Problemset - Codeforces

Codeforces and Polygon may be unavailable from May 23, 4:00 (UTC) to May 23, 7:00 (UTC) due to technical maintenance. ×

Problems

#	Name
4A	Watermelon brute force, math	800	x484745
71A	Way Too Long Words strings	800	x356107
231A	Team brute force, greedy	800	x301375
1A	Theatre Square math	1000	x246953
282A	Bit++ implementation	800	x238182
158A	Next Round *special problem, implementation	800	x233838
50A	Domino piling greedy, math	800	x230095
263A	Beautiful Matrix implementation	800	x226347
112A	Petya and Strings implementation, strings	800	x210468
339A	Helpful Maths greedy, implementation, sortings, strings	800	x199544
281A	Word Capitalization implementation, strings	800	x197376
236A	Boy or Girl brute force, implementation, strings	800	x194667
118A	String Task implementation, strings	1000	x182162
791A	Bear and Big Brother implementation	800	x180266
266A	Stones on the Table implementation	800	x179098
617A	Elephant math	800	x171348
546A	Soldier and Bananas brute force, implementation, math	800	x168887
59A	Word implementation, strings	800	x163259
977A	Wrong Subtraction implementation	800	x155987
69A	Young Physicist implementation, math	1000	x155902
96A	Football implementation, strings	900	x149913
110A	Nearly Lucky Number implementation	800	x143499
734A	Anton and Danik implementation, strings	800	x141187
41A	Translation implementation, strings	800	x135849
116A	Tram implementation	800	x132856
677A	Vanya and Fence implementation	800	x131543
271A	Beautiful Year brute force	800	x128475
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x127480
58A	Chat room greedy, strings	1000	x122825
1030A	In Search of an Easy Problem implementation	800	x120813
122A	Lucky Division brute force, number theory	1000	x116740
467A	George and Accommodation implementation	800	x114462
344A	Magnets implementation	800	x112502
160A	Twins greedy, sortings	900	x111407
486A	Calculating Function implementation, math	800	x110065
136A	Presents implementation	800	x109804
200B	Drinks implementation, math	800	x108470
318A	Even Odds math	900	x106835
61A	Ultra-Fast Mathematician implementation	800	x104198
228A	Is your horseshoe on the other hoof? implementation	800	x102612
133A	HQ9+ implementation	900	x100450
705A	Hulk implementation	800	x99942
405A	Gravity Flip greedy, implementation, sortings	900	x94963
1328A	Divisibility Problem math	800	x94009
469A	I Wanna Be the Guy greedy, implementation	800	x91844
520A	Pangram implementation, strings	800	x90379
144A	Arrival of the General implementation	800	x89513
479A	Expression brute force, math	1000	x89240
148A	Insomnia cure constructive algorithms, implementation, math	800	x87560
996A	Hit the Lottery dp, greedy	800	x84806
443A	Anton and Letters constructive algorithms, implementation	800	x84405
580A	Kefa and First Steps brute force, dp, implementation	900	x84333
208A	Dubstep strings	900	x84016
785A	Anton and Polyhedrons implementation, strings	800	x82752
158B	Taxi *special problem, greedy, implementation	1100	x82751
25A	IQ test brute force	1300	x81590
131A	cAPS lOCK implementation, strings	1000	x81575
268A	Games brute force	800	x81375
1335A	Candies and Two Sisters math	800	x79125
141A	Amusing Joke implementation, sortings, strings	800	x78274
4C	Registration System data structures, hashing, implementation	1300	x77635
510A	Fox And Snake implementation	800	x77564
337A	Puzzles greedy	900	x75876
230A	Dragons greedy, sortings	1000	x74713
427A	Police Recruits implementation	800	x72902
1352A	Sum of Round Numbers implementation, math	800	x72600
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x71506
723A	The New Year: Meeting Friends implementation, math, sortings	800	x71331
750A	New Year and Hurry binary search, brute force, implementation, math	800	x71308
155A	I_love_\%username\% brute force	800	x70949
230B	T-primes binary search, implementation, math, number theory	1300	x70370
732A	Buy a Shovel brute force, constructive algorithms, implementation, math	800	x67736
581A	Vasya the Hipster implementation, math	800	x67457
1154A	Restoring Three Numbers math	800	x66721
339B	Xenia and Ringroad implementation	1000	x66669
151A	Soft Drinking implementation, math	800	x66321
1742A	Sum implementation	800	x65310
1703A	YES or YES? brute force, implementation, strings	800	x63367
1399A	Remove Smallest greedy, sortings	800	x63053
189A	Cut Ribbon brute force, dp	1300	x63016
451A	Game With Sticks implementation	900	x62938
1409A	Yet Another Two Integers Problem greedy, math	800	x62798
630A	Again Twenty Five! number theory	800	x62420
381A	Sereja and Dima greedy, implementation, two pointers	800	x60789
1692A	Marathon implementation	800	x60396
1512A	Spy Detected! brute force, implementation	800	x60257
466A	Cheap Travel implementation	1200	x59870
32B	Borze expression parsing, implementation	800	x59187
706B	Interesting drink binary search, dp, implementation	1100	x58716
1676A	Lucky? implementation	800	x58505
1669A	Division? implementation	800	x57652
758A	Holiday Of Equality implementation, math	800	x57620
472A	Design Tutorial: Learn from Math math, number theory	800	x57232
432A	Choosing Teams greedy, implementation, sortings	800	x56882
579A	Raising Bacteria bitmasks	1000	x56663
1807A	Plus or Minus implementation	800	x56350
1560A	Dislike of Threes implementation	800	x56192
490A	Team Olympiad greedy, implementation, sortings	800	x55825
1475A	Odd Divisor math, number theory	900	x55696
1791A	Codeforces Checking implementation, strings	800	x55500