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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 3437 | Exposition | binary search data structures ds trees two pointers | Statement | E | Codeforces Beta Round 6 (Div. 2 Only) {6} | PROGRAMMING | 1900 | ||
| 589 | Lucky Tickets | binary search data structures sortings two pointers | Statement | C | Codeforces Beta Round 64 {70} | PROGRAMMING | Analysis Codeforces Beta Round #64 | 2200 | |
| 339 | Archer's Shot | binary search geometry math two pointers | Statement | D | Codeforces Beta Round 70 (Div. 2) {78} | PROGRAMMING | Solutions for Codeforces Beta Round #70 (Div. 2) | 2400 | |
| 294 | Lucky Segments | binary search implementation two pointers | Statement | D | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | 2400 | ||
| 668 | Present to Mom | binary search two pointers | Statement | F | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | 2200 | ||
| 5008 | Dress'em in Vests! | binary search brute force greedy two pointers | Statement | A | VK Cup 2012 Round 1 {161} | PROGRAMMING | 1300 | ||
| 12815 | Another Problem on Strings | binary search brute force dp math strings two pointers | Statement | C | Codeforces Round 112 (Div. 2) {165} | PROGRAMMING | Codeforces Round #112 (Div. 2) Tutorial | 1600 | |
| 1904 | Cubes | binary search dp two pointers | Statement | E | Codeforces Round 116 (Div. 2, ACM-ICPC Rules) {180} | PROGRAMMING | 1700 | ||
| 1370 | Spider's Web | binary search sortings two pointers | Statement | D | Codeforces Round 133 (Div. 2) {216} | PROGRAMMING | 1800 | ||
| 2191 | Olympiad | binary search greedy sortings two pointers | Statement | D | Codeforces Round 137 (Div. 2) {222} | PROGRAMMING | 1800 | ||
| 8880 | To Add or Not to Add | binary search sortings two pointers | Statement | C | Codeforces Round 143 (Div. 2) {231} | PROGRAMMING | 1700 | ||
| 6044 | Primes on Interval | binary search number theory two pointers | Statement | C | Codeforces Round 147 (Div. 2) {237} | PROGRAMMING | Codeforces Round #147 (Div. 2) Разбор Задач | 1600 | |
| 18691 | Points on Line | binary search combinatorics two pointers | Statement | A | Codeforces Round 153 (Div. 1) {251} | PROGRAMMING | Editorial of Codeforces Round #153 | 1400 | |
| 11124 | Physics Practical | binary search dp sortings two pointers | Statement | B | Codeforces Round 154 (Div. 2) {253} | PROGRAMMING | 1400 | ||
| 58439 | Books | binary search brute force implementation two pointers | Statement | B | Codeforces Round 171 (Div. 2) {279} | PROGRAMMING | Codeforces Round #171 (Div. 2) Разбор Задач | 1400 | |
| 8696 | Eugeny and Play List | binary search implementation two pointers | Statement | B | Codeforces Round 182 (Div. 2) {302} | PROGRAMMING | Codeforces Round #182 tutorial | 1200 | |
| 502 | Morning run | binary search math two pointers | Statement | A | Croc Champ 2013 - Finals (online version, Div. 1) {309} | PROGRAMMING | 2000 | ||
| 540 | Sereja and Straight Lines | binary search data structures geometry sortings two pointers | Statement | D | Codeforces Round 187 (Div. 1) {314} | PROGRAMMING | Codeforces Round #187 tutorial | 2400 | |
| 3051 | Read Time | binary search greedy two pointers | Statement | C | Codeforces Round 200 (Div. 1) {343} | PROGRAMMING | 2100 | ||
| 5284 | Pair of Numbers | binary search brute force data structures math two pointers | Statement | D | Codeforces Round 209 (Div. 2) {359} | PROGRAMMING | Editorial Codeforces Round #209 (Div. 2) | 2100 | |
| 1588 | Dima and Trap Graph | binary search data structures dfs and similar ds shortest paths two pointers | Statement | D | Codeforces Round 214 (Div. 2) {366} | PROGRAMMING | 2400 | ||
| 13685 | Counting Kangaroos is Fun | binary search greedy sortings two pointers | Statement | A | Codeforces Round 219 (Div. 1) {372} | PROGRAMMING | 9944 | 1700 | |
| 1012 | Choosing Subtree is Fun | binary search data structures dfs and similar trees two pointers | Statement | D | Codeforces Round 219 (Div. 1) {372} | PROGRAMMING | 9944 | 2600 | |
| 728 | Volcanoes | binary search implementation sortings two pointers | Statement | B | Codeforces Round 225 (Div. 1) {383} | PROGRAMMING | 2200 | ||
| 703 | Mashmokh and Water Tanks | binary search data structures greedy trees two pointers | Statement | D | Codeforces Round 240 (Div. 1) {414} | PROGRAMMING | 2300 | ||
| 6306 | Devu and his Brother | binary search sortings ternary search two pointers | Statement | D | Codeforces Round 251 (Div. 2) {439} | PROGRAMMING | Codeforces Round #251 Editorial | 1900 | |
| 799 | DZY Loves Strings | binary search hashing strings two pointers | Statement | D | Codeforces Round 254 (Div. 1) {444} | PROGRAMMING | 2400 | ||
| 37830 | Number of Ways | binary search brute force data structures dp two pointers | Statement | C | Codeforces Round 266 (Div. 2) {466} | PROGRAMMING | Editorial Codeforces Round #266 (Div. 2) | 1700 | |
| 7209 | Maximum Value | binary search math sortings two pointers | Statement | B | Codeforces Round 276 (Div. 1) {484} | PROGRAMMING | Codeforces Round #276 — Editorial | 2100 | |
| 3707 | Strip | binary search data structures dp two pointers | Statement | B | Codeforces Round 278 (Div. 1) {487} | PROGRAMMING | Tutorial | 2300 | |
| 7005 | Vasya and Basketball | binary search brute force data structures implementation sortings two pointers | Statement | C | Codeforces Round 281 (Div. 2) {493} | PROGRAMMING | Codeforces Round #281 (Div. 2) Editorial | 1700 | |
| 4708 | R2D2 and Droid Army | binary search data structures two pointers | Statement | D | Codeforces Round 291 (Div. 2) {514} | PROGRAMMING | Codeforces Round #291 (Div. 2) Editorial | 2100 | |
| 28272 | Kefa and Company | binary search sortings two pointers | Statement | B | Codeforces Round 321 (Div. 2) {580} | PROGRAMMING | Codeforces Round #321 Editorial | 1500 | |
| 228 | BCPC | binary search geometry two pointers | Statement | E | Codeforces Round 328 (Div. 2) {592} | PROGRAMMING | 2800 | ||
| 32498 | Queries about less or equal elements | binary search data structures sortings two pointers | Statement | B | Educational Codeforces Round 2 {600} | PROGRAMMING | Editorial | 1300 | |
| 2849 | Gadgets for dollars and pounds | binary search greedy two pointers | Statement | D | Educational Codeforces Round 3 {609} | PROGRAMMING | 2000 | ||
| 2262 | Skills | binary search brute force dp greedy sortings two pointers | Statement | B | Codeforces Round 339 (Div. 1) {613} | PROGRAMMING | Tutorial | 2200 | |
| 10528 | Longest k-Good Segment | binary search data structures two pointers | Statement | D | Educational Codeforces Round 5 {616} | PROGRAMMING | Editorial of Educational Codeforces Round 5 | 1700 | |
| 1803 | Professor GukiZ and Two Arrays | binary search two pointers | Statement | D | Educational Codeforces Round 6 {620} | PROGRAMMING | 2200 | ||
| 599 | Startup Funding | binary search constructive algorithms data structures probabilities two pointers | Statement | E | Manthan, Codefest 16 {633} | PROGRAMMING | 2400 | ||
| 3601 | Enduring Exodus | binary search two pointers | Statement | C | CROC 2016 - Elimination Round {645} | PROGRAMMING | 1600 | ||
| 3386 | Image Preview | binary search brute force dp two pointers | Statement | B | Codeforces Round 345 (Div. 1) {650} | PROGRAMMING | 1900 | ||
| 9826 | Hard Process | binary search dp two pointers | Statement | C | Educational Codeforces Round 11 {660} | PROGRAMMING | Editorial of Educational Codeforces Round 11 | 1600 | |
| 19677 | Vasya and String | binary search dp strings two pointers | Statement | C | Codeforces Round 354 (Div. 2) {676} | PROGRAMMING | Editorial | 1500 | |
| 132 | ...Dary! | binary search geometry two pointers | Statement | F | Codeforces Round 362 (Div. 1) {696} | PROGRAMMING | 3200 | ||
| 16601 | They Are Everywhere | binary search strings two pointers | Statement | C | Codeforces Round 364 (Div. 2) {701} | PROGRAMMING | Codeforces Round #364 problem analysis | 1500 | |
| 17491 | Cellular Network | binary search implementation two pointers | Statement | C | Educational Codeforces Round 15 {702} | PROGRAMMING | 46324 | 1500 | |
| 5446 | Anton and Making Potions | binary search dp greedy two pointers | Statement | C | Codeforces Round 379 (Div. 2) {734} | PROGRAMMING | 1600 | ||
| 1518 | Santa Claus and Tangerines | binary search data structures greedy two pointers | Statement | E | Technocup 2017 - Elimination Round 3 {748} | PROGRAMMING | 2000 | ||
| 2648 | Two strings | binary search hashing strings two pointers | Statement | C | Educational Codeforces Round 17 {762} | PROGRAMMING | Tutorial | 2100 | |
| 2285 | Cartons of milk | binary search data structures greedy sortings two pointers | Statement | D | Codeforces Round 398 (Div. 2) {767} | PROGRAMMING | 2000 | ||
| 6532 | Alyona and Spreadsheet | binary search data structures dp greedy implementation two pointers | Statement | C | Codeforces Round 401 (Div. 2) {777} | PROGRAMMING | 1600 | ||
| 128 | Intranet of Buses | binary search geometry implementation two pointers | Statement | H | Технокубок 2017 - Финал (только для онсайт-финалистов) {780} | PROGRAMMING | 3000 | ||
| 2377 | Card Game Again | binary search data structures number theory two pointers | Statement | E | Educational Codeforces Round 24 {818} | PROGRAMMING | 52991 | 2000 | |
| 5412 | The Bakery | binary search data structures divide and conquer dp two pointers | Statement | B | Codeforces Round 426 (Div. 1) {833} | PROGRAMMING | 2200 | ||
| 8465 | K-Dominant Character | binary search implementation two pointers | Statement | C | Educational Codeforces Round 32 {888} | PROGRAMMING | Educational Codeforces Round 32 - Editorial | 1400 | |
| 3635 | XK Segments | binary search math sortings two pointers | Statement | B | Codeforces Round 448 (Div. 2) {895} | PROGRAMMING | Codeforces Round #448(Div.2) Editorial | 1700 | |
| 1200 | Bipartite Segments | binary search data structures dfs and similar ds graphs two pointers | Statement | C | Codeforces Round 453 (Div. 1) {901} | PROGRAMMING | 2500 | ||
| 1731 | Prime Gift | binary search dfs and similar math meet-in-the-middle number theory two pointers | Statement | E | Codeforces Round 456 (Div. 2) {912} | PROGRAMMING | Codeforces Round #456 (Div. 2) Editorial | 2600 | |
| 5416 | 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 | |
| 4692 | Convenient For Everybody | binary search two pointers | Statement | C | Codeforces Round 464 (Div. 2) {939} | PROGRAMMING | 1600 | ||
| 3204 | Maximize! | binary search greedy ternary search two pointers | Statement | E | Codeforces Round 464 (Div. 2) {939} | PROGRAMMING | Analysis of Codeforces Round #464 | 1900 | |
| 2229 | Castle Defense | binary search data structures greedy two pointers | Statement | G | Educational Codeforces Round 40 (Rated for Div. 2) {954} | PROGRAMMING | 2100 | ||
| 1312 | Lightsabers (medium) | binary search two pointers | Statement | F2 | Helvetic Coding Contest 2018 online mirror (teams allowed, unrated) {958} | PROGRAMMING | 1900 | ||
| 3178 | Single-use Stones | binary search flows greedy two pointers | Statement | D | Codeforces Round 476 (Div. 2) [Thanks, Telegram!] {965} | PROGRAMMING | Analysis of Codeforces Round #476 (Div. 2) [Thanks, Telegram!] | 1900 | |
| 26968 | Letters | binary search implementation two pointers | Statement | C | Codeforces Round 481 (Div. 3) {978} | PROGRAMMING | T | 1000 | |
| 3768 | Pencils and Boxes | binary search data structures dp greedy two pointers | Statement | E | Educational Codeforces Round 44 (Rated for Div. 2) {985} | PROGRAMMING | Educational Codeforces Round 44 Editorial | 2000 | |
| 523 | A Shade of Moonlight | binary search geometry math sortings two pointers | Statement | D | Codeforces Round 487 (Div. 2) {989} | PROGRAMMING | Codeforces Round #487 (Div. 2) Editorial | 2500 | |
| 22180 | Three Parts of the Array | binary search data structures two pointers | Statement | C | Codeforces Round 498 (Div. 3) {1006} | PROGRAMMING | 60672 | 1300 | |
| 504 | Intervals of Intervals | binary search data structures two pointers | Statement | D | Codeforces Round 511 (Div. 1) {1034} | PROGRAMMING | Codeforces Round #511 Editorial | 3500 | |
| 9662 | Coffee Break | binary search data structures greedy two pointers | Statement | C | Codeforces Round 509 (Div. 2) {1041} | PROGRAMMING | Codeforces Round #509 (Div. 2) Editorial | 1500 | |
| 6081 | Glider | binary search data structures two pointers | Statement | D | Codeforces Round 509 (Div. 2) {1041} | PROGRAMMING | Codeforces Round #509 (Div. 2) Editorial | 1700 | |
| 2979 | The Tower is Going Home | binary search two pointers | Statement | A | Lyft Level 5 Challenge 2018 - Final Round {1044} | PROGRAMMING | Lyft Level 5 Challenge 2018 — Final Round — Editorial | 1700 | |
| 4980 | Maximum Subrectangle | binary search implementation two pointers | Statement | C | Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) {1060} | PROGRAMMING | User editorial for Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) | 1600 | |
| 4998 | Vasya and Robot | binary search two pointers | Statement | C | Educational Codeforces Round 53 (Rated for Div. 2) {1073} | PROGRAMMING | 62742 | 1800 | |
| 7616 | Born This Way | binary search brute force two pointers | Statement | B | Codeforces Global Round 3 {1148} | PROGRAMMING | Codeforces Global Round 3 Editorial | 1700 | |
| 6258 | Match Points | binary search greedy sortings ternary search two pointers | Statement | C | Educational Codeforces Round 64 (Rated for Div. 2) {1156} | PROGRAMMING | 66827 | 2000 | |
| 7489 | The Party and Sweets | binary search constructive algorithms greedy implementation math sortings two pointers | Statement | A | Codeforces Round 559 (Div. 1) {1158} | PROGRAMMING | 66993 | 1500 | |
| 10145 | A Tale of Two Lands | binary search sortings two pointers | Statement | C | Codeforces Round 561 (Div. 2) {1166} | PROGRAMMING | Codeforces Round #561 (Div. 2) Editorial | 1600 | |
| 2735 | Range Deleting | binary search combinatorics data structures two pointers | Statement | E | Educational Codeforces Round 65 (Rated for Div. 2) {1167} | PROGRAMMING | 67058 | 2100 | |
| 2526 | Irrigation | binary search data structures implementation sortings trees two pointers | Statement | D | Codeforces Round 567 (Div. 2) {1181} | PROGRAMMING | Editorial of Codeforces Round #567 (based on All-Russian olympiad in the name of Keldysh) | 2100 | |
| 7644 | Remove the Substring (hard version) | binary search greedy implementation two pointers | Statement | D2 | Codeforces Round 579 (Div. 3) {1203} | PROGRAMMING | Codeforces Round #579 (Div. 3) Editorial | 1800 | |
| 10768 | Uniqueness | binary search brute force implementation two pointers | Statement | B | Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2) {1208} | PROGRAMMING | 69357 | 1500 | |
| 5512 | Minimizing Difference | binary search constructive algorithms greedy sortings ternary search two pointers | Statement | E | Codeforces Round 592 (Div. 2) {1244} | PROGRAMMING | Codeforces Round #592 (Div. 2) Tutorial | 2000 | |
| 7806 | Yet Another Monster Killing Problem | binary search data structures dp greedy sortings two pointers | Statement | D | Educational Codeforces Round 76 (Rated for Div. 2) {1257} | PROGRAMMING | Educational Codeforces Round 76 Editorial | 1700 | |
| 5854 | Irreducible Anagrams | binary search constructive algorithms data structures strings two pointers | Statement | B | Codeforces Round 616 (Div. 1) {1290} | PROGRAMMING | 1000.0 | Codeforces Round #616 Editorial | 1900 |
| 30176 | Pair of Topics | binary search data structures sortings two pointers | Statement | D | Codeforces Round 627 (Div. 3) {1324} | PROGRAMMING | Codeforces Round #627 (Div. 3) Editorial | ||
| 12824 | Eugene and an array | binary search data structures hashing implementation two pointers | Statement | C | Codeforces Round 632 (Div. 2) {1333} | PROGRAMMING | 1250.0 | Codeforces Round #632 (Div. 2) editorial | |
| 11140 | Three Blocks Palindrome (easy version) | binary search brute force data structures dp two pointers | Statement | E1 | Codeforces Round 634 (Div. 3) {1335} | PROGRAMMING | 75993 | 1700 | |
| 11654 | Xenia and Colorful Gems | binary search greedy math sortings two pointers | Statement | B | Codeforces Round 635 (Div. 1) {1336} | PROGRAMMING | 750.0 | Codeforces Round #635 Editorial | 1800 |
| 6190 | Multiple Testcases | binary search constructive algorithms data structures greedy sortings two pointers | Statement | D | Educational Codeforces Round 86 (Rated for Div. 2) {1342} | PROGRAMMING | 76633 | 1900 | |
| 32266 | Ternary String | binary search dp implementation two pointers | Statement | B | Educational Codeforces Round 87 (Rated for Div. 2) {1354} | PROGRAMMING | 77593 | 1200 | |
| 10974 | Count Triangles | binary search implementation math two pointers | Statement | C | Codeforces Round 643 (Div. 2) {1355} | PROGRAMMING | 1250.0 | Codeforces Round #643 (Div. 2) Editorial | 1800 |
| 8351 | The Best Vacation | binary search brute force greedy implementation two pointers | Statement | D | Codeforces Round 645 (Div. 2) {1358} | PROGRAMMING | 1500.0 | Codeforces Round #645 (Div. 2) Editorial | 1900 |
| 4377 | Two Arrays | binary search brute force combinatorics dp greedy implementation two pointers | Statement | E | Educational Codeforces Round 89 (Rated for Div. 2) {1366} | PROGRAMMING | Educational Codeforces Round 89 Editorial | ||
| 1723 | Flying Sort (Hard Version) | binary search dp greedy two pointers | Statement | F2 | Codeforces Round 650 (Div. 3) {1367} | PROGRAMMING | Codeforces Round #650 (Div. 3) Editorial |