Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
321C	Ciel the Commander constructive algorithms, dfs and similar, divide and conquer, greedy, trees	2100	x6940
321B	Ciel and Duel dp, flows, greedy	1900	x2995
321A	Ciel and Robot binary search, implementation, math	1700	x3567
320B	Ping-Pong (Easy Version) dfs and similar, graphs	1500	x7129
320A	Magic Numbers brute force, greedy	900	x34458
319E	Ping-Pong data structures	3000	x635
319D	Have You Ever Heard About the Word? greedy, hashing, string suffix structures, strings	2800	x621
319C	Kalila and Dimna in the Logging Industry dp, geometry	2100	x4845
319B	Psychos in a Line data structures, implementation	1900	x4055
319A	Malek Dance Club combinatorics, math	1600	x2769
318B	Strings of Power implementation, strings, two pointers	1300	x7426
318A	Even Odds math	900	x108695
317E	Princess and Her Shadow constructive algorithms, shortest paths	3100	x153
317D	Game with Powers dp, games	2300	x987
317C	Balance constructive algorithms, dfs and similar, graphs, trees	2500	x491
317B	Ants brute force, implementation	2000	x1589
317A	Perfect Pair brute force	1600	x4557
316G3	Good Substrings string suffix structures	2400	x489
316G2	Good Substrings string suffix structures	2200	x467
316G1	Good Substrings hashing, strings	1700	x934
316F3	Suns and Rays constructive algorithms, dfs and similar, implementation	2200	x164
316F2	Suns and Rays	2300	x150
316F1	Suns and Rays dfs and similar, implementation	2200	x165
316E3	Summer Homework data structures, math	2300	x509
316E2	Summer Homework data structures, math	2300	x384
316E1	Summer Homework brute force, data structures	1500	x1454
316D3	PE Lesson dp, math	2400	x552
316D2	PE Lesson dp	2300	x436
316D1	PE Lesson brute force, dp	2300	x497
316C2	Tidying Up flows, graph matchings	2300	x620
316C1	Tidying Up flows	2200	x550
316B2	EKG dfs and similar, dp	1600	x1573
316B1	EKG brute force, dfs and similar	1500	x1364
316A2	Special Task math	1400	x2114
316A1	Special Task greedy	1100	x2610
315B	Sereja and Array implementation	1200	x6906
315A	Sereja and Bottles brute force	1400	x10841
314E	Sereja and Squares dp	2900	x366
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x517
314C	Sereja and Subsequences data structures, dp	2000	x1813
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1456
314A	Sereja and Contest implementation	1600	x2061
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x542
313D	Ilya and Roads dp	2100	x1443
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5553
313B	Ilya and Queries dp, implementation	1100	x42279
313A	Ilya and Bank Account implementation, number theory	900	x54504
312B	Archer math, probabilities	1300	x11233
312A	Whose sentence is it? implementation, strings	1100	x4919
311E	Biologist flows	2300	x1074
311D	Interval Cubing data structures, math	2600	x660
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x477
311B	Cats Transport data structures, dp	2400	x3295
311A	The Closest Pair constructive algorithms, implementation	1300	x4009
309E	Sheep binary search, greedy	2900	x220
309D	Tennis Rackets brute force, geometry	2700	x173
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1296
309B	Context Advertising dp, two pointers	2100	x563
309A	Morning run binary search, math, two pointers	2000	x461
306D	Polygon constructive algorithms, geometry	2300	x265
306C	White, Black and White Again combinatorics, number theory	2100	x464
306B	Optimizer data structures, greedy, sortings	2100	x439
306A	Candies implementation	800	x6641
305E	Playing with String games	2300	x608
305D	Olya and Graph combinatorics, math	2200	x456
305C	Ivan and Powers of Two greedy, implementation	1600	x2428
305B	Continued Fractions brute force, implementation, math	1700	x2045
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4674
304B	Calendar brute force, implementation	1300	x2948
304A	Pythagorean Theorem II brute force, math	1200	x10268
303E	Random Ranking dp, math, probabilities	3000	x315
303D	Rotatable Number math, number theory	2600	x291
303C	Minimum Modular brute force, graphs, math, number theory	2400	x865
303B	Rectangle Puzzle II implementation, math	1700	x1335
303A	Lucky Permutation Triple constructive algorithms, implementation, math	1300	x7767
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x7876
302A	Eugeny and Array implementation	800	x8979
301E	Yaroslav and Arrangements dp	2800	x363
301D	Yaroslav and Divisors data structures	2200	x2238
301C	Yaroslav and Algorithm constructive algorithms	2500	x461
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2366
301A	Yaroslav and Sequence constructive algorithms	1800	x3053
300E	Empire Strikes Back binary search, math, number theory	2300	x1028
300D	Painting Square dp, fft	2300	x741
300C	Beautiful Numbers brute force, combinatorics	1800	x9059
300B	Coach brute force, dfs and similar, graphs	1500	x6180
300A	Array brute force, constructive algorithms, implementation	1100	x22196
299B	Ksusha the Squirrel brute force, implementation	900	x5196
299A	Ksusha and Array brute force, number theory, sortings	1000	x7825
298B	Sail brute force, greedy, implementation	1200	x13737
298A	Snow Footprints greedy, implementation	1300	x10640
297E	Mystic Carvings data structures	3000	x354
297D	Color the Carpet constructive algorithms	2500	x499
297C	Splitting the Uniqueness constructive algorithms	2400	x933
297B	Fish Weight constructive algorithms, greedy	1600	x3457
297A	Parity Game constructive algorithms	1700	x3599
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2132
296A	Yaroslav and Permutations greedy, math	1100	x22353
295E	Yaroslav and Points data structures	2500	x656
295D	Greg and Caves combinatorics, dp	2400	x640