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']

< 1 2 3 ... 38 39 40 41 42 ... 100 101 102 >

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
211 Power Substring math number theory Statement G Hello 2018 {913} PROGRAMMING Tutorial 3100
128 Don't Exceed math probabilities Statement H Hello 2018 {913} PROGRAMMING Tutorial 3400
14329 Perfect Squares brute force implementation math Statement A Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1100
8685 Conan and Agasa play a Card Game games greedy implementation Statement B Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1300
3866 Travelling Salesman and Special Numbers brute force combinatorics dp Statement C Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1800
5482 Bash and a Tough Math Puzzle data structures number theory Statement D Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING 1900
1541 Palindromes in a Tree bitmasks data structures divide and conquer trees Statement E Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING 2400
953 Sum the Fibonacci bitmasks divide and conquer dp fft math Statement G Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2500
1705 Substrings in a String bitmasks brute force data structures string suffix structures strings Statement F Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2900
240 Ember and Storm's Tree Game combinatorics dp games trees Statement H Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2900
7847 Browser implementation Statement B Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 1300
7128 Permute Digits dp greedy Statement C Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 1700
3537 Almost Acyclic Graph dfs and similar graphs Statement D Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2200
4591 Physical Education Lessons data structures implementation sortings Statement E Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2300
2583 Imbalance Value of a Tree data structures ds graphs trees Statement F Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2500
1301 Coprime Arrays math number theory Statement G Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 2500
14921 Garden implementation Statement A Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 900
8676 Jamie and Alarm Snooze brute force implementation math Statement A Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 1200
5171 Jamie and Interesting Graph constructive algorithms graphs shortest paths Statement C Codeforces Round 457 (Div. 2) {916} PROGRAMMING 1600
1924 Jamie and Binary Sequence (changed after round) bitmasks greedy math Statement B Codeforces Round 457 (Div. 2) {916} PROGRAMMING 1700
1734 Jamie and Tree data structures trees Statement E Codeforces Round 457 (Div. 2) {916} PROGRAMMING 2600
521 Jamie and To-do List data structures interactive trees Statement D Codeforces Round 457 (Div. 2) {916} PROGRAMMING 2600
3582 MADMAX dfs and similar dp games graphs Statement B Codeforces Round 459 (Div. 1) {917} PROGRAMMING 1800
3537 The Monster dp greedy implementation math Statement A Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 1900
1229 Stranger Trees dp math matrices trees Statement D Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 2600
406 Pollywog combinatorics dp matrices Statement C Codeforces Round 459 (Div. 1) {917} PROGRAMMING 2800
137 Upside Down data structures string suffix structures strings trees Statement E Codeforces Round 459 (Div. 1) {917} PROGRAMMING 3000
17345 Eleven brute force implementation Statement A Codeforces Round 459 (Div. 2) {918} PROGRAMMING E 800
17175 Radio Station implementation strings Statement B Codeforces Round 459 (Div. 2) {918} PROGRAMMING 900
28775 Perfect Number binary search brute force dp implementation number theory Statement B Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1100
9041 Seat Arrangements brute force implementation Statement C Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1300
10405 Substring dfs and similar dp graphs Statement D Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1700
2175 Congruence Equation chinese remainder theorem math number theory Statement E Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 2100
343 A Game With Numbers games graphs shortest paths Statement F Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 2800
16233 Supermarket brute force greedy implementation Statement A Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 900
7859 Water The Garden implementation Statement A Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 1100
7459 Tea Queue implementation Statement B Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 1300
9429 Swap Adjacent Elements dfs and similar greedy math sortings two pointers Statement C Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 1500
7099 SUM and REPLACE brute force data structures ds number theory Statement F Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2000
6599 Connected Components? data structures dfs and similar ds graphs Statement E Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2100
1778 List Of Integers binary search bitmasks brute force combinatorics math number theory Statement G Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2300
741 Tanks dp greedy implementation Statement D Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 2600
0 Labyrinth-9 Statement 09 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-8 Statement 08 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-7 Statement 07 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-6 Statement 06 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-5 Statement 05 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-4 Statement 04 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-3 Statement 03 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-2 Statement 02 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-14 Statement 14 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-13 Statement 13 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-12 Statement 12 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-11 Statement 11 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-10 Statement 10 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-1 Statement 01 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
8611 Magic Forest brute force Statement B Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1300
11787 Cloning Toys implementation Statement A Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1400
7228 Cave Painting brute force number theory Statement C Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1600
4430 Robot Vacuum Cleaner greedy sortings Statement D Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1800
2186 Birds dp Statement E Codeforces Round 461 (Div. 2) {922} PROGRAMMING 2300
648 Divisibility constructive algorithms dp greedy number theory Statement F Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 2500
7390 Producing Snow binary search data structures Statement B VK Cup 2018 - Round 1 {923} PROGRAMMING 1600
5059 Primal Sport math number theory Statement A VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 1700
4358 Perfect Security data structures greedy strings trees Statement C VK Cup 2018 - Round 1 {923} PROGRAMMING 1900
1206 Picking Strings constructive algorithms implementation strings Statement D VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 2500
80 Public Service constructive algorithms graphs trees Statement F VK Cup 2018 - Round 1 {923} PROGRAMMING 2900
463 Perpetual Subtraction fft math matrices Statement E VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 3100
5076 Mystical Mosaic greedy implementation Statement A VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1400
5364 Three-level Laser binary search greedy two pointers Statement B VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1600
3898 Riverside Curio data structures dp greedy Statement C VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1800
876 Contact ATC Statement D VK Cup 2018 - Round 2 {924} PROGRAMMING 2500
521 Wardrobe Statement E VK Cup 2018 - Round 2 {924} PROGRAMMING 2600
232 Minimal Subset Difference dp Statement F VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 3400
3590 Stairs and Elevators binary search Statement A VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 1700
2214 Resource Distribution binary search implementation sortings Statement B VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 1800
1323 Big Secret constructive algorithms math Statement C VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2200
528 Aztec Catacombs constructive algorithms Statement D VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2700
412 May Holidays data structures trees Statement E VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2900
117 Parametric Circulation binary search flows Statement F VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 3300
3832 2-3-numbers implementation math Statement A VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1300
1894 Is This a Zebra? Statement C VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1600
1495 Large Bouquets Statement G VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1700
941 Choose Place Statement D VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1800
1774 Add Points Statement B VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1800
670 A Vital Problem Statement I VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1900
937 Merge Equal Elements Statement E VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING 2100
222 Endless Roses Most Beautiful Statement H VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 2300
243 Mobile Communications Statement F VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 2400
401 Segments data structures Statement J VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 2500
1 BuberPool Taxi Optimization Statement A VK Cup 2018 - Wild-card Round 2 {927} PROGRAMMING 2800
3421 Login Verification *special strings Statement A VK Cup 2018 - Квалификация 1 {928} PROGRAMMING 1600
2551 Chat *special dp Statement B VK Cup 2018 - Квалификация 1 {928} PROGRAMMING 1800
891 Dependency management *special graphs implementation Statement C VK Cup 2018 - Квалификация 1 {928} PROGRAMMING 2300
816 Autocompletion *special strings trees Statement D VK Cup 2018 - Квалификация 1 {928} PROGRAMMING 2400
2509 Прокат велосипедов *special greedy implementation Statement A VK Cup 2018 - Квалификация 2 {929} PROGRAMMING 1600
2049 Места в самолёте *special implementation Statement B VK Cup 2018 - Квалификация 2 {929} PROGRAMMING 1700
1162 Красивая команда *special combinatorics math Statement C VK Cup 2018 - Квалификация 2 {929} PROGRAMMING 2000
152 Пограничные врата Statement D VK Cup 2018 - Квалификация 2 {929} PROGRAMMING 2600
7407 Peculiar apple-tree dfs and similar graphs trees Statement A Codeforces Round 468 (Div. 1, based on Technocup 2018 Final Round) {930} PROGRAMMING 1500