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Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 30 | Draw Polygon Lines | *special constructive algorithms dp geometry interactive | Statement | A | XVIII Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {1939} | PROGRAMMING | |||
| 419 | More Gifts | *special dfs and similar two pointers | Statement | C | XVIII Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {1939} | PROGRAMMING | |||
| 115 | Big Persimmon | *special dp games | Statement | D | XVIII Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {1939} | PROGRAMMING | |||
| 177 | Almost Certainly | *special constructive algorithms data structures sortings | Statement | D | XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} | PROGRAMMING | |||
| 106 | Parallel Universes | *special constructive algorithms dfs and similar dsu graphs | Statement | A | XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} | PROGRAMMING | |||
| 275 | Three Arrays | *special constructive algorithms implementation sortings | Statement | B | XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} | PROGRAMMING | |||
| 44 | Burenka and Pether | *special data structures dfs and similar divide and conquer dsu graphs sortings trees | Statement | C | XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} | PROGRAMMING | |||
| 2616 | 1-3-5 | *special dp | Statement | A | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 1100 | |
| 1211 | Clock in the Pool | *special math | Statement | B | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 1400 | |
| 337 | Yet Another Permutation Constructive | *special constructive algorithms | Statement | E | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 1900 | |
| 267 | Narrow Paths | *special combinatorics | Statement | F | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 2000 | |
| 97 | Composite Spells | *special dp | Statement | H | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 2600 | |
| 53 | Equal Trees | *special graphs meet-in-the-middle | Statement | I | Kotlin Heroes: Episode 10 {1958} | PROGRAMMING | 129483 | 3100 | |
| 24 | Stack and Queue | *special data structures divide and conquer | Statement | I | Kotlin Heroes: Episode 11 {2011} | PROGRAMMING | Kotlin Heroes 11 — Editorial | ||
| 132 | Good Subarray | *special data structures greedy | Statement | F | Kotlin Heroes: Episode 11 {2011} | PROGRAMMING | Kotlin Heroes 11 — Editorial | ||
| 58 | Strange Matrix | *special graphs greedy | Statement | H | Kotlin Heroes: Episode 11 {2011} | PROGRAMMING | Kotlin Heroes 11 — Editorial | ||
| 185 | Rock-Paper-Scissors Bot | *special greedy strings | Statement | E | Kotlin Heroes: Episode 11 {2011} | PROGRAMMING | Kotlin Heroes 11 — Editorial | ||
| 42 | Alice, Bob, And Two Arrays | *special data structures dp games | Statement | A | XIX Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {2079} | PROGRAMMING | |||
| 162 | Arithmetic Exercise | *special data structures dp greedy | Statement | B | XIX Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {2079} | PROGRAMMING | |||
| 714 | Cute Subsequences | *special sortings | Statement | D | XIX Open Olympiad in Informatics - Final Stage, Day 1 (Unrated, Online Mirror, IOI rules) {2079} | PROGRAMMING | |||
| 48 | Order Statistics | *special binary search | Statement | D | XIX Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {2080} | PROGRAMMING | |||
| 47 | Strong Connectivity Strikes Back | *special constructive algorithms graphs | Statement | A | XIX Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {2080} | PROGRAMMING | |||
| 490 | Coin Game | *special greedy | Statement | C | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 28 | Nim with Special Numbers | *special *special | Statement | H | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 27 | Hamiltonian Partition | *special *special | Statement | I | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 164 | Color the Arrows | *special *special dp dp | Statement | E | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 70 | Weapon Upgrade | *special *special dp dp | Statement | F | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 90 | Esports in Berland | *special *special greedy greedy | Statement | G | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 268 | Uppercase or Lowercase? | *special *special interactive | Statement | D | Kotlin Heroes: Episode 12 {2087} | PROGRAMMING | 141608 | ||
| 3789 | Would It Be Unrated? | *special brute force | Statement | C | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 642 | Mysterious Script | *special expression parsing | Statement | I | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 852 | Blurry Vision | *special fft math | Statement | H | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 6050 | Plinko | *special games interactive | Statement | B | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 5344 | Where Am I? | *special geometry | Statement | D | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 971 | Definitely a Geometry Problem | *special geometry | Statement | G | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 855 | ⅓ оf а Рrоblеm | *special math | Statement | F | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 795 | Pair Count | *special number theory | Statement | E | April Fools Day Contest 2025 {2095} | PROGRAMMING | April Fools Day Contest 2025 Editorial | ||
| 13888 | Piecing It Together | *special string suffix structures | Statement | A | April Fools Day Contest 2025 {2095} | PROGRAMMING | |||
| 358 | Minimum on Subarrays | *special brute force | Statement | C | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 64 | Good Robot Paths | *special data structures geometry sortings | Statement | G | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 85 | Merging Vertices in a Graph | *special dfs and similar dsu graphs | Statement | H | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 264 | Perfect Cut | *special dp greedy | Statement | E | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 1557 | Games | *special greedy | Statement | B | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 145 | Array Reduction | *special greedy | Statement | F | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 490 | Avoid Minimums | *special greedy math | Statement | D | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 1694 | Furniture Store | *special implementation | Statement | A | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 190 | Supersequence | *special binary search greedy | Statement | E | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 101 | Sum of MEX | *special combinatorics data structures dp math | Statement | H | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 180 | Self-Produced Sequences | *special combinatorics math | Statement | F | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 542 | Minesweeper | *special constructive algorithms greedy | Statement | C | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 1213 | Two Towers | *special greedy math | Statement | B | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 331 | Two Arrays | *special math | Statement | D | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 65 | Jammer | *special math | Statement | G | Kotlin Heroes: Episode 14 {2199} | PROGRAMMING | 151783 | ||
| 3695 | Special Problem | *special brute force games | Statement | J | April Fools Day Contest 2026 {2214} | PROGRAMMING | April Fools Day Contest 2026 Editorial | ||
| 1112 | Shortest Paths | *special shortest paths | Statement | E | April Fools Day Contest 2026 {2214} | PROGRAMMING | April Fools Day Contest 2026 Editorial |