Bredor contest

7 problems from Bredor contest (contest 102638), difficulty -. 5/7 solutions verified against sample I/O.

7 items

Bredor contest

Special | 7 problems | 5/7 verified | Difficulty - | 16m 22s

# Problem Rating Tags Accepted Time ✓
A Listen To Your Heart 2m 31s ✓
B WA6 46s
C Anime 7m 10s ✓
D Distributed Computing 1m 36s ✓
E Rating Recalculating 2m 12s ✓
F Rudolph and Rhymes 52s ✓
G Noogies 1m 15s
Practice › Codeforces Solutions › Bredor contest ›

CF 102638F - Rudolph and Rhymes

We have two groups of strings of equal size. The first group contains questions and the second group contains prepared answers. We must assign every question exactly one answer and every answer exactly one question.
codeforces competitive-programming Aug 2, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638D - Distributed Computing

The system is a three dimensional grid of CPUs. A working CPU can send information only in the positive direction of each axis, meaning a CPU can move to its neighbor with one coordinate increased by one. Broken CPUs do not exist in the communication graph.
codeforces competitive-programming Aug 2, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638G - Noogies

The task is to construct a number n whose “random generator” produces exactly m positions. The generator chooses all integers from 1 to n that have at least one common divisor greater than 1 with n.
codeforces competitive-programming Aug 2, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638B - WA6

I can write the editorial, but the statement you provided is missing the one piece that defines the task: Vasya’s actual incorrect implementation.
codeforces competitive-programming Aug 2, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638E - Rating Recalculating

The problem describes a new way of assigning a Codeforces division from a user's rating. For a rating r, we choose an integer k, look at the value $$f(r-k,r)=frac{1+r+frac{r^2}{2!}+dots+frac{r^{r-k}}{(r-k)!}}{e^r}$$ and then compute floor(1 / f) - 1.
codeforces competitive-programming Aug 1, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638C - Anime

The shelf is a row of n positions. Some positions contain anime discs and the remaining positions contain trash. We are given k descriptions of discs, where each description only tells us the possible range of positions for that disc.
codeforces competitive-programming Aug 1, 2026
Practice › Codeforces Solutions › Bredor contest ›

CF 102638A - Listen To Your Heart

The task hides a single integer inside an equation involving square roots, cube roots, and two different powers. There is no input value to process. The program only has to determine the unique integer x satisfying the equation and print it.
codeforces competitive-programming Jul 31, 2026