Problemset - Codeforces

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Educational Codeforces Round 93 (Rated for Div. 2)
13:37:22
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number theory

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Problems

#	Name
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x35
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x77
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x84
1310F	Bad Cryptography math, number theory	3400	x29
1190F	Tokitsukaze and Powers number theory, probabilities	3400	x47
756F	Long number expression parsing, math, number theory	3400	x54
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x79
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x79
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x88
1103E	Radix sum fft, math, number theory	3400	x106
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x100
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x176
582D	Number of Binominal Coefficients dp, math, number theory	3300	x233
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x31
500G	New Year Running number theory, trees	3200	x70
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x103
1223G	Wooden Raft binary search, math, number theory	3200	x113
913G	Power Substring math, number theory	3200	x115
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x315
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x49
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x163
516E	Drazil and His Happy Friends math, number theory	3100	x199
653G	Move by Prime combinatorics, math, number theory	3100	x225
809E	Surprise me! divide and conquer, math, number theory, trees	3100	x326
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x865
698F	Coprime Permutation combinatorics, number theory	3000	x123
346E	Doodle Jump math, number theory	3000	x142
819D	Mister B and Astronomers number theory	2900	x122
717A	Festival Organization math, number theory	2900	x153
819C	Mister B and Beacons on Field number theory	2900	x156
449E	Jzzhu and Squares dp, math, number theory	2900	x174
896D	Nephren Runs a Cinema chinese remainder theorem, combinatorics, math, number theory	2900	x204
1030G	Linear Congruential Generator number theory	2900	x234
1198F	GCD Groups 2 greedy, number theory, probabilities	2900	x320
1285F	Classical? binary search, combinatorics, number theory	2900	x468
338D	GCD Table chinese remainder theorem, math, number theory	2900	x517
585E	Present for Vitalik the Philatelist combinatorics, math, number theory	2900	x532
722F	Cyclic Cipher chinese remainder theorem, data structures, implementation, number theory, two pointers	2800	x284
986E	Prince's Problem brute force, data structures, math, number theory, trees	2800	x369
1208G	Polygons greedy, math, number theory	2800	x400
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x428
671C	Ultimate Weirdness of an Array data structures, number theory	2800	x465
774F	Pens And Days Of Week *special problem, binary search, number theory	2700	x55
774G	Perfectionist Arkadiy *special problem, number theory	2700	x57
838D	Airplane Arrangements math, number theory	2700	x136
1016G	Appropriate Team bitmasks, math, number theory	2700	x148
1182F	Maximum Sine binary search, data structures, number theory	2700	x181
1109E	Sasha and a Very Easy Test data structures, number theory	2700	x268
870F	Paths data structures, number theory	2700	x298
995E	Number Clicker divide and conquer, graphs, meet-in-the-middle, number theory	2700	x333
1034C	Region Separation combinatorics, dp, number theory, trees	2700	x390
961G	Partitions combinatorics, math, number theory	2700	x453
1292D	Chaotic V. dp, graphs, greedy, math, number theory, trees	2700	x496
906D	Power Tower chinese remainder theorem, math, number theory	2700	x705
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x185
303D	Rotatable Number math, number theory	2600	x189
185D	Visit of the Great math, number theory	2600	x264
360D	Levko and Sets number theory	2600	x275
93E	Lostborn dp, math, number theory	2600	x290
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2600	x336
542D	Superhero's Job dfs and similar, dp, hashing, math, number theory	2600	x380
982E	Billiard geometry, number theory	2600	x383
963C	Cutting Rectangle brute force, math, number theory	2600	x404
703E	Mishka and Divisors dp, number theory	2600	x413
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x457
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x468
724G	Xor-matic Number of the Graph bitmasks, graphs, math, number theory, trees	2600	x530
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x543
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x567
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x1190
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x231
645F	Cowslip Collections combinatorics, math, number theory	2500	x441
710D	Two Arithmetic Progressions math, number theory	2500	x567
792E	Colored Balls greedy, math, number theory	2500	x662
1097F	Alex and a TV Show bitmasks, combinatorics, number theory	2500	x744
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x747
594D	REQ data structures, number theory	2500	x753
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x754
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x1041
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x1154
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x1599
55D	Beautiful numbers dp, number theory	2500	x1697
73E	Morrowindows math, number theory	2400	x238
200E	Tractor College implementation, math, number theory, ternary search	2400	x250
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x296
1045B	Space Isaac hashing, number theory	2400	x349
283D	Cows and Cool Sequences dp, math, number theory	2400	x383
922F	Divisibility constructive algorithms, dp, greedy, number theory	2400	x429
758F	Geometrical Progression brute force, math, number theory	2400	x442
293C	Cube Problem brute force, math, number theory	2400	x456
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2400	x511
83D	Numbers dp, math, number theory	2400	x538
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x552
17D	Notepad number theory	2400	x558
582C	Superior Periodic Subarrays number theory	2400	x577
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x599
303C	Minimum Modular brute force, graphs, math, number theory	2400	x654
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x671
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x699
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x739

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