Problemset - Codeforces

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Problems

#	Name
518E	Arthur and Questions greedy, implementation, math, ternary search	2200	x1004
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x7054
516E	Drazil and His Happy Friends math, number theory	3100	x505
515C	Drazil and Factorial greedy, math, sortings	1400	x26137
515A	Drazil and Date math	1000	x20400
514B	Han Solo and Lazer Gun brute force, data structures, geometry, implementation, math	1400	x20928
513B2	Permutations bitmasks, divide and conquer, math	1800	x2639
513A	Game constructive algorithms, math	800	x20476
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5648
509E	Pretty Song math, strings	2000	x1802
509D	Restoring Numbers constructive algorithms, math	2200	x760
508B	Anton and currency you all know greedy, math, strings	1300	x22728
507C	Guess Your Way Out! implementation, math, trees	1700	x4384
507B	Amr and Pins geometry, math	1400	x24832
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5829
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8908
497D	Gears brute force, geometry, math	2900	x231
496A	Minimum Difficulty brute force, implementation, math	900	x16485
495B	Modular Equations math, number theory	1600	x7019
493E	Vasya and Polynomial math	2800	x485
493D	Vasya and Chess constructive algorithms, games, math	1700	x9714
492E	Vanya and Field math	2000	x1631
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3161
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x76624
491B	New York Hotel greedy, math	2100	x568
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2144
490C	Hacking Cypher brute force, math, number theory, strings	1700	x9107
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2126
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2795
486E	LIS of Sequence data structures, dp, greedy, hashing, math	2200	x2282
486D	Valid Sets dfs and similar, dp, math, trees	2100	x4051
486A	Calculating Function implementation, math	800	x120980
485A	Factory implementation, math, matrices	1400	x8312
484C	Strange Sorting implementation, math	2600	x594
484B	Maximum Value binary search, math, sortings, two pointers	2100	x7078
483B	Friends and Presents binary search, math	1800	x4095
483A	Counterexample brute force, implementation, math, number theory	1100	x23241
479A	Expression brute force, math	1000	x95315
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x36903
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4693
476C	Dreamoon and Sums math	1600	x5750
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x31126
476A	Dreamoon and Stairs implementation, math	1000	x44355
475D	CGCDSSQ brute force, data structures, math	2000	x4990
474F	Ant colony data structures, math, number theory	2100	x8839
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x259
472A	Design Tutorial: Learn from Math math, number theory	800	x60761
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3571
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x323
468C	Hack it! binary search, constructive algorithms, math	2500	x2424
468A	24 Game constructive algorithms, greedy, math	1500	x8007
466B	Wonder Room brute force, math	2000	x4930
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1617
463B	Caisa and Pylons brute force, implementation, math	1100	x27485
461D	Appleman and Complicated Task dsu, math	2800	x366
460E	Roland and Rose brute force, geometry, math, sortings	2700	x343
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x1003
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x12429
460A	Vasya and Socks brute force, implementation, math	900	x46439
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6193
457E	Flow Optimality constructive algorithms, flows, math	3000	x96
457D	Bingo! combinatorics, math, probabilities	2700	x282
457A	Golden System math, meet-in-the-middle	1700	x1284
456B	Fedya and Maths math, number theory	1200	x16853
452C	Magic Trick combinatorics, math, probabilities	2100	x1632
451D	Count Good Substrings math	2000	x4782
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3389
450B	Jzzhu and Sequences implementation, math	1300	x26486
449E	Jzzhu and Squares dp, math, number theory	2900	x285
449A	Jzzhu and Chocolate greedy, math	1700	x3951
446E	DZY Loves Bridges math, matrices	3100	x134
446D	DZY Loves Games math, matrices, probabilities	2800	x417
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3373
444A	DZY Loves Physics greedy, math	1600	x3426
442B	Andrey and Problem greedy, math, probabilities	1800	x5276
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x710
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1112
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1574
438D	The Child and Sequence data structures, math	2300	x8766
436B	Om Nom and Spiders implementation, math	1400	x3056
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2489
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2323
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1435
424C	Magic Formulas math	1600	x5443
417E	Square Table constructive algorithms, math, probabilities	2400	x842
417A	Elimination dp, implementation, math	1500	x3027
416D	Population Size greedy, implementation, math	2400	x951
415B	Mashmokh and Tokens binary search, greedy, implementation, math	1500	x6322
413C	Jeopardy! greedy, math	1400	x2388
407C	Curious Array brute force, combinatorics, implementation, math	2500	x1012
407A	Triangle brute force, geometry, implementation, math	1600	x4911
406E	Hamming Triples implementation, math, two pointers	2800	x248
405D	Toy Sum greedy, implementation, math	1700	x3125
405C	Unusual Product implementation, math	1600	x4680
404B	Marathon implementation, math	1500	x2934
402E	Strictly Positive Matrix graphs, math	2200	x2201
402D	Upgrading Array dp, greedy, math, number theory	1800	x2626
402A	Nuts greedy, math	1100	x4614
401E	Olympic Games math	2500	x168
401B	Sereja and Contests greedy, implementation, math	1200	x4436