Problemset - Codeforces

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Educational Codeforces Round 173 (Rated for Div. 2)
14:42:02
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Problems

#	Name
533E	Correcting Mistakes constructive algorithms, dp, greedy, hashing, strings, two pointers	1800	x2281
533D	Landmarks data structures, dp	3000	x235
533C	Board Game games, greedy, implementation, math	1700	x2211
533B	Work Group dfs and similar, dp, graphs, strings, trees	2000	x2452
533A	Berland Miners binary search, data structures, dfs and similar, greedy, trees	3000	x399
530I	Different variables *special problem	2500	x47
530H	Points in triangle *special problem, geometry	2100	x123
530G	Levenshtein distance *special problem	2100	x159
530F	Jumping frogs *special problem	2100	x107
530E	Sum and product *special problem	1700	x308
530D	Set subtraction *special problem	1600	x452
530C	Diophantine equation *special problem	1500	x556
530B	String inside out *special problem	1600	x542
530A	Quadratic equation *special problem	1500	x676
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x878
528E	Triangles 3000 geometry, sortings	3100	x220
528D	Fuzzy Search bitmasks, brute force, fft	2500	x2260
527E	Data Center Drama dfs and similar, graphs	2600	x2012
527D	Clique Problem data structures, dp, greedy, implementation, sortings	1800	x4816
527C	Glass Carving binary search, data structures, implementation	1500	x6969
527B	Error Correct System greedy	1500	x3894
527A	Playing with Paper implementation, math	1100	x14532
526G	Spiders Evil Plan greedy, trees	3300	x758
526F	Pudding Monsters data structures, divide and conquer	3000	x2626
526E	Transmitting Levels dp, implementation	2400	x1094
526D	Om Nom and Necklace hashing, string suffix structures, strings	2200	x2187
526C	Om Nom and Candies brute force, greedy, math	2000	x2537
526B	Om Nom and Dark Park dfs and similar, greedy, implementation	1400	x4515
526A	King of Thieves brute force, implementation	1300	x4797
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x3370
525D	Arthur and Walls constructive algorithms, data structures, graphs, greedy, shortest paths	2400	x1802
525C	Ilya and Sticks greedy, math, sortings	1600	x5833
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9476
525A	Vitaliy and Pie greedy, hashing, strings	1100	x14946
524F	And Yet Another Bracket Sequence data structures, greedy, hashing, string suffix structures, strings	2700	x538
524E	Rooks and Rectangles data structures, sortings	2400	x1217
524D	Social Network greedy, two pointers	2100	x956
524C	The Art of Dealing with ATM binary search, sortings	1900	x2060
524B	Фото на память - 2 (round version) dp, greedy	1700	x1468
524A	Возможно, вы знаете этих людей? implementation	1600	x1416
523D	Statistics of Recompressing Videos *special problem, data structures, implementation	1600	x2356
523C	Name Quest *special problem, greedy	1400	x2508
523B	Mean Requests *special problem, implementation	1500	x952
523A	Rotate, Flip and Zoom *special problem, implementation	1200	x2643
522D	Closest Equals *special problem, data structures	2000	x3270
522C	Chicken or Fish? greedy	2100	x723
522B	Photo to Remember *special problem, data structures, dp, implementation	1100	x9004
522A	Reposts *special problem, dfs and similar, dp, graphs, trees	1200	x16658
521E	Cycling City dfs and similar, graphs	3100	x1075
521D	Shop greedy	2800	x1625
520E	Pluses everywhere combinatorics, dp, math, number theory	2200	x1890
520D	Cubes games, greedy, implementation	2100	x1569
520C	DNA Alignment math, strings	1500	x4179
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x52145
520A	Pangram implementation, strings	800	x101138
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x7044
519D	A and B and Interesting Substrings data structures, dp, two pointers	1800	x6413
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19855
519B	A and B and Compilation Errors data structures, implementation, sortings	1100	x39993
519A	A and B and Chess implementation	900	x19123
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2300	x383
518E	Arthur and Questions greedy, implementation, math, ternary search	2200	x1004
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x7100
518C	Anya and Smartphone constructive algorithms, data structures, implementation	1600	x6059
518B	Tanya and Postcard greedy, implementation, strings	1400	x8009
518A	Vitaly and Strings constructive algorithms, strings	1600	x9253
516E	Drazil and His Happy Friends math, number theory	3100	x507
516D	Drazil and Morning Exercise dfs and similar, dp, dsu, trees, two pointers	2800	x1331
515E	Drazil and Park data structures	2300	x2163
515D	Drazil and Tiles constructive algorithms, greedy	2000	x2871
515C	Drazil and Factorial greedy, math, sortings	1400	x26289
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7483
515A	Drazil and Date math	1000	x20472
514E	Darth Vader and Tree dp, matrices	2200	x1456
514D	R2D2 and Droid Army binary search, data structures, two pointers	2000	x4528
514C	Watto and Mechanism binary search, data structures, hashing, string suffix structures, strings	2000	x7011
514B	Han Solo and Lazer Gun brute force, data structures, geometry, implementation, math	1400	x21016
514A	Chewbaсca and Number greedy, implementation	1200	x54482
513G3	Inversions problem dp	3100	x266
513G2	Inversions problem dp, probabilities	2400	x663
513G1	Inversions problem brute force, dfs and similar, dp, meet-in-the-middle	1800	x1795
513F2	Scaygerboss flows	2800	x361
513F1	Scaygerboss flows	2700	x327
513E2	Subarray Cuts dp	2700	x600
513E1	Subarray Cuts dp	2600	x499
513D2	Constrained Tree constructive algorithms, data structures	2600	x385
513D1	Constrained Tree dfs and similar	2400	x621
513C	Second price auction bitmasks, probabilities	2000	x1564
513B2	Permutations bitmasks, divide and conquer, math	1800	x2803
513B1	Permutations brute force	1400	x3711
513A	Game constructive algorithms, math	800	x20640
512E	Fox And Polygon constructive algorithms, divide and conquer	2900	x522
512D	Fox And Travelling dp, trees	2900	x986
510E	Fox And Dinner flows	2300	x2239
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5717
510C	Fox And Names dfs and similar, graphs, sortings	1600	x16720
510B	Fox And Two Dots dfs and similar	1500	x14181
510A	Fox And Snake implementation	800	x86310
509F	Progress Monitoring dp, trees	2300	x1086
509E	Pretty Song math, strings	2000	x1805