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Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
1567 Partial Sums combinatorics math number theory Statement C Codeforces Round 138 (Div. 1) {223} PROGRAMMING 2200
779 Number Challenge combinatorics dp implementation math number theory Statement E Codeforces Round 146 (Div. 1) {235} PROGRAMMING Codeforces Round #146 Tutorial 2600
1011 Vasily the Bear and Beautiful Strings combinatorics math number theory Statement D Codeforces Round 195 (Div. 2) {336} PROGRAMMING Tutorial Codeforces Round #195 (Div. 2) 2400
1515 On Number of Decompositions into Multipliers combinatorics math number theory Statement A Codeforces Round 232 (Div. 1) {396} PROGRAMMING 500.0 Codeforces Round #232 Editorial (restored)
1881 Pluses everywhere combinatorics dp math number theory Statement E Codeforces Round 295 (Div. 2) {520} PROGRAMMING Codeforces Round #295 Editorial (now with bonuses!) 2500
1967 GukiZ and Binary Operations combinatorics implementation math matrices number theory Statement D Codeforces Round 307 (Div. 2) {551} PROGRAMMING Tutorial 2400
6561 Gerald and Giant Chess combinatorics dp math number theory Statement C Codeforces Round 313 (Div. 1) {559} PROGRAMMING Codeforces Round 313 — Extended editoral 2500
1114 Present for Vitalik the Philatelist combinatorics math number theory Statement E Codeforces Round 325 (Div. 1) {585} PROGRAMMING Разбор Codeforces Round #325 2800
2589 Moodular Arithmetic combinatorics dfs and similar ds math number theory Statement B Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Editorial 2000
796 Cowslip Collections combinatorics math number theory Statement F CROC 2016 - Elimination Round {645} PROGRAMMING 2500
557 Move by Prime combinatorics math number theory Statement G IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) {653} PROGRAMMING IndiaHacks Finals 2016 — Editorial 3000
923 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
189 Test Data Generation combinatorics divide and conquer dp fft math number theory Statement F VK Cup 2017 - Round 3 {773} PROGRAMMING 3400
3005 Anton and School - 2 combinatorics dp math number theory Statement D Codeforces Round 404 (Div. 2) {785} PROGRAMMING Editorial 2200
2972 Winter is here combinatorics dp math number theory Statement D Codeforces Round 428 (Div. 2) {839} PROGRAMMING Codeforces Round #428 editorial 2200
577 Product transformation combinatorics math number theory Statement F Bubble Cup X - Finals [Online Mirror] {852} PROGRAMMING Tutorial 2300
3715 Counting Arrays combinatorics dp math number theory Statement E Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 2000
4479 Ralph And His Magic Field combinatorics constructive algorithms math number theory Statement B Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 1800
1366 Partitions combinatorics math number theory Statement G Educational Codeforces Round 41 (Rated for Div. 2) {961} PROGRAMMING Educational Codeforces Round 41 Editorial 2700
1616 Relatively Prime Powers combinatorics math number theory Statement F Educational Codeforces Round 50 (Rated for Div. 2) {1036} PROGRAMMING 61727 2400
1456 Ehab and the Expected GCD Problem combinatorics dp math number theory Statement E Codeforces Round 563 (Div. 2) {1174} PROGRAMMING Codeforces round #563 editorial 2500
7904 Submarine in the Rybinsk Sea (easy edition) combinatorics math number theory Statement D1 Codeforces Round 574 (Div. 2) {1195} PROGRAMMING Разбор Codeforces Round #574 (Div. 2) 1500
4674 Submarine in the Rybinsk Sea (hard edition) combinatorics math number theory Statement D2 Codeforces Round 574 (Div. 2) {1195} PROGRAMMING Разбор Codeforces Round #574 (Div. 2) 1700
1694 Natasha, Sasha and the Prefix Sums combinatorics dp math number theory Statement E Codeforces Round 581 (Div. 2) {1204} PROGRAMMING 69244 2400
2850 Divisor Paths combinatorics graphs greedy math number theory Statement E Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
6153 Modular Stability combinatorics math number theory Statement E Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 2000