EBK DATA STRUCTURES AND ALGORITHMS IN C
4th Edition
ISBN: 9781285415017
Author: DROZDEK
Publisher: YUZU
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Chapter 5, Problem 24E
Program Plan Intro
Backtracking:
- Back tracking is a form of recursion.
- In this method it is possible to backtrack if traversal reaches a node which has no other way from that to find solution.
- It can be used to solve problems like eight queens puzzle and maze problem.
Trace of “putQueen()”:
putQueen(0)
col = 0;
putQueen(1)
col = 0;
col = 1;
col = 2;
putQueen(2)
col = 0;
col = 1;
col = 2;
col = 3;
col = 3;
putQueen(2)
col = 0;
col = 1;
putQueen(3)
col = 0;
col = 1;
col = 2;
col = 3;
col = 2;
col = 3;
col = 1;
putQueen(1)
col = 0;
col = 1;
col = 2;
col = 3;
putQueen(2)
col = 0;
putQueen(3)
col = 0;
col = 1;
col = 2;
.Q..
...Q
Q...
..Q.
col = 3;
col = 1;
col = 2;
col = 3;
col = 2;
putQueen(1)
col = 0;
putQueen(2)
col = 0;
col = 1;
col = 2;
col = 3;
putQueen(3)
col = 0;
col = 1;
..Q.
Q...
...Q
.Q..
col = 2;
col = 3;
col = 1;
col = 2;
col = 3;
col = 3;
putQueen(1)
col = 0;
putQueen(2)
col = 0;
col = 1;
col = 2;
putQueen(3)
col = 0;
col = 1;
col = 2;
col = 3;
col = 3;
col = 1;
putQueen(2)
col = 0;
col = 1;
col = 2;
col = 3;
col = 2;
col = 3;
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Chapter 5 Solutions
EBK DATA STRUCTURES AND ALGORITHMS IN C
Ch. 5 - Prob. 1ECh. 5 - Prob. 2ECh. 5 - Prob. 3ECh. 5 - Prob. 4ECh. 5 - Prob. 5ECh. 5 - Prob. 6ECh. 5 - Prob. 7ECh. 5 - Prob. 8ECh. 5 - Prob. 9ECh. 5 - Prob. 10E
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