Codeforces problemset search & solutions
Exclude tags.

Review the problem statement from Codeforces (link will open a new tab). When you've matched your problem, go to the solutions.

Get exact match for tags using this format, eg: [u'brute force', 'dp']

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
3473 Calendar Ambiguity math number theory Statement E Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
27581 Distance and Axis math number theory Statement A Codeforces Round 665 (Div. 2) {1401} PROGRAMMING 500.0 Codeforces Round #665 (Div. 2) Editorial
13131 Division math number theory Statement A Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad) {1444} PROGRAMMING 500.0 Codeforces Round #680 Editorial
18469 Row GCD math number theory Statement A Codeforces Round 691 (Div. 1) {1458} PROGRAMMING 500.0 Codeforces Round #691 Editorial (finished)
21361 Cat Cycle math number theory Statement B Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
5923 The Number of Pairs math number theory Statement D Educational Codeforces Round 106 (Rated for Div. 2) {1499} PROGRAMMING Educational Codeforces Round 106 Editorial
24275 Perfectly Imperfect Array math number theory Statement A Codeforces Round 716 (Div. 2) {1514} PROGRAMMING 500.0 Codeforces round #716 editorial
25655 Potion-making math number theory Statement A Educational Codeforces Round 109 (Rated for Div. 2) {1525} PROGRAMMING 90793
14338 Strange Function math number theory Statement C Codeforces Round 729 (Div. 2) {1542} PROGRAMMING 1500.0
32716 Gregor and Cryptography math number theory Statement A Codeforces Round 736 (Div. 2) {1549} PROGRAMMING 500.0 Codeforces Round 736 Editorial
31241 Digits Sum math number theory Statement A Harbour.Space Scholarship Contest 2021-2022 (open for everyone, rated, Div. 1 + Div. 2) {1553} PROGRAMMING 250.0 Harbour.Space Scholarship Contest 2021-2022 (Div. 1 + Div. 2) Editorial
13762 Windblume Ode math number theory Statement A Technocup 2022 - Elimination Round 1 {1583} PROGRAMMING 500.0 Editorial for Technocup 2022 — Elimination Round 1 and Codeforces Round #749 (Div. 1+Div. 2)
20288 All are Same math number theory Statement D1 Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
20681 A.M. Deviation math number theory Statement A Codeforces Round 754 (Div. 2) {1605} PROGRAMMING 500.0 tutorial 800
9281 X-Magic Pair math number theory Statement D Educational Codeforces Round 117 (Rated for Div. 2) {1612} PROGRAMMING 97164
595 Equal LCM Subsets math number theory Statement H CodeTON Round 1 (Div. 1 + Div. 2, Rated, Prizes!) {1656} PROGRAMMING 3750.0 Tutorial
318 Long Binary String math matrices meet-in-the-middle number theory Statement G Codeforces Round 803 (Div. 2) {1698} PROGRAMMING 3250.0 Codeforces Round #803 (Div. 2) Editorial
19573 Madoka and Strange Thoughts math number theory Statement A Codeforces Round 818 (Div. 2) {1717} PROGRAMMING 500.0 Codeforces Round #818 (Div. 2) Editorial. 800
22505 Burenka Plays with Fractions math number theory Statement A Codeforces Round 815 (Div. 2) {1720} PROGRAMMING 500.0 Codeforces Round #815 (Div. 2) Editorial
18182 Playing with GCD math number theory Statement B Codeforces Round 825 (Div. 2) {1736} PROGRAMMING 1000.0 Codeforces Round #825 (Div. 2) Editorial
20402 Factorise N+M math number theory Statement A Codeforces Round 831 (Div. 1 + Div. 2) {1740} PROGRAMMING 500.0 Tutorial 800
5621 Counting Arrays math number theory Statement D Educational Codeforces Round 138 (Rated for Div. 2) {1749} PROGRAMMING 108269
9810 Hossam and Trainees math number theory Statement C Codeforces Round 837 (Div. 2) {1771} PROGRAMMING 1750.0 Codeforces Round #837 (Div. 2) Editorial
18095 Lunatic Never Content math number theory Statement B Codeforces Round 870 (Div. 2) {1826} PROGRAMMING 1000.0 Codeforces Round #870 (Div. 2) Editorial 1100
23741 Permutation Swap math number theory Statement B Codeforces Round 873 (Div. 2) {1828} PROGRAMMING 1000.0 Codeforces Round #873 (Div. 1 & 2) Editorial 900
23646 Non-coprime Split math number theory Statement C Codeforces Round 895 (Div. 3) {1872} PROGRAMMING Codeforces Round 895 (Div. 3) Editorial
11146 Joyboard math number theory Statement C Codeforces Round 902 (Div. 2, based on COMPFEST 15 - Final Round) {1877} PROGRAMMING 1500.0 Codeforces Round #902 (Div. 1, Div. 2, based on COMPFEST 15 — Final Round) Editorial
4167 Vasilije Loves Number Theory math number theory Statement F Codeforces Round 900 (Div. 3) {1878} PROGRAMMING Codeforces round #900 (Div.3) Editorial
17718 Divide and Equalize math number theory Statement D Codeforces Round 903 (Div. 3) {1881} PROGRAMMING 121327
13674 Yarik and Musical Notes math number theory Statement D Codeforces Round 909 (Div. 3) {1899} PROGRAMMING Разбор Codeforces Round 909 (Div. 3)
17417 Make Almost Equal With Mod math number theory Statement B Pinely Round 3 (Div. 1 + Div. 2) {1909} PROGRAMMING 1000.0 Editorial of Pinely Round 3 (Div. 1 + Div. 2)
22808 Fireworks math number theory Statement B Codeforces Round 935 (Div. 3) {1945} PROGRAMMING 127377
22573 Dora's Set math number theory Statement A Codeforces Round 969 (Div. 2) {2007} PROGRAMMING 500.0
12162 Dora and C++ math number theory Statement C Codeforces Round 969 (Div. 2) {2007} PROGRAMMING 1000.0
12436 Sakurako's Box math number theory Statement F Codeforces Round 970 (Div. 3) {2008} PROGRAMMING