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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 17700 | Powerful array | data structures implementation math two pointers | Statement | D | Yandex.Algorithm 2011: Round 2 {86} | PROGRAMMING | Problemset analysis (Yandex, Round 2) | 2700 | |
| 5880 | 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 | |
| 1111 | Sleep in Class | constructive algorithms data structures math two pointers | Statement | E | Codeforces Round 378 (Div. 2) {733} | PROGRAMMING | Codeforces Round #378 (Div. 2) editorial | 2500 | |
| 1386 | Bamboo Partition | brute force data structures implementation math number theory sortings two pointers | Statement | C | Codeforces Round 424 (Div. 1, rated, based on VK Cup Finals) {830} | PROGRAMMING | Codeforces Round #424 Editorial | 2500 | |
| 2719 | Random Query | data structures math probabilities two pointers | Statement | F | Educational Codeforces Round 28 {846} | PROGRAMMING | 54357 | 2000 | |
| 13190 | Reorder the Array | combinatorics data structures math sortings two pointers | Statement | A | Codeforces Round 497 (Div. 1) {1007} | PROGRAMMING | Editorial for Codeforces Round #497 by Skyglow | 1300 | |
| 13672 | Beautiful Numbers | data structures implementation math two pointers | Statement | B | Codeforces Round 604 (Div. 2) {1265} | PROGRAMMING | Codeforces Round #604 Editorial | 1300 | |
| 3948 | Decreasing Debts | constructive algorithms data structures graphs greedy implementation math two pointers | Statement | D | Codeforces Global Round 6 {1266} | PROGRAMMING | Codeforces Global Round 6 Editorial | 2000 | |
| 6177 | Choosing flowers | binary search data structures greedy math sortings two pointers | Statement | C | Codeforces Round 657 (Div. 2) {1379} | PROGRAMMING | 1250.0 | Codeforces Round #657 Editorial | 2000 |
| 1211 | Mercenaries | bitmasks combinatorics data structures math two pointers | Statement | G | Educational Codeforces Round 94 (Rated for Div. 2) {1400} | PROGRAMMING | 81942 | ||
| 11518 | Zigzags | brute force data structures dp math two pointers | Statement | D | Educational Codeforces Round 94 (Rated for Div. 2) {1400} | PROGRAMMING | 81942 | ||
| 548 | Equal Product | data structures math number theory two pointers | Statement | F | Educational Codeforces Round 95 (Rated for Div. 2) {1418} | PROGRAMMING | Unofficial Editorial for Educational Round 95 (Div. 2) | ||
| 5905 | GCD of an Array | data structures math number theory sortings two pointers | Statement | D | Codeforces Round 705 (Div. 2) {1493} | PROGRAMMING | 2250.0 | Codeforces Round #705 (Div.2) Editorial | |
| 35688 | Number of Pairs | binary search data structures math two pointers | Statement | C | Codeforces Round 725 (Div. 3) {1538} | PROGRAMMING | Codeforces Round #725 (Div. 3) Editorial | ||
| 11640 | Integers Have Friends | binary search data structures math number theory two pointers | Statement | B | Codeforces Round 736 (Div. 1) {1548} | PROGRAMMING | 1000.0 | Codeforces Round 736 Editorial | |
| 5438 | 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 | |
| 28427 | Subtract Operation | constructive algorithms data structures math two pointers | Statement | B | CodeTON Round 1 (Div. 1 + Div. 2, Rated, Prizes!) {1656} | PROGRAMMING | 1000.0 | Tutorial | |
| 4484 | Reverse Sort Sum | constructive algorithms data structures greedy implementation math two pointers | Statement | D | Codeforces Round 782 (Div. 2) {1659} | PROGRAMMING | 2000.0 | Codeforces Round #782 (Div. 2) Editorial | |
| 1686 | LCM Sum (hard version) | combinatorics data structures math number theory two pointers | Statement | E2 | Codeforces Round 813 (Div. 2) {1712} | PROGRAMMING | 750.0 | Codeforces Round #813 (Div. 2) Editorial | |
| 5982 | 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 | |
| 2194 | Vlad and the Nice Paths (hard version) | binary search combinatorics data structures dp math two pointers | Statement | G2 | Codeforces Round 863 (Div. 3) {1811} | PROGRAMMING | 114788 | ||
| 2890 | 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 | |
| 13291 | 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 | |
| 1324 | Split | binary search data structures divide and conquer math two pointers | Statement | D | Codeforces Round 905 (Div. 1) {1887} | PROGRAMMING | 1250.0 | Codeforces Round #905 (Div. 1, Div. 2, Div. 3) Editorial | |
| 7111 | Ones and Twos | data structures math two pointers | Statement | D | CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) {1896} | PROGRAMMING | 2000.0 | CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!) Editorial | |
| 4752 | 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 | |
| 17109 | Cat, Fox and the Lonely Array | binary search bitmasks data structures greedy math two pointers | Statement | B | Codeforces Round 945 (Div. 2) {1973} | PROGRAMMING | 1000.0 | Editorial for Codeforces Round #945 (Div. 2) | 1300 |
| 10305 | Bouquet (Hard Version) | binary search data structures greedy math sortings two pointers | Statement | B2 | Codeforces Round 961 (Div. 2) {1995} | PROGRAMMING | 500.0 | Video Tutorial | |
| 5922 | 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 | |
| 1349 | Kevin and Math Class | brute force data structures divide and conquer dp math trees two pointers | Statement | F | Codeforces Global Round 28 {2048} | PROGRAMMING | 2000.0 | Tutorial | |
| 110 | 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 | |
| 14969 | 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 | |
| 5175 | 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 | |
| 1340 | Canteen (Hard Version) | binary search data structures greedy math two pointers | Statement | B2 | Codeforces Round 1012 (Div. 1) {2089} | PROGRAMMING | 500.0 | Codeforces Round 1012 (Div.1, Div. 2, based on THUPC 2025 — Finals) Editorial | |
| 4825 | Unjust Binary Life | binary search binary search data structures greedy greedy math two pointers | Statement | F | Codeforces Round 1042 (Div. 3) {2131} | PROGRAMMING | Codeforces Round 1042 (Div. 3) Editorial | ||
| 1970 | 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 | |
| 21959 | OutOfMemoryError | data structures implementation math two pointers | Statement | D | Codeforces Round 1074 (Div. 4) {2185} | PROGRAMMING | Codeforces Round 1074 (Div. 4) Editorial | ||
| 3733 | Zhily and Barknights | binary search data structures dp math sortings two pointers | Statement | B | Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} | PROGRAMMING | 750.0 | Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial | |
| 8169 | Mental Monumental (Easy Version) | binary search data structures greedy math two pointers | Statement | C | Codeforces Round 1095 (Div. 2) {2226} | PROGRAMMING | 1500.0 | Codeforces Round 1095 (Div. 2) Editorial | |
| 1478 | 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 | ||
| 1286 | Revival | binary search constructive algorithms data structures math two pointers | Statement | C | Codeforces Round 1105 (Div. 1) {2239} | PROGRAMMING | 1500.0 | Codeforces Round 1105 (Div. 1, Div. 2) Editorial |