Review the problem statement from Codeforces (link will open a new tab). When you've matched your problem, go to the solutions.
Search on plain tags, ratings, names, and problem text. Example: brute force or binary search
Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 1575 | Axis Walking | bitmasks combinatorics constructive algorithms dp meet-in-the-middle | Statement | E | Codeforces Round 191 (Div. 2) {327} | PROGRAMMING | Codeforces Round #191 — Tutorial | 2500 | |
| 1413 | Secure Password | bitmasks combinatorics constructive algorithms interactive math | Statement | G | Codeforces Round 648 (Div. 2) {1365} | PROGRAMMING | 3000.0 | Editorial — Codeforces Round #648 | 2800 |
| 4414 | Almost Sorted | binary search bitmasks combinatorics constructive algorithms dp implementation math | Statement | B | Codeforces Round 715 (Div. 1) {1508} | PROGRAMMING | 1000.0 | Codeforces Round #715 Editorial | |
| 19960 | AND Sequences | bitmasks combinatorics constructive algorithms | Statement | B | Divide by Zero 2021 and Codeforces Round 714 (Div. 2) {1513} | PROGRAMMING | 1250.0 | Divide by Zero 2021 and Codeforces Round #714 (Div. 2) Editorial | |
| 11282 | Divan and bitwise operations | bitmasks combinatorics constructive algorithms dp math | Statement | C | Codeforces Round 757 (Div. 2) {1614} | PROGRAMMING | 1500.0 | Tutorial | 1500 |
| 681 | Lost Array | bitmasks combinatorics constructive algorithms dp math | Statement | F | Codeforces Round 812 (Div. 2) {1713} | PROGRAMMING | 3000.0 | Codeforces Round #812 (Div. 2) Editorial | 2900 |
| 3242 | ConstructOR | bitmasks chinese remainder theorem combinatorics constructive algorithms number theory | Statement | D | Codeforces Round 833 (Div. 2) {1748} | PROGRAMMING | 2000.0 | Codeforces Round #833 (Div. 2) Editorial | 2100 |
| 3035 | Guess Game | bitmasks combinatorics constructive algorithms data structures games math probabilities strings trees | Statement | E | Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) {1864} | PROGRAMMING | 2000.0 | Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) Editorial | |
| 8401 | Goodbye, Banker Life | bitmasks combinatorics constructive algorithms math number theory | Statement | F | Codeforces Round 1006 (Div. 3) {2072} | PROGRAMMING | Codeforces Round 1006 (Div. 3) Editorial |