Teamscode Spring 2024 (Novice Division)

12 problems from Teamscode Spring 2024 (Novice Division) (contest 105066), difficulty -. 2/12 solutions verified against sample I/O.

12 items

Teamscode Spring 2024 (Novice Division)

Special | 12 problems | 2/12 verified | Difficulty - | 17m 46s

#	Problem	Time	✓
A	It's Time to Submit	54s	✓
B	A Bit of Monkeying	1m 32s
C	Alternet is Cheating	1m 35s
D	Haagendaz is Justice	1m 27s	✓
E	Richard Lore	1m 42s
F	Unique Subsequences	1m 18s
G	Sleepy Pandas	1m 31s
H	Afterimages	2m 20s
I	Another Bitwise Problem	1m 16s
J	Everyone Loves Threes Magic (Easy Version)	1m 25s
K	Another Ordering Problem	1m 23s
L	Gaslighting	1m 23s

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066C - Alternet is Cheating

We are given a knockout tournament with $N$ players, where $N$ is a power of two. Matches are fixed: adjacent players in the current list play, and winners move forward in order to the next round. This continues until a single champion remains.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066G - Sleepy Pandas

We are given an array of integers, where each value is a label written on a panda. For every ordered pair of distinct indices $(i, j)$, we imagine taking the two numbers $xi$ and $xj$ and concatenating them in that order to form a new integer.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066E - Richard Lore

We are given an array of values and a fixed sequence of index swaps that Jinshi repeatedly applies whenever he “tests” whether the array can be sorted. Importantly, after every test he restores the array, so the swap sequence always runs on a fresh copy.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066D - Haagendaz is Justice

Two people take turns eating from an infinite sequence of numbered items, starting from 1 and going upward without gaps. The key rule is that each person does not eat a fixed amount: instead, on their turn they eat as many items as their current “capacity” allows.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066B - A Bit of Monkeying

We are given an array of integers and two independent processes that try to transform it. Each process receives its own copy of the same array.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066A - It's Time to Submit

The task is intentionally minimal: we are given a single integer T and must decide whether it is possible to obtain the string "YES" by simply printing the sample output provided in the problem statement.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066H - Afterimages

We are given two arrays of heights, each of length $n$, representing two lines of Korosensei’s afterimages. During each song, every position $i$ forms a pair between the $i$-th element of the first line and the $i$-th element of the second line, and their interaction cost is…

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066L - Gaslighting

We are given a fixed string and then a large number of queries, each query specifying a substring interval $[l, r]$.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066K - Another Ordering Problem

We are given a collection of sushi toppings, each topping having a cost and a single forbidden relationship. If we choose topping i, then another specific topping bi is not allowed to appear together with it.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066J - Everyone Loves Threes Magic (Easy Version)

We are given many independent queries, and each query defines an interval $[L, R]$ with values up to one million. For each such interval, we must imagine all subintervals $[l, r]$ that lie completely inside it, meaning $L le l le r le R$.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066I - Another Bitwise Problem

We are given an array of integers, and we repeatedly apply a transformation controlled by a nonnegative integer parameter $x$. For a fixed choice of $x$, every array element $ai$ is XORed with $x$, and all these results are summed together.

Practice › Codeforces Solutions › Teamscode Spring 2024 (Novice Division) ›

CF 105066F - Unique Subsequences

We are given a string and a target length $k$. From this string, we consider every possible subsequence of length $k$. A subsequence is formed by choosing positions in increasing order, not necessarily contiguous, and reading the characters at those positions.