Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
29:29:50
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Problems

#	Name
1305E	Kuroni and the Score Distribution constructive algorithms, greedy, implementation, math	2200	x3094
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x14510
1304A	Two Rabbits math	800	x25408
1303B	National Project math	1400	x15721
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x9334
1300A	Non-zero implementation, math	800	x20968
1299E	So Mean interactive, math	3400	x162
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, graphs, math, trees	3000	x439
1299A	Anu Has a Function brute force, greedy, math	1500	x12013
1297G	M-numbers *special problem, dp, math		x70
1296B	Food Buying math	900	x30127
1296A	Array with Odd Sum math	800	x41538
1295D	Same GCDs math, number theory	1800	x8861
1295B	Infinite Prefixes math, strings	1700	x9303
1294E	Obtain a Permutation greedy, implementation, math	1900	x4913
1294D	MEX maximizing data structures, greedy, implementation, math	1600	x11707
1294C	Product of Three Numbers greedy, math, number theory	1300	x34533
1294A	Collecting Coins math	800	x46599
1293B	JOE is on TV! combinatorics, greedy, math	1000	x21176
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x332
1292D	Chaotic V. dp, graphs, greedy, math, number theory, trees	2700	x810
1291A	Even But Not Even greedy, math, strings	900	x19534
1288B	Yet Another Meme Problem math	1100	x17035
1288A	Deadline binary search, brute force, math, ternary search	1100	x18242
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x243
1286D	LCC data structures, math, matrices, probabilities	3100	x582
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x636
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1423
1285C	Fadi and LCM brute force, math, number theory	1400	x23304
1285A	Mezo Playing Zoma math	800	x28037
1284F	New Year and Social Network data structures, graph matchings, graphs, math, trees	3200	x317
1284E	New Year and Castle Construction combinatorics, geometry, math, sortings	2500	x1299
1284C	New Year and Permutation combinatorics, math	1600	x7998
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x13108
1283B	Candies Division math	900	x21616
1283A	Minutes Before the New Year math	800	x49464
1282A	Temporarily unavailable implementation, math	900	x14765
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x61
1280E	Kirchhoff's Current Loss math	2900	x200
1280B	Beingawesomeism implementation, math	1800	x3928
1280A	Cut and Paste implementation, math	1700	x5394
1279D	Santa's Bot combinatorics, math, probabilities	1700	x6300
1279A	New Year Garland math	900	x16896
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x1869
1278B	A and B greedy, math	1500	x13253
1277D	Let's Play the Words? data structures, hashing, implementation, math	1900	x3116
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1655
1272A	Three Friends brute force, greedy, math, sortings	900	x20663
1271E	Common Number binary search, combinatorics, dp, math	2100	x3382
1271B	Blocks greedy, math	1300	x11329
1271A	Suits brute force, greedy, math	800	x14941
1270I	Xor on Figures constructive algorithms, fft, math	3500	x236
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x2222
1270F	Awesome Substrings math, strings	2600	x1134
1270E	Divide Points constructive algorithms, geometry, math	2300	x2370
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4672
1270C	Make Good bitmasks, constructive algorithms, math	1400	x14076
1270B	Interesting Subarray constructive algorithms, greedy, math	1200	x16350
1270A	Card Game games, greedy, math	800	x16948
1269A	Equation brute force, math	800	x21549
1268D	Invertation in Tournament brute force, divide and conquer, graphs, math	3200	x505
1268B	Domino for Young dp, greedy, math	2000	x5905
1267K	Key Storage combinatorics, math	2100	x1908
1267J	Just Arrange the Icons greedy, implementation, math	1800	x2808
1267G	Game Relics math, probabilities	3000	x653
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x103
1266D	Decreasing Debts constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers	2000	x3622
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9684
1266B	Dice Tower constructive algorithms, math	1000	x14975
1266A	Competitive Programmer chinese remainder theorem, math	1000	x15737
1265E	Beautiful Mirrors data structures, dp, math, probabilities	2100	x3641
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12566
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13686
1263A	Sweet Problem math	1100	x16295
1261F	Xor-Set bitmasks, divide and conquer, math	3100	x386
1260C	Infinite Fence greedy, math, number theory	1700	x8229
1260B	Obtain Two Zeroes binary search, math	1300	x15696
1260A	Heating math	1000	x14656
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2600	x607
1257B	Magic Stick math	1000	x20383
1257A	Two Rival Students greedy, math	800	x20492
1256A	Payment Without Change math	1000	x29329
1255A	Changing Volume math	800	x17179
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1414
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x3161
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4642
1253C	Sweets Eating dp, greedy, math, sortings	1500	x14219
1252K	Addition Robot data structures, math, matrices	2100	x1851
1250L	Divide The Students binary search, greedy, math	1500	x4095
1250H	Happy Birthday math	1500	x4048
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2605
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12599
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16736
1249B1	Books Exchange (easy version) dsu, math	1000	x20641
1249A	Yet Another Dividing into Teams math	800	x22233
1248B	Grow The Tree greedy, math, sortings	900	x16857
1248A	Integer Points geometry, math	1000	x14093
1245A	Good ol' Numbers Coloring math, number theory	1000	x14174
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1349
1244C	The Football Season brute force, math, number theory	2000	x7584