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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 439 | Cannon | data structures geometry sortings | Statement | E | Codeforces Beta Round 44 (Div. 2) {47} | PROGRAMMING | Codeforces Beta Round #44: tutorial | 2100 | |
| 1091 | Professor's task | data structures geometry | Statement | D | Codeforces Beta Round 64 {70} | PROGRAMMING | Analysis Codeforces Beta Round #64 | 2700 | |
| 670 | Igloo Skyscraper | data structures geometry | Statement | E | Codeforces Beta Round 75 (Div. 1 Only) {91} | PROGRAMMING | Analysis Codeforces Beta Round #75 | 2400 | |
| 232 | Cubes | data structures dp geometry two pointers | Statement | D | Codeforces Round 150 (Div. 1) {243} | PROGRAMMING | Editorial for Codeforces Round #150 | 2700 | |
| 508 | Donkey and Stars | data structures dp geometry math sortings | Statement | D | Codeforces Round 152 (Div. 1) {249} | PROGRAMMING | Разбор задач Codeforces Round #152 | 2600 | |
| 782 | Interval Cubing | data structures math | Statement | D | Codeforces Round 185 (Div. 1) {311} | PROGRAMMING | Codeforces Round #185 Editorial (Div.2 B&Div.1 E) | 2500 | |
| 576 | 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 | |
| 295 | Looking for Owls | binary search data structures geometry hashing sortings | Statement | D | Codeforces Round 203 (Div. 2) {350} | PROGRAMMING | Editorial Codeforces Round #203 (Div. 2) | 2600 | |
| 206 | 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 | |
| 3226 | Tricky Function | data structures divide and conquer geometry | Statement | D | Codeforces Round 245 (Div. 1) {429} | PROGRAMMING | Codeforces Round #245 — Editorial | 2100 | |
| 22588 | Han Solo and Lazer Gun | brute force data structures geometry implementation math | Statement | B | Codeforces Round 291 (Div. 2) {514} | PROGRAMMING | Codeforces Round #291 (Div. 2) Editorial | 1400 | |
| 4839 | Vanya and Triangles | brute force combinatorics data structures geometry math sortings | Statement | D | Codeforces Round 308 (Div. 2) {552} | PROGRAMMING | Codeforces #308 (Div. 2) Editorial | 1900 | |
| 1724 | Vika and Segments | constructive algorithms data structures geometry two pointers | Statement | D | Codeforces Round 337 (Div. 2) {610} | PROGRAMMING | Codeforces Round #337 (Div.2) Editorial | 2300 | |
| 695 | Robot Arm | data structures geometry | Statement | E | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) {618} | PROGRAMMING | Wunder Fund Round 2016 Editorials | 2500 | |
| 3183 | Product Sum | data structures dp geometry | Statement | E | Codeforces Round 344 (Div. 2) {631} | PROGRAMMING | Editorial Codeforces Round #344 (Div. 2) | 2500 | |
| 16618 | Watchmen | data structures geometry math | Statement | A | Codeforces Round 345 (Div. 1) {650} | PROGRAMMING | Codeforces Round #345: editorial | 1500 | |
| 2280 | Bear and Bowling 4 | binary search data structures geometry ternary search | Statement | F | Educational Codeforces Round 11 {660} | PROGRAMMING | Editorial of Educational Codeforces Round 11 | 2500 | |
| 1030 | Lena and Queries | data structures divide and conquer geometry | Statement | F | Educational Codeforces Round 13 {678} | PROGRAMMING | Editorial | 2600 | |
| 2118 | Mike and Geometry Problem | combinatorics data structures dp geometry implementation | Statement | E | Codeforces Round 361 (Div. 2) {689} | PROGRAMMING | Tutorial | 2300 | |
| 347 | Iron Man | data structures geometry trees | Statement | E | Codeforces Round 366 (Div. 1) {704} | PROGRAMMING | Tutorial | 3500 | |
| 511 | Sherlock's bet to Moriarty | constructive algorithms data structures divide and conquer geometry graphs implementation trees | Statement | F | 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 | 2700 | |
| 234 | Mages and Monsters | data structures geometry | Statement | F | Educational Codeforces Round 18 {792} | PROGRAMMING | Educational Codeforces Round 18 - Editorial | 3100 | |
| 122 | Cut the pie | binary search data structures geometry | Statement | G | Playrix Codescapes Cup (Codeforces Round 413, rated, Div. 1 + Div. 2) {799} | PROGRAMMING | Playrix Codescapes Cup Problems Analysis | 2600 | |
| 749 | Karen and Cards | binary search combinatorics data structures geometry | Statement | D | Codeforces Round 419 (Div. 1) {815} | PROGRAMMING | Codeforces Round #419 Editorial | 2700 | |
| 2001 | Rooter's Song | constructive algorithms data structures geometry implementation sortings two pointers | Statement | B | Codeforces Round 431 (Div. 1) {848} | PROGRAMMING | Codeforces Round #431 Editorial | 2100 | |
| 81 | Lada Malina | data structures geometry | Statement | E | Codeforces Round 433 (Div. 1, based on Olympiad of Metropolises) {853} | PROGRAMMING | Codeforces Round #433 Editorial | 3400 | |
| 4087 | Escape Through Leaf | data structures dp geometry | Statement | F | ICM Technex 2018 and Codeforces Round 463 (Div. 1 + Div. 2, combined) {932} | PROGRAMMING | 57796 | 2700 | |
| 207 | Visible Black Areas | data structures dsu geometry trees | Statement | G | Educational Codeforces Round 42 (Rated for Div. 2) {962} | PROGRAMMING | Educational Codeforces Round 42 Editorial | 2900 | |
| 2049 | Leaving the Bar | brute force data structures geometry greedy math sortings | Statement | C | Codeforces Round 492 (Div. 1) [Thanks, uDebug!] {995} | PROGRAMMING | Editorial for Codeforces Round #492 [Thanks u-Debug!] | 2200 | |
| 5572 | The Fair Nut and Rectangles | data structures dp geometry | Statement | E | Codeforces Round 526 (Div. 1) {1083} | PROGRAMMING | 63753 | 2400 | |
| 3947 | Power Transmission (Hard Edition) | data structures geometry implementation math | Statement | C2 | Codeforces Round 558 (Div. 2) {1163} | PROGRAMMING | 66943 | 2000 | |
| 698 | Yet Another Partiton Problem | data structures divide and conquer dp geometry two pointers | Statement | G | Educational Codeforces Round 66 (Rated for Div. 2) {1175} | PROGRAMMING | Editorial | 2700 | |
| 2041 | Count The Rectangles | bitmasks brute force data structures geometry sortings | Statement | E | Educational Codeforces Round 68 (Rated for Div. 2) {1194} | PROGRAMMING | Разбор Educational Codeforces Round 68 | 2200 | |
| 1035 | Geometers Anonymous Club | data structures geometry math sortings | Statement | F | Codeforces Round 574 (Div. 2) {1195} | PROGRAMMING | Разбор Codeforces Round #574 (Div. 2) | 2700 | |
| 95 | Guarding warehouses | data structures geometry | Statement | B | Bubble Cup 12 - Finals [Online Mirror, unrated, Div. 1] {1218} | PROGRAMMING | E | 2700 | |
| 4326 | Water Balance | data structures geometry greedy | Statement | C | Codeforces Round 618 (Div. 1) {1299} | PROGRAMMING | 1250.0 | Codeforces Round #618 Editorial | 2100 |
| 1005 | Sum of Prefix Sums | data structures divide and conquer geometry trees | Statement | G | Educational Codeforces Round 82 (Rated for Div. 2) {1303} | PROGRAMMING | Educational Codeforces Round 82 | 2700 | |
| 583 | RC Kaboom Show | binary search brute force data structures geometry math | Statement | F | Educational Codeforces Round 88 (Rated for Div. 2) {1359} | PROGRAMMING | Educational Codeforces Round 88 Editorial | 2900 | |
| 675 | Shifting Dominoes | data structures geometry graphs trees | Statement | G | Codeforces Global Round 8 {1368} | PROGRAMMING | 3500.0 | Codeforces Global Round 8: editorial | |
| 141 | Mixture | *special data structures geometry math sortings | Statement | B | Baltic Olympiad in Informatics 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated) {1386} | PROGRAMMING | T | ||
| 647 | Uncle Bogdan and Projections | data structures geometry sortings | Statement | E | Codeforces Round 660 (Div. 2) {1388} | PROGRAMMING | 2750.0 | Codeforces Round #660 Editorial | 2700 |
| 2628 | Divide Square | data structures divide and conquer geometry implementation sortings | Statement | E | Codeforces Round 665 (Div. 2) {1401} | PROGRAMMING | 2500.0 | Codeforces Round #665 (Div. 2) Editorial | |
| 4666 | Searchlights | binary search brute force data structures dp geometry implementation sortings | Statement | D | Grakn Forces 2020 {1408} | PROGRAMMING | 2000.0 | Grakn Forces -- Editorial | |
| 372 | Line Distance | binary search data structures geometry | Statement | F | Codeforces Round 683 (Div. 1, by Meet IT) {1446} | PROGRAMMING | 3000.0 | E | |
| 215 | Balance the Cards | constructive algorithms data structures divide and conquer geometry graphs implementation | Statement | F | Codeforces Round 712 (Div. 1) {1503} | PROGRAMMING | 4000.0 | T | 3500 |
| 661 | Tree Queries | binary search data structures dp dsu geometry trees | Statement | F | Educational Codeforces Round 116 (Rated for Div. 2) {1606} | PROGRAMMING | 96454 | ||
| 955 | Interesting Sections | binary search data structures divide and conquer geometry meet-in-the-middle | Statement | F | Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} | PROGRAMMING | 3000.0 | Deltix Round, Autumn 2021. Editorial | 2800 |
| 97 | Spaceship Crisis Management | binary search data structures geometry sortings | Statement | F | Codeforces Round 767 (Div. 1) {1628} | PROGRAMMING | 3000.0 | 99276 | |
| 18633 | Weird Sum | combinatorics data structures geometry math matrices sortings | Statement | A | Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} | PROGRAMMING | 500.0 | Codeforces Round #775 Editorial | |
| 2118 | Long Way Home | data structures divide and conquer dp geometry graphs shortest paths | Statement | E | Codeforces Round 816 (Div. 2) {1715} | PROGRAMMING | 2750.0 | Codeforces Round #816 (Div. 2) editorial | |
| 253 | Pebbles and Beads | data structures dp geometry | Statement | F | Codeforces Round 824 (Div. 2) {1735} | PROGRAMMING | 3000.0 | Codeforces Round #824 — editorial | |
| 152 | Arranging Crystal Balls | data structures divide and conquer divide and conquer dp geometry graphs number theory | Statement | I | Codeforces Round 831 (Div. 1 + Div. 2) {1740} | PROGRAMMING | 3500.0 | Tutorial | 3500 |
| 15373 | The Morning Star | combinatorics data structures geometry implementation math sortings | Statement | G | Codeforces Round 886 (Div. 4) {1850} | PROGRAMMING | Codeforces Round #886 (Div. 4) Editorial | ||
| 319 | Evaluate RBS | data structures geometry sortings | Statement | F | Educational Codeforces Round 153 (Rated for Div. 2) {1860} | PROGRAMMING | Educational Codeforces Round 153 Editorial | ||
| 320 | Two Characters, Two Colors | binary search data structures dp flows geometry | Statement | G | Educational Codeforces Round 157 (Rated for Div. 2) {1895} | PROGRAMMING | Educational Codeforces Round 157 Editorial | ||
| 5239 | Robot Queries | binary search data structures geometry sortings | Statement | D | Educational Codeforces Round 159 (Rated for Div. 2) {1902} | PROGRAMMING | Educational Codeforces Round 159 Editorial | ||
| 1801 | Manhattan Triangle | binary search constructive algorithms data structures geometry graphs two pointers | Statement | E | Codeforces Round 951 (Div. 2) {1979} | PROGRAMMING | 2500.0 | Codeforces Round 951 (Div. 2) Editorial | |
| 4380 | Field Division (easy version) | data structures geometry math sortings | Statement | F1 | Codeforces Round 950 (Div. 3) {1980} | PROGRAMMING | 130135 | ||
| 429 | Polygonal Segments | data structures geometry two pointers | Statement | F | Codeforces Round 960 (Div. 2) {1990} | PROGRAMMING | 3000.0 | Video Tutorial | |
| 14621 | Kevin and Geometry | brute force constructive algorithms data structures geometry greedy implementation math two pointers | Statement | B | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} | PROGRAMMING | 1000.0 | IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial | |
| 497 | Cycling (Hard Version) | binary search data structures dp geometry greedy | Statement | F2 | Codeforces Round 1023 (Div. 2) {2107} | PROGRAMMING | 2500.0 | Codeforces Round 1023 (Div 2) Editorial | |
| 61 | Good Robot Paths | *special data structures geometry sortings | Statement | G | Kotlin Heroes: Episode 13 {2141} | PROGRAMMING | Kotlin Heroes 13 Editorial | ||
| 8987 | khba Loves to Sleep! | binary search data structures geometry implementation math | Statement | E | Codeforces Round 1062 (Div. 4) {2167} | PROGRAMMING | Arpa Video Tutorial | ||
| 5686 | Fibonacci Paths | data structures dp geometry graphs sortings | Statement | D | Codeforces Round 1070 (Div. 2) {2176} | PROGRAMMING | 2000.0 | Codeforces Round 1070 (Div.2) Editorial | |
| 113 | Star Map | constructive algorithms data structures geometry greedy | Statement | E | Codeforces Round 1092 (Unrated, Div. 1, Based on THUPC 2026 — Finals) {2215} | PROGRAMMING | 3000.0 |