math *2000	0 / 0	7
	9755	P4A Watermelon brute force math *800	1 / 3	3
	9748	P5D Follow Traffic Rules implementation math *2100	0 / 0	7
	9739	P7C Line math number theory *1800	0 / 0	6
	9731	P9A Die Roll math probabilities *800	1 / 3	3
	9729	P9C Hexadecimal's Numbers brute force implementation math *1200	1 / 10	4
	9721	P11A Increasing Sequence constructive algorithms implementation math *900	0 / 4	3
	9720	P11B Jumping Jack math *1600	0 / 0	5
	9711	P13A Numbers implementation math *1000	0 / 0	3
	9704	P14C Four Segments brute force constructive algorithms geometry implementation math *1700	0 / 0	5
	9700	P15B Laser math *1800	0 / 0	6
	9691	P17A Noldbach problem brute force math number theory *1000	0 / 0	3
	9685	P18B Platforms brute force math *1700	0 / 0	5
	9675	P20B Equation math *2000	0 / 0	7
	9672	P21B Intersection implementation math *2000	0 / 0	7
	9663	P23B Party constructive algorithms graphs math *1600	0 / 0	5
	9661	P23D Tetragon geometry math *2600	0 / 0	10
	9657	P24C Sequence of points geometry implementation math *1800	0 / 0	6
	9656	P24D Broken robot dp math probabilities *2400	0 / 0	9
	9646	P26D Tickets combinatorics math probabilities *2400	0 / 0	9
	9635	P28E DravDe saves the world geometry math *2800	0 / 0	10
	9629	P30A Accounting brute force math *1400	0 / 0	4
	9617	P32C Flea math *1700	0 / 0	5
	9605	P34E Collisions brute force implementation math *2000	0 / 0	7
	9591	P37D Lesson Timetable combinatorics dp math *2300	0 / 0	8
	9588	P38B Chess brute force implementation math *1200	0 / 0	4
	9578	P39D Cubical Planet math *1100	0 / 0	3
	9570	P40A Find Color constructive algorithms geometry implementation math *1300	0 / 0	4
	9569	P40B Repaintings math *1600	0 / 0	5
	9568	P40C Berland Square implementation math *2300	0 / 0	8
	9567	P40D Interesting Sequence math *2600	0 / 0	10
	9557	P42D Strange town constructive algorithms math *2300	0 / 0	8
	9547	P44D Hyperdrive math *1800	0 / 0	6
	9523	P47A Triangular numbers brute force math *800	0 / 0	3
	9516	P48C The Race math *1800	0 / 0	6
	9509	P49B Sum math *1500	0 / 0	5
	9508	P49C Disposition constructive algorithms math *1700	0 / 0	5
	9505	P50A Domino piling greedy math *800	0 / 0	3
	9501	P50E Square Equation Roots math *2300	0 / 0	8
	9484	P54C First Digit Law dp math probabilities *2000	0 / 0	7
	9481	P55A Flea travel implementation math *1200	0 / 0	4
	9469	P57C Array combinatorics math *1900	0 / 0	6
	9468	P57D Journey dp math *2500	0 / 0	9
	9467	P57E Chess math shortest paths *3000	0 / 0	10
	9453	P60D Savior brute force dsu math *2500	0 / 0	9
	9452	P60E Mushroom Gnomes math matrices *2600	0 / 0	10
	9449	P61C Capture Valerian math *2000	0 / 0	7
	9446	P62A A Student's Dream greedy math *1300	0 / 0	4
	9434	P64C Table special problem greedy implementation math 1600	0 / 0	5
	9432	P64E Prime Segment special problem brute force math number theory 1800	0 / 0	6
	9427	P65A Harry Potter and Three Spells implementation math *1800	0 / 0	6
	9419	P66D Petya and His Friends constructive algorithms math number theory *1700	0 / 0	5
	9409	P68D Half-decay tree data structures divide and conquer dp math probabilities *2500	0 / 0	9
	9407	P69A Young Physicist implementation math *1000	0 / 0	3
	9402	P70A Cookies math *1300	0 / 0	4
	9396	P71B Progress Bar implementation math *1300	0 / 0	4
	9395	P71C Round Table Knights dp math number theory *1600	0 / 0	5
	9392	P72A Goshtasp, Vishtasp and Eidi special problem greedy math 1800	0 / 0	6
	9390	P72C Extraordinarily Nice Numbers special problem math 1200	0 / 0	4
	9387	P72F Oil special problem greedy math 1900	0 / 0	6
	9383	P73A The Elder Trolls IV: Oblivon greedy math *1600	0 / 0	5
	9379	P73E Morrowindows math number theory *2400	0 / 0	9
	9369	P75D Big Maximum Sum data structures dp greedy implementation math trees *2000	0 / 0	7
	9365	P76C Mutation bitmasks dp math *2700	0 / 0	10
	9364	P76D Plus and xor dp greedy math *1700	0 / 0	5
	9363	P76E Points implementation math *1700	0 / 0	5
	9360	P77B Falling Anvils math probabilities *1800	0 / 0	6
	9353	P78D Archer's Shot binary search geometry math two pointers *2300	0 / 0	8
	9347	P79E Security System math *2900	0 / 0	10
	9345	P80B Depression geometry math *1200	0 / 0	4
	9342	P81C Average Score greedy math sortings *1700	0 / 0	5
	9339	P82A Double Cola implementation math *1100	0 / 0	3
	9334	P83A Magical Array math *1300	0 / 0	4
	9333	P83B Doctor binary search math sortings *1800	0 / 0	6
	9331	P83D Numbers dp math number theory *2400	0 / 0	9
	9329	P84A Toy Army math number theory *900	0 / 0	3
	9322	P86A Reflection math *1600	0 / 0	5
	9321	P86B Tetris revisited constructive algorithms graph matchings greedy math *2200	0 / 0	8
	9319	P86D Powerful array data structures implementation math two pointers *2200	0 / 0	8
	9318	P86E Long sequence brute force math matrices *2700	0 / 0	10
	9317	P87A Trains implementation math *1500	0 / 0	5
	9315	P87C Interesting Game dp games math *2000	0 / 0	7
	9305	P90A Cableway greedy math *1000	0 / 0	3
	9298	P92A Chips implementation math *800	0 / 0	3
	9293	P93D Flags dp math matrices *2500	0 / 0	9
	9292	P93E Lostborn dp math number theory *2600	0 / 0	10
	9290	P94B Friends graphs implementation math *1300	0 / 0	4
	9286	P95D Horse Races dp math *2500	0 / 0	9
	9280	P97C Winning Strategy binary search graphs math shortest paths *2400	0 / 0	9
	9273	P98E Help Shrek and Donkey dp games math probabilities *2700	0 / 0	10
	9266	P100E Lamps in a Line special problem math 1600	0 / 0	5
	9262	P100I Rotation special problem geometry math 1500	0 / 0	5
	9261	P100J Interval Coloring special problem greedy math 2400	0 / 0	9
	9258	P101C Vectors implementation math *2000	0 / 0	7
	9253	P103A Testing Pants for Sadness greedy implementation math *1100	0 / 0	3
	9236	P107B Basketball Team combinatorics dp math probabilities *1600	0 / 0	5
	9231	P108B Datatypes math sortings *1400	0 / 0	4

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