Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 973 (Div. 2)
09:07:05
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

math

Add tag

Problems

#	Name
442B	Andrey and Problem greedy, math, probabilities	1800	x5221
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x695
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1102
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1562
438D	The Child and Sequence data structures, math	2300	x8496
436B	Om Nom and Spiders implementation, math	1400	x3048
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2480
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2312
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1422
424C	Magic Formulas math	1600	x5333
417E	Square Table constructive algorithms, math, probabilities	2400	x820
417A	Elimination dp, implementation, math	1500	x2967
416D	Population Size greedy, implementation, math	2400	x942
415B	Mashmokh and Tokens binary search, greedy, implementation, math	1500	x6248
413C	Jeopardy! greedy, math	1400	x2368
407C	Curious Array brute force, combinatorics, implementation, math	2500	x988
407A	Triangle brute force, geometry, implementation, math	1600	x4868
406E	Hamming Triples implementation, math, two pointers	2800	x234
405D	Toy Sum greedy, implementation, math	1700	x3112
405C	Unusual Product implementation, math	1600	x4615
404B	Marathon implementation, math	1500	x2917
402E	Strictly Positive Matrix graphs, math	2200	x2179
402D	Upgrading Array dp, greedy, math, number theory	1800	x2605
402A	Nuts greedy, math	1100	x4587
401E	Olympic Games math	2500	x168
401B	Sereja and Contests greedy, implementation, math	1200	x4426
401A	Vanya and Cards implementation, math	800	x16148
400C	Inna and Huge Candy Matrix implementation, math	1500	x2887
397B	On Corruption and Numbers constructive algorithms, implementation, math		x749
396E	On Iteration of One Well-Known Function math		x148
396D	On Sum of Number of Inversions in Permutations combinatorics, math		x421
396B	On Sum of Fractions math, number theory		x1075
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1501
394D	Physical Education and Buns brute force, implementation, math		x266
394B	Very Beautiful Number math		x571
392C	Yet Another Number Sequence combinatorics, math, matrices		x589
392A	Blocked Points math		x970
389A	Fox and Number Game greedy, math	1000	x14030
388D	Fox and Perfect Sets math	2700	x442
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2467
385E	Bear in the Field math, matrices	2300	x585
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9598
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9862
382B	Number Busters binary search, math	2000	x1401
380D	Sereja and Cinema combinatorics, math	2500	x462
376A	Lever implementation, math	900	x9310
375E	Red and Black Tree dp, implementation, math	3000	x405
375A	Divisible by Seven math, number theory	1600	x4813
373B	Making Sequences is Fun binary search, implementation, math	1600	x2472
372C	Watching Fireworks is Fun data structures, dp, math	2100	x4075
371E	Subway Innovation greedy, math, two pointers	2000	x1288
371B	Fox Dividing Cheese math, number theory	1300	x11294
371A	K-Periodic Array greedy, implementation, math	1000	x6034
370A	Rook, Bishop and King graphs, math, shortest paths	1100	x10143
369B	Valera and Contest constructive algorithms, implementation, math	1400	x6458
366E	Dima and Magic Guitar brute force, implementation, math	2200	x766
364D	Ghd brute force, math, probabilities	2900	x2078
362C	Insertion Sort data structures, dp, implementation, math	1900	x1743
362A	Two Semiknights Meet greedy, math	1500	x2657
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x8024
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x5056
359C	Prime Number math, number theory	1900	x3024
359B	Permutation constructive algorithms, dp, math	1400	x7934
356B	Xenia and Hamming implementation, math	1900	x1922
354A	Vasya and Robot brute force, greedy, math	1500	x5467
353C	Find Maximum implementation, math, number theory	1600	x4816
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2275
353A	Domino implementation, math	1200	x18440
352A	Jeff and Digits brute force, implementation, math	1000	x25554
351A	Jeff and Rounding dp, greedy, implementation, math	1800	x2915
348A	Mafia binary search, math, sortings	1600	x12976
347B	Fixed Points brute force, implementation, math	1100	x9278
346E	Doodle Jump math, number theory	3000	x263
346C	Number Transformation II greedy, math	2200	x1432
346A	Alice and Bob games, math, number theory	1600	x8659
344B	Simple Molecules brute force, graphs, math	1200	x8828
343A	Rational Resistance math, number theory	1600	x8711
340E	Iahub and Permutations combinatorics, math	2000	x2457
340C	Tourist Problem combinatorics, implementation, math	1600	x4214
340A	The Wall math	1200	x7563
338D	GCD Table chinese remainder theorem, math, number theory	2900	x1144
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4878
337B	Routine Problem greedy, math, number theory	1400	x9321
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x972
336B	Vasily the Bear and Fly math	1900	x1212
336A	Vasily the Bear and Triangle implementation, math	1000	x10053
335E	Counting Skyscrapers dp, math, probabilities	2800	x221
332D	Theft of Blueprints graphs, math	2400	x384
329E	Evil math	3100	x169
327C	Magic Five combinatorics, math	1700	x3189
327B	Hungry Sequence math	1200	x19592
325B	Stadium and Games binary search, math	1800	x1510
322B	Ciel and Flowers combinatorics, math	1600	x11725
321D	Ciel and Flipboard dp, greedy, math	2900	x545
321A	Ciel and Robot binary search, implementation, math	1700	x3606
319A	Malek Dance Club combinatorics, math	1600	x2784
318A	Even Odds math	900	x112663
316E3	Summer Homework data structures, math	2300	x528
316E2	Summer Homework data structures, math	2300	x394
316D3	PE Lesson dp, math	2400	x564