Problemset - Codeforces

Problems

#	Name
309A	Morning run binary search, math, two pointers	2000	x530
306D	Polygon constructive algorithms, geometry	2300	x327
306C	White, Black and White Again combinatorics, number theory	2100	x627
306B	Optimizer data structures, greedy, sortings	2100	x517
306A	Candies implementation	800	x8175
305E	Playing with String games	2300	x731
305D	Olya and Graph combinatorics, math	2200	x555
305C	Ivan and Powers of Two greedy, implementation	1600	x2658
305B	Continued Fractions brute force, implementation, math	1700	x2289
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x5222
304B	Calendar brute force, implementation	1300	x3158
304A	Pythagorean Theorem II brute force, math	1200	x12039
303E	Random Ranking dp, math, probabilities	3000	x383
303D	Rotatable Number math, number theory	2600	x352
303C	Minimum Modular brute force, graphs, math, number theory	2400	x967
303B	Rectangle Puzzle II implementation, math	1700	x1424
303A	Lucky Permutation Triple constructive algorithms, implementation, math	1300	x8570
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x9391
302A	Eugeny and Array implementation	800	x9761
301E	Yaroslav and Arrangements dp	2800	x406
301D	Yaroslav and Divisors data structures	2200	x3022
301C	Yaroslav and Algorithm constructive algorithms	2500	x488
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2796
301A	Yaroslav and Sequence constructive algorithms	1800	x3256
300E	Empire Strikes Back binary search, math, number theory	2300	x1105
300D	Painting Square dp, fft	2300	x855
300C	Beautiful Numbers brute force, combinatorics	1800	x11758
300B	Coach brute force, dfs and similar, graphs	1500	x7148
300A	Array brute force, constructive algorithms, implementation	1100	x27211
299B	Ksusha the Squirrel brute force, implementation	900	x6440
299A	Ksusha and Array brute force, number theory, sortings	1000	x9460
298B	Sail brute force, greedy, implementation	1200	x15801
298A	Snow Footprints greedy, implementation	1300	x11659
297E	Mystic Carvings data structures	3000	x433
297D	Color the Carpet constructive algorithms	2500	x628
297C	Splitting the Uniqueness constructive algorithms	2400	x1020
297B	Fish Weight constructive algorithms, greedy	1600	x3766
297A	Parity Game constructive algorithms	1700	x3860
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2682
296A	Yaroslav and Permutations greedy, math	1100	x26038
295E	Yaroslav and Points data structures	2500	x818
295D	Greg and Caves combinatorics, dp	2400	x740
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1939
295B	Greg and Graph dp, graphs, shortest paths	1700	x17657
295A	Greg and Array data structures, implementation	1400	x26006
294E	Shaass the Great dp, trees	2300	x1114
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x378
294C	Shaass and Lights combinatorics, number theory	1900	x4353
294B	Shaass and Bookshelf dp, greedy	1700	x5036
294A	Shaass and Oskols implementation, math	800	x28390
293E	Close Vertices data structures, divide and conquer, trees	2700	x1980
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x261
293C	Cube Problem brute force, math, number theory	2400	x635
293B	Distinct Paths brute force, combinatorics	2700	x941
293A	Weird Game games, greedy	1500	x3196
292E	Copying Data data structures	1900	x4883
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2770
292C	Beautiful IP Addresses brute force	2000	x1312
292B	Network Topology graphs, implementation	1200	x10513
292A	SMSC implementation	1100	x2864
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1577
291D	Parallel Programming *special problem, greedy	1600	x1539
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1852
291B	Command Line Arguments *special problem, implementation, strings	1300	x3087
291A	Spyke Talks *special problem, implementation, sortings	800	x6476
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x153
290E	HQ *special problem, constructive algorithms	2500	x226
290D	Orange *special problem, implementation	1400	x1904
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1672
290B	QR code *special problem, implementation	1500	x2617
290A	Mysterious strings *special problem, implementation	1400	x3236
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x18963
289A	Polo the Penguin and Segments brute force, implementation	1100	x10327
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x347
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x838
288C	Polo the Penguin and XOR operation implementation, math	1700	x2457
288B	Polo the Penguin and Houses combinatorics	1500	x3211
288A	Polo the Penguin and Strings greedy	1300	x6754
287B	Pipeline binary search, math	1700	x11537
287A	IQ Test brute force, implementation	1100	x21984
286E	Ladies' Shop constructive algorithms, fft, math	2800	x1020
286D	Tourists data structures, sortings	2600	x457
286C	Main Sequence greedy, implementation	2100	x1602
286B	Shifting implementation	2200	x1172
286A	Lucky Permutation constructive algorithms, math	1400	x3450
285E	Positions in Permutations combinatorics, dp, math	2600	x1294
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1676
285C	Building Permutation greedy, implementation, sortings	1200	x26331
285B	Find Marble implementation	1200	x15696
285A	Slightly Decreasing Permutations greedy, implementation	1100	x14138
284B	Cows and Poker Game brute force, implementation	1000	x7364
284A	Cows and Primitive Roots implementation, math, number theory	1400	x7345
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x856
283D	Cows and Cool Sequences dp, math, number theory	2400	x641
283C	Coin Troubles dp	2100	x1566
283B	Cow Program dfs and similar, dp, graphs	1700	x3931
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6872
282E	Sausage Maximization bitmasks, data structures, trees	2200	x4327
282D	Yet Another Number Game dp, games	2100	x1615
282C	XOR and OR constructive algorithms, implementation, math	1500	x10183