Computer Science There is an n × n grid of squares. Each square is either special, or has a positive integer cost assigned to it. No square on the border of the grid is special. A set of squares S is said to be good if it does not contain any special squares and, starting from any special square, you cannot reach a square on the border of the grid by performing up, down, left and right moves without entering a cell belonging to S. 5 3 4 9 4 X 3 6 1 9 X 4 1 2 3 5 - Design an algorithm which receives an arbitrary n × n grid, runs in time poly- nomial in n and determines a good set of squares with minimum total cost.
Computer Science There is an n × n grid of squares. Each square is either special, or has a positive integer cost assigned to it. No square on the border of the grid is special. A set of squares S is said to be good if it does not contain any special squares and, starting from any special square, you cannot reach a square on the border of the grid by performing up, down, left and right moves without entering a cell belonging to S. 5 3 4 9 4 X 3 6 1 9 X 4 1 2 3 5 - Design an algorithm which receives an arbitrary n × n grid, runs in time poly- nomial in n and determines a good set of squares with minimum total cost.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Computer Science
There is an n × n grid of squares. Each square is either special, or has a positive integer cost
assigned to it. No square on the border of the grid is special.
A set of squares S is said to be good if it does not contain any special squares and, starting from
any special square, you cannot reach a square on the border of the grid by performing up, down,
left and right moves without entering a cell belonging to S.
| 5 | 3 | 4 | 9 |
| 4 | X | 3 | 6 |
| 1 | 9 | X | 4 |
| 1 | 2 | 3 | 5 |
- Design an
nomial in n and determines a good set of squares with minimum total cost.
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