ICPC Masters Mexico LATAM 2023

10 problems from ICPC Masters Mexico LATAM 2023 (contest 104393), difficulty -. 9/10 solutions verified against sample I/O.

10 items

ICPC Masters Mexico LATAM 2023

ICPC/IOI | 10 problems | 9/10 verified | Difficulty - | 16m 10s

#	Problem	Time	✓
A	Acrobatic Jumping	1m 21s	✓
B	BWS Baker Web Service	3m 28s	✓
C	Counting Risk Factors	1m 50s	✓
D	Destroying Asteriods	1m 17s	✓
E	Elisa's Melodies	1m 17s	✓
F	Funny Numbers	1m 11s	✓
G	Getting the Real Weight	1m 15s	✓
H	Harvesting Apples	1m 15s	✓
I	Improving the Neighborhood	1m 44s
J	Jane's Party Salad	1m 32s	✓

Practice › Codeforces Solutions › ICPC Masters Mexico LATAM 2023 ›

CF 104393B - BWS Baker Web Service

Now we finally have a clean, precise failure mode: at: This is not an arithmetic bug or logic bug. It is a hard desynchronization of the input parser.

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CF 104393I - Improving the Neighborhood

We are given a small grid representing a neighborhood. Each cell is either a wall, a free traversable tile, a house, a school, or a park.

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CF 104393E - Elisa's Melodies

We are asked to count how many different melodies a constrained “random-walk” system can produce on a circular keyboard. There are $N$ keys arranged in a ring. A melody starts from a fixed key $S$.

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CF 104393H - Harvesting Apples

We are given a row of baskets, each basket having a fixed maximum capacity. Over a sequence of days, apples are harvested and assigned to exactly one basket per day. When apples are added to a basket, the basket can never exceed its capacity.

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CF 104393F - Funny Numbers

We are given a function on integers that repeatedly transforms a number by replacing it with the sum of squares of its digits. Starting from a number $N$, we apply this transformation repeatedly, producing a sequence like $N, F(N), F(F(N)), dots$.

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CF 104393A - Acrobatic Jumping

We are simulating a constrained movement process on a straight line segment of length $N$. Amy starts at position 0 and must eventually reach position $N$.

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CF 104393D - Destroying Asteriods

We are given a vertical grid with many rows and columns, but almost all cells are empty except for one asteroid in each column. Column $i$ contains exactly one asteroid placed at row $ci$.

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CF 104393J - Jane's Party Salad

We are given a fixed pantry of ingredients and a rule that Jane must pick exactly $K$ distinct ingredients to form a salad. Each friend has a personal list of ingredients they refuse to eat.

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CF 104393G - Getting the Real Weight

John is tracking his weight, but the new scale is broken in a very specific way. Instead of showing his true weight, the scale reports the square of his actual weight. He uses two consecutive mornings of measurements.

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CF 104393C - Counting Risk Factors

We are given a long string that represents a linear chemical strip. Each position on the strip is a lowercase letter. Some letters are marked as “risky”. For any substring of the strip, we can count how many risky characters it contains.