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1023 PolandBall and Many Other Balls combinatorics divide and conquer dp fft math number theory Statement G 8VC Venture Cup 2017 - Elimination Round {755} PROGRAMMING 8VC Venture Cup 2017 — Elimination Round [Editorial] 3100
218 Test Data Generation combinatorics divide and conquer dp fft math number theory Statement F VK Cup 2017 - Round 3 {773} PROGRAMMING VK Cup 2017 Round 3 + Codeforces Round #412 -- Tutorial 3400
211 Epic Convolution chinese remainder theorem fft math number theory Statement H Mail.Ru Cup 2018 Round 1 {1054} PROGRAMMING Editorial 3400
281 Radix sum fft math number theory Statement E Codeforces Round 534 (Div. 1) {1103} PROGRAMMING Codeforces Round #534 — Editorial 3300
154 Heidi Learns Hashing (Hard) fft math number theory Statement A3 Helvetic Coding Contest 2019 online mirror (teams allowed, unrated) {1184} PROGRAMMING helvetic-coding-contest-2019-editorial.pdf 3100
730 Divisor Set divide and conquer fft greedy math number theory Statement G Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 2700
1274 Running Competition bitmasks fft math number theory Statement G Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
264 School Clubs dp fft math number theory probabilities Statement E Codeforces Round 700 (Div. 1) {1479} PROGRAMMING 4000.0 Editorial of Codeforces Round #700
2708 Mocha and Stars combinatorics dp fft math number theory Statement E Codeforces Round 738 (Div. 2) {1559} PROGRAMMING 3000.0 Tutorial (en) 2200
427 Basis combinatorics fft math number theory Statement F Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
2262 Partial Sorting combinatorics fft math number theory Statement E Codeforces Round 842 (Div. 2) {1768} PROGRAMMING 2250.0 Codeforces Round #842 (Div. 2) Editorial
431 Swimmers in the Pool fft math number theory Statement F Educational Codeforces Round 151 (Rated for Div. 2) {1845} PROGRAMMING 117791
116 Cyclic Hamming (Easy Version) divide and conquer dp fft math number theory Statement H1 CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) {1896} PROGRAMMING 4000.0 CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
141 Cyclic Hamming (Hard Version) dp fft math number theory Statement H2 CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) {1896} PROGRAMMING 1000.0 CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
559 Prime Split Game fft games math number theory Statement H Pinely Round 4 (Div. 1 + Div. 2) {1991} PROGRAMMING 3500.0 Video Tutorial
270 ABBA Counting fft math number theory strings Statement E Codeforces Round 1082 (Div. 1) {2201} PROGRAMMING 3000.0 Codeforces Round 1082 (Div. 1, Div. 2) Complete Editorial