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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 2513 | Sum of Medians | binary search brute force data structures implementation | Statement | D | Yandex.Algorithm 2011: Round 1 {85} | PROGRAMMING | Yandex.Algorithm 2011 - Round 1. Problem C. Tutorial | 2200 | |
| 609 | Printer | binary search data structures implementation sortings | Statement | E | Codeforces Round 154 (Div. 2) {253} | PROGRAMMING | Codeforces Round #154 (Div. 2) — tutorial | 2300 | |
| 231 | Inna and Babies | binary search data structures dsu geometry implementation | Statement | E | Codeforces Round 220 (Div. 2) {374} | PROGRAMMING | Codeforces Round #220 (Div. 2) разбор | 2600 | |
| 10698 | Bear and Prime Numbers | binary search brute force data structures dp implementation math number theory | Statement | C | Codeforces Round 226 (Div. 2) {385} | PROGRAMMING | Codeforces Round #226 (Div. 2) — Editorial | 1800 | |
| 7553 | 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 | |
| 7610 | Glass Carving | binary search data structures implementation | Statement | C | Codeforces Round 296 (Div. 2) {527} | PROGRAMMING | Codeforces Round #296 Editorial | 1800 | |
| 2578 | Infinite Inversions | binary search data structures implementation sortings trees | Statement | E | Codeforces Round 301 (Div. 2) {540} | PROGRAMMING | Tutorial | 2400 | |
| 2210 | GukiZ and GukiZiana | binary search data structures implementation | Statement | E | Codeforces Round 307 (Div. 2) {551} | PROGRAMMING | Tutorial | 2600 | |
| 1020 | Hostname Aliases | *special binary search data structures implementation sortings strings | Statement | C | CROC 2016 - Qualification {644} | PROGRAMMING | 2300 | ||
| 6290 | Molly's Chemicals | binary search brute force data structures implementation math | Statement | C | ICM Technex 2017 and Codeforces Round 400 (Div. 1 + Div. 2, combined) {776} | PROGRAMMING | ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) Editorial | 1800 | |
| 6893 | Alyona and Spreadsheet | binary search data structures dp greedy implementation two pointers | Statement | C | Codeforces Round 401 (Div. 2) {777} | PROGRAMMING | Problem analysis of Codeforces Round #401 (Div. 2) | 1600 | |
| 4072 | Fountains | binary search data structures implementation | Statement | C | Playrix Codescapes Cup (Codeforces Round 413, rated, Div. 1 + Div. 2) {799} | PROGRAMMING | Playrix Codescapes Cup Problems Analysis | 1700 | |
| 8375 | Array Division | binary search data structures implementation | Statement | D | Educational Codeforces Round 21 {808} | PROGRAMMING | 52010 | 1900 | |
| 29013 | Karen and Coffee | binary search data structures implementation | Statement | B | Codeforces Round 419 (Div. 2) {816} | PROGRAMMING | Codeforces Round #419 Editorial | 1400 | |
| 9330 | Mentors | binary search data structures implementation | Statement | F | Codeforces Round 481 (Div. 3) {978} | PROGRAMMING | T | 1500 | |
| 1108 | New Year and the Acquaintance Estimation | binary search data structures graphs greedy implementation math sortings | Statement | E | Good Bye 2018 {1091} | PROGRAMMING | Editorial | 2400 | |
| 318 | Sasha and a Patient Friend | binary search data structures implementation | Statement | C | Codeforces Round 539 (Div. 1) {1109} | PROGRAMMING | Codeforces Round #539 Editorial | 2800 | |
| 2517 | Serge and Dining Room | binary search data structures graph matchings greedy implementation math trees | Statement | C | Codeforces Round 569 (Div. 1) {1179} | PROGRAMMING | Editorial of Round #569 | 2400 | |
| 2874 | 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 | |
| 5598 | Restore Permutation | binary search data structures greedy implementation | Statement | D | Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2) {1208} | PROGRAMMING | 69357 | 1900 | |
| 4859 | Balanced Playlist | binary search data structures implementation | Statement | D | Codeforces Global Round 5 {1237} | PROGRAMMING | T | 1900 | |
| 11571 | New Year and Ascent Sequence | binary search combinatorics data structures dp implementation sortings | Statement | B | Hello 2020 {1284} | PROGRAMMING | Hello 2020 Editorial | 1500 | |
| 1656 | Nanosoft | binary search data structures dp implementation | Statement | E | Codeforces Round 619 (Div. 2) {1301} | PROGRAMMING | 2500.0 | Codeforces Round #619 (Div. 2) Editorial | 2500 |
| 30814 | Frog Jumps | binary search data structures greedy implementation | Statement | C | Codeforces Round 627 (Div. 3) {1324} | PROGRAMMING | Codeforces Round #627 (Div. 3) Editorial | ||
| 13629 | 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 | |
| 5261 | Binary Subsequence Rotation | binary search data structures dp greedy implementation | Statement | E | Codeforces Round 651 (Div. 2) {1370} | PROGRAMMING | 2500.0 | Editorial — Codeforces Round #651 | |
| 2620 | Two Types of Spells | binary search data structures greedy implementation math sortings | Statement | E | Educational Codeforces Round 93 (Rated for Div. 2) {1398} | PROGRAMMING | Educational Codeforces Round 93 Editorial | ||
| 4727 | Searchlights | binary search brute force data structures dp geometry implementation sortings | Statement | D | Grakn Forces 2020 {1408} | PROGRAMMING | 2000.0 | Grakn Forces -- Editorial | |
| 17336 | k-Amazing Numbers | binary search data structures implementation two pointers | Statement | A | Codeforces Round 673 (Div. 1) {1416} | PROGRAMMING | 500.0 | Codeforces Round #673 Editorial | 1500 |
| 10371 | Divide and Summarize | binary search brute force data structures divide and conquer implementation sortings | Statement | D | Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} | PROGRAMMING | 1500.0 | Codeforces Round #689 (Div. 2). Editorial | |
| 1089 | Game with Cards | binary search constructive algorithms data structures dp implementation | Statement | E | Codeforces Round 727 (Div. 2) {1539} | PROGRAMMING | 2000.0 | tutorial | 2500 |
| 10581 | Book | binary search data structures dp graphs implementation | Statement | A | Codeforces Round 743 (Div. 1) {1572} | PROGRAMMING | 500.0 | Tutorial | 1800 |
| 513 | The Cells on the Paper | binary search data structures implementation sortings | Statement | E | Codeforces Round 758 (Div.1 + Div. 2) {1608} | PROGRAMMING | 2000.0 | Editorial of Codeforces Round #758 (Div.1 + Div. 2) | |
| 1945 | New School | binary search data structures greedy implementation sortings | Statement | E | Hello 2022 {1621} | PROGRAMMING | 2250.0 | ||
| 1787 | Spanning Tree Queries | binary search data structures dsu graphs implementation math sortings | Statement | E | Educational Codeforces Round 122 (Rated for Div. 2) {1633} | PROGRAMMING | 99539 | ||
| 4492 | Rescheduling the Exam | binary search data structures greedy implementation math sortings | Statement | E | Codeforces Round 776 (Div. 3) {1650} | PROGRAMMING | 100712 | ||
| 1849 | MinimizOR | binary search bitmasks data structures dp greedy implementation | Statement | E | Codeforces Round 781 (Div. 2) {1665} | PROGRAMMING | 2250.0 | Codeforces Round #781 (Div. 2) Editorial | |
| 7688 | Max GEQ Sum | binary search constructive algorithms data structures divide and conquer implementation sortings two pointers | Statement | D | CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} | PROGRAMMING | 1750.0 | Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2) | |
| 9837 | Path Prefixes | binary search data structures dfs and similar implementation trees | Statement | G | Codeforces Round 811 (Div. 3) {1714} | PROGRAMMING | Codeforces Round #811 (Div. 3) Editorial | ||
| 14452 | Fighting Tournament | binary search data structures implementation two pointers | Statement | C | Codeforces Round 814 (Div. 2) {1719} | PROGRAMMING | 1250.0 | Codeforces Round #814 (Div. 1, Div. 2) Editorial | |
| 1451 | Rectangle Shrinking | binary search data structures greedy implementation two pointers | Statement | E | VK Cup 2022 - Отборочный раунд (Engine) {1781} | PROGRAMMING | 2750.0 | Tutorial | |
| 18823 | Tea Tasting | binary search data structures implementation | Statement | C | Educational Codeforces Round 143 (Rated for Div. 2) {1795} | PROGRAMMING | 112963 | ||
| 962 | Traveling in Berland | binary search data structures graphs greedy implementation | Statement | F | Educational Codeforces Round 145 (Rated for Div. 2) {1809} | PROGRAMMING | 114300 | ||
| 2863 | MEX of LCM | binary search brute force data structures implementation math number theory two pointers | Statement | E | Codeforces Round 879 (Div. 2) {1834} | PROGRAMMING | 2500.0 | Codeforces Round #879 Editorial | |
| 2723 | Editorial for Two | binary search data structures greedy implementation | Statement | F | Educational Codeforces Round 149 (Rated for Div. 2) {1837} | PROGRAMMING | 116752 | ||
| 25950 | Vika and the Bridge | binary search data structures greedy implementation math sortings | Statement | B | Codeforces Round 885 (Div. 2) {1848} | PROGRAMMING | 1000.0 | Codeforces Round #885 (Div.2) Editorial | |
| 13250 | Colorful Table | binary search data structures dp implementation math sortings two pointers | Statement | C | CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} | PROGRAMMING | 1500.0 | CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial | |
| 2983 | Anya and the Mysterious String | binary search data structures implementation | Statement | G | Codeforces Round 903 (Div. 3) {1881} | PROGRAMMING | 121327 | ||
| 5826 | Set To Max (Hard Version) | binary search constructive algorithms data structures dsu greedy implementation sortings two pointers | Statement | D2 | Codeforces Round 914 (Div. 2) {1904} | PROGRAMMING | 750.0 | Codeforces Round 914 (Div. 2) Editorial | |
| 1369 | Tree Queries | binary search data structures dfs and similar implementation trees | Statement | E | Codeforces Round 914 (Div. 2) {1904} | PROGRAMMING | 2750.0 | Codeforces Round 914 (Div. 2) Editorial | |
| 4714 | Cyclic MEX | binary search constructive algorithms data structures implementation math two pointers | Statement | D | Codeforces Round 915 (Div. 2) {1905} | PROGRAMMING | 2000.0 | Codeforces Round 915 (Div. 2) Editorial | |
| 6395 | Blocking Elements | binary search data structures dp greedy implementation two pointers | Statement | D | Codeforces Round 922 (Div. 2) {1918} | PROGRAMMING | 2000.0 | Codeforces Round #922 (Div. 2) Editorial | |
| 6590 | Array Repetition | binary search data structures dp implementation math | Statement | D | Codeforces Round 919 (Div. 2) {1920} | PROGRAMMING | 2000.0 | Editorial for Codeforces Round #919 (Div. 2) | |
| 15121 | Vlad and an Odd Ordering | binary search bitmasks data structures dp implementation math number theory | Statement | E | Codeforces Round 928 (Div. 4) {1926} | PROGRAMMING | 126132 | ||
| 1682 | Distance Learning Courses in MAC | binary search bitmasks data structures greedy implementation math | Statement | E | Codeforces Round 932 (Div. 2) {1935} | PROGRAMMING | 2500.0 | Codeforces Round #932 (Div. 2) Editorial | |
| 941 | Cook and Porridge | binary search constructive algorithms data structures implementation | Statement | G | Codeforces Round 935 (Div. 3) {1945} | PROGRAMMING | 127377 | ||
| 4456 | Cutting Game | binary search brute force data structures implementation sortings two pointers | Statement | F | Codeforces Round 946 (Div. 3) {1974} | PROGRAMMING | Codeforces Round #946 (Div. 3) Editorial | 1900 | |
| 2931 | Chain Queries | binary search data structures dfs and similar implementation trees | Statement | E | Codeforces Round 947 (Div. 1 + Div. 2) {1975} | PROGRAMMING | 2000.0 | editorial_zh.pdf | 2100 |
| 5903 | Invertible Bracket Sequences | binary search combinatorics data structures divide and conquer implementation two pointers | Statement | D | Educational Codeforces Round 166 (Rated for Div. 2) {1976} | PROGRAMMING | Educational Codeforces Round 166 Editorial | ||
| 1843 | Range Minimum Sum | binary search brute force data structures implementation | Statement | E | Codeforces Round 958 (Div. 2) {1988} | PROGRAMMING | 2500.0 | Editorial of Codeforces Round 958 (Div. 2) | |
| 3857 | Level Up | binary search brute force data structures implementation | Statement | E | Educational Codeforces Round 168 (Rated for Div. 2) {1997} | PROGRAMMING | Video Tutorial | ||
| 923 | Eliminating Balls With Merging (Hard Version) | binary search brute force data structures divide and conquer implementation | Statement | E2 | Codeforces Round 965 (Div. 2) {1998} | PROGRAMMING | 1750.0 | Video Tutorial | |
| 2350 | Ksyusha and the Loaded Set | binary search data structures dp implementation trees | Statement | H | Codeforces Round 966 (Div. 3) {2000} | PROGRAMMING | 132689 | ||
| 677 | Game in Tree (Easy Version) | binary search data structures games implementation trees | Statement | F1 | Codeforces Round 973 (Div. 2) {2013} | PROGRAMMING | 2000.0 | 134298 | |
| 7615 | Minimize the Difference | binary search data structures greedy implementation math | Statement | D | Codeforces Round 973 (Div. 2) {2013} | PROGRAMMING | 2000.0 | 134298 | |
| 6070 | Sums of Segments | binary search data structures dp implementation math | Statement | D | Educational Codeforces Round 171 (Rated for Div. 2) {2026} | PROGRAMMING | Educational Codeforces Round 171 Editorial | ||
| 1935 | The Endspeaker (Hard Version) | binary search combinatorics data structures dp greedy implementation two pointers | Statement | D2 | Codeforces Round 982 (Div. 2) {2027} | PROGRAMMING | 1000.0 | Codeforces Round #982 (Div. 2) Editorial | |
| 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 | |
| 5443 | Recommendations | binary search data structures implementation sortings | Statement | D | Educational Codeforces Round 172 (Rated for Div. 2) {2042} | PROGRAMMING | 136886 | ||
| 7807 | Refined Product Optimality | binary search data structures greedy implementation math schedules sortings | Statement | D | Good Bye 2024: 2025 is NEAR {2053} | PROGRAMMING | 1750.0 | 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 | |
| 528 | Beautiful Sequence Returns | binary search data structures implementation | Statement | F | Educational Codeforces Round 176 (Rated for Div. 2) {2075} | PROGRAMMING | Educational Codeforces Round 176 Editorial | ||
| 5487 | Changing the String | binary search data structures greedy implementation sortings strings | Statement | E | Educational Codeforces Round 179 (Rated for Div. 2) {2111} | PROGRAMMING | Educational Codeforces Round 179 Editorial | ||
| 2310 | Ice Baby | binary search brute force data structures dp implementation sortings | Statement | H | Codeforces Round 1032 (Div. 3) {2121} | PROGRAMMING | Codeforces Round 1032 (Div. 3) Editorial | ||
| 4171 | Adjusting Drones | binary search data structures dsu greedy implementation sortings | Statement | E | Codeforces Round 1066 (Div. 1 + Div. 2) {2157} | PROGRAMMING | 2000.0 | Codeforces Round 1066 (Div. 1 + Div. 2) Editorial | |
| 2841 | Locked Out | binary search data structures dp graphs greedy implementation two pointers | Statement | D | Pinely Round 5 (Div. 1 + Div. 2) {2161} | PROGRAMMING | 2250.0 | ||
| 9490 | khba Loves to Sleep! | binary search data structures geometry implementation math | Statement | E | Codeforces Round 1062 (Div. 4) {2167} | PROGRAMMING | Arpa Video Tutorial | ||
| 7549 | Rae Taylor and Trees (hard version) | binary search constructive algorithms data structures dp dsu implementation trees | Statement | F | Codeforces Round 1065 (Div. 3) {2171} | PROGRAMMING | Codeforces Round 1065 (Div. 3) Editorial | ||
| 12230 | Rae Taylor and Trees (easy version) | binary search data structures dp dsu greedy implementation trees | Statement | D | Codeforces Round 1065 (Div. 3) {2171} | PROGRAMMING | Codeforces Round 1065 (Div. 3) Editorial | ||
| 13628 | Palindromex | binary search brute force constructive algorithms data structures greedy implementation two pointers | Statement | D | Codeforces Round 1096 (Div. 3) {2227} | PROGRAMMING | Codeforces Round 1096 (Div. 3) — Editorial | ||
| 1431 | Minimum Influence | binary search data structures geometry greedy implementation math sortings two pointers | Statement | E | Educational Codeforces Round 190 (Rated for Div. 2) {2230} | PROGRAMMING | Educational Codeforces Round 190 — Editorial |