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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 18703 | Longest Regular Bracket Sequence | constructive algorithms data structures dp greedy sortings strings | Statement | C | Codeforces Beta Round 5 {5} | PROGRAMMING | C, D и E с CBR5 - разбор | 1900 | |
| 2110 | Big Maximum Sum | data structures dp greedy implementation math trees | Statement | D | Codeforces Beta Round 67 (Div. 2) {75} | PROGRAMMING | Codeforces Beta Round #67 (Div. 2) Editorial | 2100 | |
| 2455 | Plus and xor | dp greedy math | Statement | D | All-Ukrainian School Olympiad in Informatics {76} | PROGRAMMING | All-Ukrainian School Olympiad in Informatics: editorial (A,B,C,D,E,F) | 1800 | |
| 16732 | Little Girl and Maximum XOR | bitmasks dp greedy implementation math | Statement | D | Codeforces Round 169 (Div. 2) {276} | PROGRAMMING | Codeforces Round #169 — Unofficial Editorial | 1800 | |
| 1626 | Beautiful Decomposition | dp games greedy number theory | Statement | E | Codeforces Round 171 (Div. 2) {279} | PROGRAMMING | Codeforces Round #171 (Div. 2) Разбор Задач | 2100 | |
| 621 | Ciel and Flipboard | dp greedy math | Statement | D | Codeforces Round 190 (Div. 1) {321} | PROGRAMMING | Codeforces Round #190 — Editorial | 2900 | |
| 15222 | Color the Fence | data structures dp greedy implementation | Statement | B | Codeforces Round 202 (Div. 2) {349} | PROGRAMMING | Editorial for Codeforces Round #202 | 1700 | |
| 3110 | Jeff and Rounding | dp greedy implementation math | Statement | A | Codeforces Round 204 (Div. 1) {351} | PROGRAMMING | Codeforces Round #204 — tutorial | 1900 | |
| 2802 | Upgrading Array | dp greedy math number theory | Statement | D | Codeforces Round 236 (Div. 2) {402} | PROGRAMMING | Editorial Codeforces Round #236 | 2000 | |
| 2713 | LIS of Sequence | data structures dp greedy hashing math | Statement | E | Codeforces Round 277 (Div. 2) {486} | PROGRAMMING | Codeforces Round #277(Div. 2) Editorial | 2400 | |
| 11465 | Covered Path | dp greedy math | Statement | B | Codeforces Round 298 (Div. 2) {534} | PROGRAMMING | 1400 | ||
| 5887 | Vanya and Scales | brute force dp greedy math meet-in-the-middle number theory | Statement | C | Codeforces Round 308 (Div. 2) {552} | PROGRAMMING | Codeforces #308 (Div. 2) Editorial | 1800 | |
| 1762 | Vanya and Brackets | brute force dp expression parsing greedy implementation strings | Statement | E | Codeforces Round 308 (Div. 2) {552} | PROGRAMMING | Codeforces #308 (Div. 2) Editorial | 2300 | |
| 4231 | Arthur and Table | brute force data structures dp greedy math sortings | Statement | C | Codeforces Round 311 (Div. 2) {557} | PROGRAMMING | Codeforces Round #311 (Div.2) Editorial | 1900 | |
| 8297 | Alternative Thinking | dp greedy math | Statement | A | Codeforces Round 334 (Div. 1) {603} | PROGRAMMING | Codeforces Round #334 Bonus Editorial: More Ideas on Div. 1 E | 1600 | |
| 752 | Raffles | data structures dp greedy math | Statement | G | 8VC Venture Cup 2016 - Elimination Round {626} | PROGRAMMING | 23522 | 3000 | |
| 3657 | Thief in a Shop | divide and conquer dp fft math | Statement | E | Educational Codeforces Round 9 {632} | PROGRAMMING | 43493 | 2500 | |
| 24260 | Joysticks | dp greedy implementation math | Statement | A | Codeforces Round 345 (Div. 2) {651} | PROGRAMMING | 1100 | ||
| 10015 | Santa Claus and Candies | dp greedy math | Statement | A | Testing Round 13 {753} | PROGRAMMING | 1100 | ||
| 2963 | Ability To Convert | constructive algorithms dp greedy math strings | Statement | D | Codeforces Round 392 (Div. 2) {758} | PROGRAMMING | Codeforces Round #392 (Div. 2) Editorial | 1900 | |
| 5082 | Divide by Three | dp greedy math number theory | Statement | C | Educational Codeforces Round 18 {792} | PROGRAMMING | Educational Codeforces Round 18 - Editorial | 2000 | |
| 3297 | My pretty girl Noora | brute force dp greedy math number theory | Statement | D | Codeforces Round 422 (Div. 2) {822} | PROGRAMMING | Codeforces Round #422 (Div. 2) Editorial | 1800 | |
| 497 | Tournament Construction | constructive algorithms dp graphs greedy math | Statement | D | Codeforces Round 432 (Div. 1, based on IndiaHacks Final Round 2017) {850} | PROGRAMMING | Codeforces Round #432 editorial | 2700 | |
| 9825 | Maximum splitting | dp greedy math number theory | Statement | C | Technocup 2018 - Elimination Round 2 {870} | PROGRAMMING | Editorial Codeforces Round 440 Div.1+Div.2 (and Technocup 2018 — Elimination Round 2) | 1300 | |
| 14893 | Pride | brute force dp greedy math number theory | Statement | A | Codeforces Round 446 (Div. 1) {891} | PROGRAMMING | Codeforces Round #446 Editorial | 1600 | |
| 3685 | The Monster | dp greedy implementation math | Statement | A | Codeforces Round 459 (Div. 1) {917} | PROGRAMMING | Codeforces Round #459 Editorial | 1900 | |
| 4464 | Cashback | data structures dp greedy math | Statement | E | Codeforces Round 466 (Div. 2) {940} | PROGRAMMING | [Editorial] Codeforces Round #466 (Div. 2) | 2000 | |
| 2233 | Kuro and GCD and XOR and SUM | binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees | Statement | D | Codeforces Round 482 (Div. 2) {979} | PROGRAMMING | 1750.0 | Codeforces Round #482 (Div. 2) Editorial | 2200 |
| 3165 | Roman Digits | brute force combinatorics dp greedy math | Statement | B | Codeforces Round 493 (Div. 1) {997} | PROGRAMMING | 60357 | 2000 | |
| 18631 | Creating the Contest | dp greedy math | Statement | B | Codeforces Round 506 (Div. 3) {1029} | PROGRAMMING | Codeforces Round #506 (Div. 3) Editorial | 1200 | |
| 7986 | Shashlik Cooking | dp greedy math | Statement | B | Codeforces Round 507 (Div. 2, based on Olympiad of Metropolises) {1040} | PROGRAMMING | Codeforces Round #507 (based on Olympiad of Metropolises) — Editorial | 1300 | |
| 9971 | Vasya and Multisets | brute force dp greedy implementation math | Statement | C | Educational Codeforces Round 51 (Rated for Div. 2) {1051} | PROGRAMMING | Educational Codeforces Round 51 Editorial | 1400 | |
| 610 | Computer Game | dp greedy math probabilities | Statement | D | Codeforces Round 518 (Div. 1) [Thanks, Mail.Ru!] {1067} | PROGRAMMING | Tutorial | 2800 | |
| 1637 | Ehab and a component choosing problem | dp greedy math trees | Statement | E | Codeforces Round 525 (Div. 2) {1088} | PROGRAMMING | Codeforces round #525 editorial | 2400 | |
| 18413 | Sasha and His Trip | dp greedy math | Statement | A | Codeforces Round 539 (Div. 2) {1113} | PROGRAMMING | Codeforces Round #539 Editorial | 900 | |
| 13274 | Minimum Triangulation | dp greedy math | Statement | D | Educational Codeforces Round 62 (Rated for Div. 2) {1140} | PROGRAMMING | Educational Codeforces Round 62 Editorial | 1200 | |
| 5618 | Serval and Rooted Tree | binary search dfs and similar dp greedy trees | Statement | D | Codeforces Round 551 (Div. 2) {1153} | PROGRAMMING | Editorial | 1800 | |
| 5837 | Yet Another Subarray Problem | dp greedy math | Statement | D | Educational Codeforces Round 69 (Rated for Div. 2) {1197} | PROGRAMMING | E | 1900 | |
| 2793 | You Are Given a WASD-string... | brute force data structures dp greedy implementation math strings | Statement | C | Educational Codeforces Round 70 (Rated for Div. 2) {1202} | PROGRAMMING | 68972 | 2100 | |
| 7878 | Standard Free2play | dp greedy math | Statement | C | Educational Codeforces Round 74 (Rated for Div. 2) {1238} | PROGRAMMING | Educational Codeforces Round 74 Editorial | 1600 | |
| 15477 | Sweets Eating | dp greedy math sortings | Statement | C | Codeforces Round 600 (Div. 2) {1253} | PROGRAMMING | Editorial | 1500 | |
| 6523 | Domino for Young | dp greedy math | Statement | B | Codeforces Round 609 (Div. 1) {1268} | PROGRAMMING | Codeforces Round #609 — Editorial | 2000 | |
| 1273 | Miss Punyverse | dp greedy trees | Statement | D | Codeforces Round 607 (Div. 1) {1280} | PROGRAMMING | Codeforces Round #607 Editorial | 2700 | |
| 1025 | Chaotic V. | dp graphs greedy math number theory trees | Statement | D | Codeforces Round 614 (Div. 1) {1292} | PROGRAMMING | 1750.0 | Codeforces Round #614 Editorial | 2700 |
| 1422 | Cow and Treats | binary search combinatorics dp greedy implementation math | Statement | E | Codeforces Round 621 (Div. 1 + Div. 2) {1307} | PROGRAMMING | 2500.0 | Codeforces Round #621 (Div. 1 + Div. 2) Editorial | 2400 |
| 9274 | TediousLee | dp graphs greedy math matrices trees | Statement | D | Codeforces Round 652 (Div. 2) {1369} | PROGRAMMING | 2000.0 | Codeforces Round #652 (Div. 2) Editorial | 1900 |
| 19480 | Pluses and Minuses | binary search dp greedy implementation math | Statement | C | Educational Codeforces Round 90 (Rated for Div. 2) {1373} | PROGRAMMING | Educational Codeforces Round 90 Editorial | ||
| 2985 | Sum of Digits | brute force constructive algorithms dp greedy math number theory | Statement | E | Educational Codeforces Round 90 (Rated for Div. 2) {1373} | PROGRAMMING | Educational Codeforces Round 90 Editorial | ||
| 5553 | GameGame | bitmasks constructive algorithms dp games greedy math | Statement | B | Codeforces Round 659 (Div. 1) {1383} | PROGRAMMING | 1000.0 | Codeforces Round #659 Editorial | |
| 10471 | Uncle Bogdan and Country Happiness | dfs and similar dp greedy math trees | Statement | C | Codeforces Round 660 (Div. 2) {1388} | PROGRAMMING | 1500.0 | Codeforces Round #660 Editorial | 1800 |
| 20903 | Array Walk | dp greedy math | Statement | B | Educational Codeforces Round 92 (Rated for Div. 2) {1389} | PROGRAMMING | 80809 | ||
| 9981 | Omkar and Bed Wars | constructive algorithms dp greedy math strings | Statement | D | Codeforces Global Round 10 {1392} | PROGRAMMING | 1500.0 | Codeforces Global Round 10 — Editorial | |
| 36839 | Unique Number | dp greedy math | Statement | C | Codeforces Round 690 (Div. 3) {1462} | PROGRAMMING | Codeforces Round #690 (Div. 3) Editorial | ||
| 649 | Finding satisfactory solutions | dp graphs greedy math | Statement | H | Good Bye 2020 {1466} | PROGRAMMING | 3500.0 | Good Bye 2020 Editorial | |
| 7516 | Painting the Array I | constructive algorithms data structures dp greedy implementation | Statement | B1 | Codeforces Round 700 (Div. 1) {1479} | PROGRAMMING | 750.0 | Editorial of Codeforces Round #700 | |
| 4503 | Painting the Array II | data structures dp greedy implementation | Statement | B2 | Codeforces Round 700 (Div. 1) {1479} | PROGRAMMING | 750.0 | Editorial of Codeforces Round #700 | |
| 9167 | Square-free division (easy version) | data structures dp greedy math number theory | Statement | E1 | Codeforces Round 708 (Div. 2) {1497} | PROGRAMMING | 1500.0 | Codeforces Round #708 Editorial | 1700 |
| 1949 | Square-free division (hard version) | data structures dp greedy hashing math number theory | Statement | E2 | Codeforces Round 708 (Div. 2) {1497} | PROGRAMMING | 1500.0 | Codeforces Round #708 Editorial | 2500 |
| 29679 | Arranging The Sheep | dp greedy math | Statement | E | Codeforces Round 719 (Div. 3) {1520} | PROGRAMMING | Editorial | ||
| 4278 | Pchelyonok and Segments | binary search data structures dp greedy math | Statement | E | Codeforces Round 750 (Div. 2) {1582} | PROGRAMMING | 2500.0 | Codeforces Round #750 (Div.2) Editorial | |
| 42806 | Make it Divisible by 25 | dp greedy math math | Statement | B | Codeforces Round 748 (Div. 3) {1593} | PROGRAMMING | Editorial for Codeforces Round #748 (Div.3) | ||
| 2304 | Extreme Extension | dp greedy math number theory | Statement | C | Codeforces Round 752 (Div. 1) {1603} | PROGRAMMING | 1750.0 | Editorial of Codeforces Round #752 | 2300 |
| 1745 | Purple Crayon | dp games greedy math trees | Statement | E | Codeforces Global Round 18 {1615} | PROGRAMMING | 2750.0 | Global Round 18 Editorial | |
| 5661 | Keep the Average High | dp greedy math | Statement | D | Good Bye 2021: 2022 is NEAR {1616} | PROGRAMMING | 2000.0 | Good Bye 2021 -- Editorial | 2000 |
| 21055 | Array and Operations | dp greedy math | Statement | D | Codeforces Round 760 (Div. 3) {1618} | PROGRAMMING | Codeforces Round #760 (Div. 3) Editorial | ||
| 10328 | MEX and Increments | constructive algorithms data structures dp greedy math sortings | Statement | E | Codeforces Round 762 (Div. 3) {1619} | PROGRAMMING | Tutorial | ||
| 7318 | BA-String | bitmasks brute force dp greedy implementation math shortest paths | Statement | C | Educational Codeforces Round 119 (Rated for Div. 2) {1620} | PROGRAMMING | 98061 | ||
| 5419 | New Year Concert | binary search data structures dp greedy math number theory two pointers | Statement | D | Codeforces Round 769 (Div. 2) {1632} | PROGRAMMING | 2000.0 | Editorial of Codeforces Round #769 | |
| 15502 | MEX and Array | brute force dp greedy math | Statement | B | Codeforces Global Round 19 {1637} | PROGRAMMING | 1000.0 | Tutorial | |
| 15749 | Line Empire | dp greedy implementation math | Statement | C | Codeforces Round 782 (Div. 2) {1659} | PROGRAMMING | 1500.0 | Codeforces Round #782 (Div. 2) Editorial | |
| 214 | Maximum Product? | brute force combinatorics dp greedy math two pointers | Statement | H | Codeforces Global Round 21 {1696} | PROGRAMMING | 4000.0 | Editorial of Codeforces Global Round 21 | |
| 7124 | River Locks | binary search dp greedy math | Statement | D | Codeforces Round 802 (Div. 2) {1700} | PROGRAMMING | 1750.0 | 103978 | 1900 |
| 23734 | Optimal Path | dp greedy math | Statement | A | Codeforces Round 802 (Div. 2) {1700} | PROGRAMMING | 500.0 | 103978 | 800 |
| 12948 | Good Key, Bad Key | bitmasks brute force dp greedy math | Statement | G | Codeforces Round 806 (Div. 4) {1703} | PROGRAMMING | 104786 | ||
| 17618 | Making Towers | dp greedy math | Statement | B | Codeforces Round 809 (Div. 2) {1706} | PROGRAMMING | 1000.0 | Codeforces Round #809 Editorial | |
| 711 | Multiset of Strings | dp fft flows graphs greedy math | Statement | F | Educational Codeforces Round 132 (Rated for Div. 2) {1709} | PROGRAMMING | 105164 | ||
| 5968 | Burenka and Traditions (hard version) | data structures dp greedy math two pointers | Statement | A2 | Codeforces Round 814 (Div. 1) {1718} | PROGRAMMING | 500.0 | Codeforces Round #814 (Div. 1, Div. 2) Editorial | |
| 6471 | Burenka and Traditions (easy version) | dp greedy math | Statement | A1 | Codeforces Round 814 (Div. 1) {1718} | PROGRAMMING | 500.0 | Codeforces Round #814 (Div. 1, Div. 2) Editorial | |
| 3548 | Graph Cost | dp greedy math number theory | Statement | E | Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} | PROGRAMMING | 2000.0 | Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial | |
| 15138 | Zero-One (Easy Version) | dp greedy math | Statement | D1 | Codeforces Round 821 (Div. 2) {1733} | PROGRAMMING | 1500.0 | Codeforces Round #821 (Div. 2) Editorial | |
| 12986 | Even Number Addicts | dp games greedy math | Statement | C | Codeforces Global Round 22 {1738} | PROGRAMMING | 1500.0 | Editorial of Codeforces Global Round <strong>22</strong> | |
| 1697 | Bracket Cost | binary search data structures divide and conquer dp greedy strings | Statement | E | CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!) {1750} | PROGRAMMING | 2250.0 | CodeTON Round 3 (Div. 1 + Div. 2) Editorial | |
| 6836 | Torus Path | dp greedy math | Statement | K | 2022-2023 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Preferably Teams) {1765} | PROGRAMMING | 109642 | 1500 | |
| 10931 | Lucky Chains | brute force dp greedy math number theory | Statement | D | Educational Codeforces Round 139 (Rated for Div. 2) {1766} | PROGRAMMING | 110066 | ||
| 913 | Laboratory on Pluto | brute force combinatorics dp fft greedy math | Statement | F | Codeforces Round 843 (Div. 2) {1775} | PROGRAMMING | 3000.0 | Codeforces Round #843 (Div. 2) Editorial | |
| 8431 | Remove the Bracket | dp greedy math | Statement | C | TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) {1787} | PROGRAMMING | 1750.0 | TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) Editorial | |
| 1425 | City Union | constructive algorithms dp geometry greedy implementation math | Statement | E | Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} | PROGRAMMING | 2250.0 | Codeforces Round #854 Editorial | |
| 29251 | Subsequence Addition (Hard Version) | dp greedy implementation math sortings | Statement | G2 | Codeforces Round 859 (Div. 4) {1807} | PROGRAMMING | 114143 | ||
| 2757 | Rearrange Brackets | dp greedy math sortings | Statement | E | Educational Codeforces Round 147 (Rated for Div. 2) {1821} | PROGRAMMING | 115296 | ||
| 9218 | Ranom Numbers | brute force dp greedy math strings | Statement | C | Educational Codeforces Round 150 (Rated for Div. 2) {1841} | PROGRAMMING | 117262 | ||
| 6455 | Omsk Metro (simple version) | data structures dfs and similar dp greedy math trees | Statement | F1 | Codeforces Round 881 (Div. 3) {1843} | PROGRAMMING | Codeforces Round #881 (Div. 3) Editorial | ||
| 9155 | Rating System | brute force data structures dp greedy implementation math | Statement | D | Educational Codeforces Round 151 (Rated for Div. 2) {1845} | PROGRAMMING | 117791 | ||
| 2139 | Ina of the Mountain | data structures dp greedy math | Statement | C | Codeforces Round 887 (Div. 1) {1852} | PROGRAMMING | 1250.0 | Codeforces Round 887 (Div 1, Div 2) Tutorial | |
| 18839 | Another Permutation Problem | brute force dp greedy math | Statement | C | Codeforces Round 892 (Div. 2) {1859} | PROGRAMMING | 1250.0 | Video solutions from Geothermal. | |
| 8101 | Sorting By Multiplication | dp greedy math | Statement | D | Educational Codeforces Round 154 (Rated for Div. 2) {1861} | PROGRAMMING | Educational Codeforces Round 154 Editorial | ||
| 2802 | Candy Party (Hard Version) | bitmasks constructive algorithms dp graphs greedy implementation math | Statement | B2 | Codeforces Round 896 (Div. 1) {1868} | PROGRAMMING | 750.0 | Codeforces Round 896 (Div. 1, Div. 2) Editorial | |
| 2228 | Jellyfish and EVA | dp graphs greedy math probabilities | Statement | C | Codeforces Round 901 (Div. 1) {1874} | PROGRAMMING | 1500.0 | Codeforces Round 901 (Div. 1, Div. 2) Editorial | |
| 2577 | Geo Game | constructive algorithms dp games greedy interactive math | Statement | E | Codeforces Round 912 (Div. 2) {1903} | PROGRAMMING | 2250.0 | Codeforces Round #912 (Div. 2) Editorial | |
| 17080 | XOR-distance | bitmasks dp greedy implementation math | Statement | C | Codeforces Round 922 (Div. 2) {1918} | PROGRAMMING | 1250.0 | Codeforces Round #922 (Div. 2) Editorial | |
| 2045 | Paint Charges | data structures dp greedy math | Statement | G | Codeforces Round 923 (Div. 3) {1927} | PROGRAMMING | 125597 | ||
| 2221 | Modular Sequence | constructive algorithms dp greedy implementation math number theory | Statement | E | Codeforces Round 924 (Div. 2) {1928} | PROGRAMMING | 2250.0 | Codeforces Round 924 Editorial | |
| 17527 | Sasha and the Casino | binary search brute force dp games greedy math | Statement | C | Codeforces Round 926 (Div. 2) {1929} | PROGRAMMING | 1500.0 | Codeforces Round #926 (Div. 2) Editorial. | |
| 4918 | Sum over all Substrings (Easy Version) | brute force dp greedy strings | Statement | D1 | think-cell Round 1 {1930} | PROGRAMMING | 1250.0 | think-cell Round 1 Editorial | |
| 3119 | Sum over all Substrings (Hard Version) | dp greedy strings | Statement | D2 | think-cell Round 1 {1930} | PROGRAMMING | 1000.0 | think-cell Round 1 Editorial | |
| 22339 | Yet Another Coin Problem | brute force dp greedy math | Statement | B | Codeforces Round 931 (Div. 2) {1934} | PROGRAMMING | 1000.0 | Tutorial | |
| 8300 | Colored Balls | combinatorics dp greedy math sortings | Statement | D | Educational Codeforces Round 164 (Rated for Div. 2) {1954} | PROGRAMMING | Educational Codeforces Round 164 Editorial | ||
| 8849 | Unfair Game | dp games greedy math | Statement | F | Codeforces Round 938 (Div. 3) {1955} | PROGRAMMING | 128243 | ||
| 8146 | Nikita and LCM | brute force data structures dp greedy math number theory sortings | Statement | C | Codeforces Round 948 (Div. 2) {1977} | PROGRAMMING | 1750.0 | 129858 | 1900 |
| 27272 | Split the Multiset | brute force dp greedy math | Statement | A | Codeforces Round 958 (Div. 2) {1988} | PROGRAMMING | 500.0 | Editorial of Codeforces Round 958 (Div. 2) | |
| 7219 | Smithing Skill | brute force dp greedy math sortings two pointers | Statement | D | Educational Codeforces Round 167 (Rated for Div. 2) {1989} | PROGRAMMING | Educational Codeforces Round 167 Editorial | ||
| 2304 | Eliminating Balls With Merging (Easy Version) | binary search brute force data structures divide and conquer dp greedy math | Statement | E1 | Codeforces Round 965 (Div. 2) {1998} | PROGRAMMING | 1750.0 | Video Tutorial | |
| 7056 | Color Rows and Columns | dp greedy implementation math | Statement | F | Codeforces Round 966 (Div. 3) {2000} | PROGRAMMING | 132689 | ||
| 1436 | Make a Palindrome | brute force data structures dp greedy math | Statement | F | Educational Codeforces Round 169 (Rated for Div. 2) {2004} | PROGRAMMING | Educational Codeforces Round 169 Editorial | ||
| 4364 | Prefix GCD | brute force dp greedy math number theory | Statement | E | Codeforces Round 973 (Div. 2) {2013} | PROGRAMMING | 2500.0 | 134298 | |
| 5307 | Speedbreaker | binary search dp greedy implementation math two pointers | Statement | B | Codeforces Round 975 (Div. 1) {2018} | PROGRAMMING | 750.0 | Editorial of Codeforces Round 975 (Div. 1, Div. 2) | |
| 343 | Speedbreaker Counting (Easy Version) | combinatorics dp games greedy implementation math | Statement | F1 | Codeforces Round 975 (Div. 1) {2018} | PROGRAMMING | 1500.0 | Editorial of Codeforces Round 975 (Div. 1, Div. 2) | |
| 300 | Speedbreaker Counting (Medium Version) | dp greedy math | Statement | F2 | Codeforces Round 975 (Div. 1) {2018} | PROGRAMMING | 1500.0 | Editorial of Codeforces Round 975 (Div. 1, Div. 2) | |
| 338 | Speedbreaker Counting (Hard Version) | dp greedy math | Statement | F3 | Codeforces Round 975 (Div. 1) {2018} | PROGRAMMING | 1500.0 | Editorial of Codeforces Round 975 (Div. 1, Div. 2) | |
| 1959 | Digital Village (Easy Version) | brute force data structures dp dsu graphs greedy implementation math shortest paths trees | Statement | E1 | Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} | PROGRAMMING | 1750.0 | Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial | |
| 709 | Digital Village (Extreme Version) | data structures dp graphs greedy math | Statement | E3 | Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} | PROGRAMMING | 1000.0 | Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial | |
| 973 | Boss, Thirsty | data structures dp greedy math | Statement | D | Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} | PROGRAMMING | 2500.0 | Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial | |
| 2397 | Card Game | combinatorics dp fft greedy math | Statement | E | Educational Codeforces Round 170 (Rated for Div. 2) {2025} | PROGRAMMING | Educational Codeforces Round 170 Editorial | ||
| 1975 | Alice's Adventures in the Rabbit Hole | constructive algorithms dfs and similar dp greedy math probabilities trees | Statement | E | Codeforces Round 986 (Div. 2) {2028} | PROGRAMMING | 2000.0 | Codeforces Round 986 (Div. 2) Editorial | |
| 21202 | Penchick and Modern Monument | dp greedy math two pointers | Statement | A | Codeforces Round 987 (Div. 2) {2031} | PROGRAMMING | 500.0 | Codeforces Round 987 (Div. 2) Editorial | |
| 18498 | Kousuke's Assignment | dp dsu greedy math | Statement | D | Codeforces Round 981 (Div. 3) {2033} | PROGRAMMING | 135520 | ||
| 5900 | Yet Another Real Number Problem | binary search brute force data structures dp greedy implementation math two pointers | Statement | D | Codeforces Global Round 27 {2035} | PROGRAMMING | 1500.0 | Codeforces Global Round 27 Editorial | |
| 8317 | Bridge Renovation | brute force dp greedy math | Statement | L | 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} | PROGRAMMING | 1400 | ||
| 1806 | Grid Walk | dp greedy math number theory | Statement | K | 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} | PROGRAMMING | 2100 | ||
| 11466 | Sums on Segments | binary search brute force data structures dp greedy math | Statement | C | Educational Codeforces Round 173 (Rated for Div. 2) {2043} | PROGRAMMING | Educational Codeforces Round 173 Editorial | ||
| 109 | Affectionate Arrays (Hard Version) | data structures dp graphs greedy math shortest paths two pointers | Statement | I2 | Good Bye 2024: 2025 is NEAR {2053} | PROGRAMMING | 2000.0 | Good Bye 2024: 2025 is NEAR Editorial | |
| 2297 | Kevin and Binary String (Easy Version) | binary search brute force data structures dp greedy implementation strings two pointers | Statement | F1 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} | PROGRAMMING | 2000.0 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial | |
| 630 | Traveling Salescat | dp geometry greedy math sortings | Statement | F | Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2) {2062} | PROGRAMMING | 3500.0 | Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2) Editorial | |
| 5129 | Game With Triangles | binary search data structures dp greedy math ternary search two pointers | Statement | D | Codeforces Round 1000 (Div. 2) {2063} | PROGRAMMING | 2250.0 | Codeforces Round 1000 (Div. 2) — Editorial | |
| 12990 | Devyatkino | brute force dp greedy math | Statement | C | Codeforces Round 1004 (Div. 2) {2067} | PROGRAMMING | 1250.0 | ||
| 5968 | Equalization | bitmasks brute force dp greedy math | Statement | D | Educational Codeforces Round 176 (Rated for Div. 2) {2075} | PROGRAMMING | Educational Codeforces Round 176 Editorial | ||
| 6682 | Scammy Game Ad | dp greedy math | Statement | D | Codeforces Round 1008 (Div. 2) {2078} | PROGRAMMING | 1750.0 | Codeforces Round 1008 (Div. 1, Div. 2) Editorial | |
| 19329 | Large Array and Segments | binary search brute force dp greedy math | Statement | B | Educational Codeforces Round 177 (Rated for Div. 2) {2086} | PROGRAMMING | Educational Codeforces Round 177 Editorial | ||
| 1557 | Gleb and Boating | brute force constructive algorithms data structures dp graphs greedy math shortest paths | Statement | G | Codeforces Round 1013 (Div. 3) {2091} | PROGRAMMING | Codeforces Round 1013 (Div. 3) Editorial | ||
| 4525 | Goblin | dp dsu greedy math | Statement | F | Codeforces Round 1020 (Div. 3) {2106} | PROGRAMMING | Codeforces Round 1020 (Div. 3) Editorial | ||
| 15976 | Gellyfish and Flaming Peony | brute force constructive algorithms dp greedy math number theory shortest paths | Statement | A | Codeforces Round 1028 (Div. 1) {2115} | PROGRAMMING | 500.0 | Codeforces Round 1028 (Div.1, Div.2) Editorial | |
| 1234 | Gellyfish and Eternal Violet | combinatorics dp greedy math meet-in-the-middle probabilities | Statement | C | Codeforces Round 1028 (Div. 1) {2115} | PROGRAMMING | 1750.0 | Codeforces Round 1028 (Div.1, Div.2) Editorial | |
| 1676 | Greedy Grid Counting | dp greedy math | Statement | E | Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2) {2122} | PROGRAMMING | 2500.0 | Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2) Editorial | |
| 7786 | Chicken Jockey | binary search brute force dp greedy math | Statement | D | Codeforces Round 1044 (Div. 2) {2133} | PROGRAMMING | 2250.0 | Codeforces Round 1044 (Div. 2) Editorial | |
| 1445 | Inverse Minimum Partition (Easy Version) | binary search data structures dp greedy math two pointers | Statement | D1 | Codeforces Round 1058 (Div. 1) {2159} | PROGRAMMING | 1500.0 | Codeforces Round 1058 Editorial | |
| 6691 | XOR-factorization | bitmasks constructive algorithms dp greedy number theory | Statement | C | Codeforces Global Round 31 (Div. 1 + Div. 2) {2180} | PROGRAMMING | 1500.0 | Codeforces Global Round 31 | |
| 9392 | Christmas Tree Decoration | combinatorics dp greedy math | Statement | D | Educational Codeforces Round 186 (Rated for Div. 2) {2182} | PROGRAMMING | Educational Codeforces Round 186 Editorial | ||
| 2052 | Little String (Hard Version) | binary search combinatorics dp greedy math number theory | Statement | D2 | Codeforces Round 1075 (Div. 2) {2189} | PROGRAMMING | 750.0 | Codeforces Round 1075 (Div. 2) Editorial | |
| 882 | Majority Wins? | dp greedy math strings | Statement | E | Codeforces Round 1075 (Div. 2) {2189} | PROGRAMMING | 2500.0 | Codeforces Round 1075 (Div. 2) Editorial | |
| 237 | Fuzzy Concatenation (Hard version) | binary search data structures dp greedy string suffix structures | Statement | E2 | Codeforces Round 1079 (Div. 1) {2196} | PROGRAMMING | 1000.0 | Tutorial | |
| 1068 | Double Bracket Sequence | data structures dp greedy sortings | Statement | D | Codeforces Round 1079 (Div. 1) {2196} | PROGRAMMING | 2250.0 | Tutorial | |
| 16098 | Beautiful Numbers | dp greedy math | Statement | B | Educational Codeforces Round 187 (Rated for Div. 2) {2203} | PROGRAMMING | Educational Codeforces Round 187 Editorial | ||
| 12485 | Stamina and Tasks | dp greedy math | Statement | C | Codeforces Round 1086 (Div. 2) {2208} | PROGRAMMING | 1250.0 | Tutorial | |
| 2368 | A Simple GCD Problem (Hard Version) | dp greedy number theory | Statement | C2 | Codeforces Round 1089 (Div. 2) {2210} | PROGRAMMING | 1000.0 | Codeforces Round 1089 (Div. 2) Editorial | |
| 3630 | Interval Mod | constructive algorithms dp greedy math | Statement | A | Codeforces Round 1092 (Unrated, Div. 1, Based on THUPC 2026 — Finals) {2215} | PROGRAMMING | 750.0 | 152930 | |
| 872 | Interval Game | bitmasks combinatorics dp games greedy math probabilities | Statement | F | Codeforces Round 1091 (Div. 2) and CodeCraft 26 {2217} | PROGRAMMING | 2750.0 | Tutorial | |
| 4304 | It Just Keeps Going Sideways | data structures dp greedy math | Statement | F | Codeforces Round 1096 (Div. 3) {2227} | PROGRAMMING | Codeforces Round 1096 (Div. 3) — Editorial | ||
| 14605 | An Alternative Way | dp greedy math | Statement | D | Codeforces Round 1107 (Div. 3) {2241} | PROGRAMMING | |||
| 1202 | Product of Closures | bitmasks brute force constructive algorithms dp greedy implementation math | Statement | E | Educational Codeforces Round 192 (Rated for Div. 2) {2242} | PROGRAMMING | |||
| 10130 | Yaroslav and Productivity | constructive algorithms dp greedy math number theory | Statement | D | Codeforces Round 1109 (Div. 3) {2244} | PROGRAMMING |