math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	3085	P1385A Three Pairwise Maximums math *800	0 / 0	3
	3077	P1386B Mixture special problem data structures geometry math sortings 2900	0 / 0	10
	3075	P1387A Graph special problem binary search dfs and similar dp math ternary search 2100	0 / 0	7
	3071	P1388A Captain Flint and Crew Recruitment brute force greedy math number theory *800	0 / 0	3
	3070	P1388B Captain Flint and a Long Voyage greedy math *1000	0 / 0	3
	3069	P1388C Uncle Bogdan and Country Happiness dfs and similar greedy math trees *1800	0 / 0	6
	3066	P1389A LCM Problem constructive algorithms greedy math number theory *800	0 / 0	3
	3063	P1389D Segment Intersections brute force greedy implementation math *2100	0 / 0	7
	3062	P1389E Calendar Ambiguity math number theory *2200	0 / 0	8
	3059	P1391A Suborrays constructive algorithms math *800	0 / 0	3
	3057	P1391C Cyclic Permutations combinatorics dp graphs math *1500	0 / 0	5
	3054	P1392A Omkar and Password greedy math *800	0 / 0	3
	3053	P1392B Omkar and Infinity Clock implementation math *800	0 / 0	3
	3050	P1392E Omkar and Duck bitmasks constructive algorithms interactive math *2100	0 / 0	7
	3049	P1392F Omkar and Landslide binary search constructive algorithms data structures greedy math *2400	0 / 0	9
	3048	P1392G Omkar and Pies bitmasks dfs and similar dp math shortest paths *2900	0 / 0	10
	3047	P1392H ZS Shuffles Cards combinatorics dp math probabilities *3000	0 / 0	10
	3046	P1392I Kevin and Grid fft graphs math *3300	0 / 0	10
	3045	P1393A Rainbow Dash, Fluttershy and Chess Coloring greedy math *800	0 / 0	3
	3043	P1393C Pinkie Pie Eats Patty-cakes constructive algorithms greedy math sortings *1700	0 / 0	5
	3034	P1395A Boboniu Likes to Color Balls brute force math *1000	0 / 0	3
	3025	P1397B Power Sequence brute force math number theory sortings *1500	0 / 0	5
	3024	P1398A Bad Triangle geometry math *800	0 / 0	3
	3022	P1398C Good Subarrays data structures dp math *1600	0 / 0	5
	3020	P1398E Two Types of Spells binary search data structures greedy implementation math sortings *2200	0 / 0	8
	3018	P1398G Running Competition bitmasks fft math number theory *2600	0 / 0	10
	3009	P1400B RPG Protagonist brute force greedy math *1700	0 / 0	5
	3007	P1400D Zigzags brute force combinatorics data structures math two pointers *1900	0 / 0	6
	3004	P1400G Mercenaries bitmasks brute force combinatorics dp dsu math two pointers *2600	0 / 0	10
	3003	P1401A Distance and Axis constructive algorithms math *900	0 / 0	3
	3002	P1401B Ternary Sequence constructive algorithms greedy math *1100	0 / 0	3
	3001	P1401C Mere Array constructive algorithms math number theory sortings *1300	0 / 0	4
	3000	P1401D Maximum Distributed Tree dfs and similar dp greedy implementation math number theory sortings trees *1800	0 / 0	6
	2997	P1402A Fancy Fence special problem data structures dsu implementation math sortings 1800	0 / 0	6
	2992	P1403C Chess Rush special problem combinatorics dp implementation math 3200	0 / 0	10
	2988	P1404D Game of Pairs constructive algorithms dfs and similar interactive math number theory *2800	0 / 0	10
	2984	P1406A Subset Mex greedy implementation math *900	0 / 0	3
	2981	P1406D Three Sequences constructive algorithms data structures greedy math *2200	0 / 0	8
	2980	P1406E Deleting Numbers interactive math number theory *2600	0 / 0	10
	2979	P1407A Ahahahahahahahaha constructive algorithms math *1100	0 / 0	3
	2978	P1407B Big Vova brute force greedy math number theory *1300	0 / 0	4
	2977	P1407C Chocolate Bunny constructive algorithms interactive math two pointers *1600	0 / 0	5
	2973	P1408B Arrays Sum constructive algorithms greedy math *1400	0 / 0	4
	2972	P1408C Discrete Acceleration binary search dp implementation math two pointers *1500	0 / 0	5
	2966	P1408I Bitwise Magic dp math *3200	0 / 0	10
	2965	P1409A Yet Another Two Integers Problem greedy math *800	0 / 0	3
	2964	P1409B Minimum Product brute force greedy math *1100	0 / 0	3
	2963	P1409C Yet Another Array Restoration brute force math number theory *1200	0 / 0	4
	2962	P1409D Decrease the Sum of Digits greedy math *1500	0 / 0	5
	2955	P1411E Poman Numbers bitmasks greedy math strings *2300	0 / 0	8
	2954	P1411F The Thorny Path greedy math *3000	0 / 0	10
	2953	P1411G No Game No Life bitmasks games math matrices *2700	0 / 0	10
	2952	P1413A Finding Sasuke constructive algorithms math *800	0 / 0	3
	2948	P1413E Solo mid Oracle greedy math ternary search *2100	0 / 0	7
	2946	P1415A Prison Break brute force math *800	0 / 0	3
	2942	P1415E New Game Plus! constructive algorithms greedy math *2200	0 / 0	8
	2939	P1416B Make Them Equal constructive algorithms greedy math *2000	0 / 0	7
	2938	P1416C XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees *2000	0 / 0	7
	2934	P1417A Copy-paste greedy math *800	0 / 0	3
	2933	P1417B Two Arrays greedy math sortings *1100	0 / 0	3
	2932	P1418A Buying Torches math *1000	0 / 0	3
	2927	P1418F Equal Product data structures math number theory two pointers *3000	0 / 0	10
	2924	P1419B Stairs brute force constructive algorithms greedy implementation math *1200	0 / 0	4
	2923	P1419C Killjoy greedy implementation math *1500	0 / 0	5
	2920	P1419E Decryption constructive algorithms implementation math number theory *2100	0 / 0	7
	2918	P1420A Cubes Sorting math sortings *900	0 / 0	3
	2917	P1420B Rock and Lever bitmasks math *1200	0 / 0	4
	2912	P1421A XORwice bitmasks greedy math *800	0 / 0	3
	2909	P1421D Hexagons brute force constructive algorithms greedy implementation math shortest paths *1900	0 / 0	6
	2907	P1422A Fence geometry math *800	0 / 0	3
	2906	P1422B Nice Matrix greedy implementation math *1300	0 / 0	4
	2905	P1422C Bargain combinatorics dp math *1700	0 / 0	5
	2902	P1422F Boring Queries data structures math number theory *2700	0 / 0	10
	2896	P1423F Coins math *2700	0 / 0	10
	2892	P1423J Bubble Cup hypothesis bitmasks constructive algorithms dp math *2400	0 / 0	9
	2891	P1423K Lonely Numbers binary search math number theory two pointers *1600	0 / 0	5
	2883	P1425C Captain of Knights math *3100	0 / 0	10
	2882	P1425D Danger of Mad Snakes combinatorics dp math *2300	0 / 0	8
	2877	P1426A Floor Number implementation math *800	0 / 0	3
	2875	P1426C Increase and Copy binary search constructive algorithms math *1100	0 / 0	3
	2873	P1426E Rock, Paper, Scissors brute force constructive algorithms flows greedy math *1800	0 / 0	6
	2871	P1427A Avoiding Zero math sortings *900	0 / 0	3
	2867	P1427E Xum bitmasks constructive algorithms math matrices number theory *2500	0 / 0	9
	2863	P1428A Box is Pull math *800	0 / 0	3
	2859	P1428E Carrots for Rabbits binary search data structures greedy math sortings *2200	0 / 0	8
	2854	P1430A Number of Apartments brute force constructive algorithms math *900	0 / 0	3
	2852	P1430C Numbers on Whiteboard constructive algorithms data structures greedy implementation math *1000	0 / 0	3
	2848	P1430G Yet Another DAG Problem bitmasks dfs and similar dp flows graphs math *2600	0 / 0	10
	2837	P1433A Boring Apartments implementation math *800	0 / 0	3
	2833	P1433E Two Round Dances combinatorics math *1300	0 / 0	4
	2829	P1436A Reorder math *800	0 / 0	3
	2828	P1436B Prime Square constructive algorithms math *900	1 / 1	3
	2824	P1436F Sum Over Subsets combinatorics math number theory *2800	0 / 0	10
	2823	P1437A Marketing Scheme brute force constructive algorithms greedy math *800	0 / 0	3
	2821	P1437C Chef Monocarp dp flows graph matchings greedy math sortings *1800	0 / 0	6
	2818	P1437F Emotional Fishermen combinatorics dp math two pointers *2600	0 / 0	10
	2813	P1438D Powerful Ksenia bitmasks constructive algorithms math *2200	0 / 0	8
	2804	P1440A Buy the String implementation math *800	0 / 0	3
	2803	P1440B Sum of Medians greedy math *900	0 / 0	3
	2796	P1443A Kids Seating constructive algorithms math *800	0 / 0	3

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