To solve more complex word search problems, we can extend the basic word search solver implemented using backtracking. One example of an advanced word search problem is to find words in a grid that can be formed by connecting adjacent characters in any direction (horizontal, vertical, or diagonal).
To solve this problem, we can modify the backtracking algorithm to explore all possible directions from each cell in the grid. We can consider each cell as a starting point and perform depth-first search to find words that match the given criteria.
Here's an example implementation of an advanced word search solver using backtracking in C++:
TEXT/X-C++SRC
1#include <iostream>
2#include <vector>
3using namespace std;
4
5bool wordSearchSolver(vector<vector<char>>& grid, string word) {
6 // Implementation of advanced word search solver using backtracking
7
8 // Your code here
9
10 return true; // Placeholder
11}
12
13int main() {
14 // Sample grid representing the word search puzzle
15 vector<vector<char>> grid = {
16 {'A', 'B', 'C'},
17 {'D', 'E', 'F'},
18 {'G', 'H', 'I'}
19 };
20
21 // Sample word to search
22 string word = "ABC";
23
24 // Call the word search solver
25 bool exists = wordSearchSolver(grid, word);
26
27 // Print the result
28 if (exists) {
29 cout << "The word '" << word << "' exists in the grid." << endl;
30 } else {
31 cout << "The word '" << word << "' does not exist in the grid." << endl;
32 }
33
34 return 0;
35}
xxxxxxxxxx
33
}
using namespace std;
bool wordSearchSolver(vector<vector<char>>& grid, string word) {
// Implementation of advanced word search solver using backtracking
// Your code here
return true; // Placeholder
}
int main() {
// Sample grid representing the word search puzzle
vector<vector<char>> grid = {
{'A', 'B', 'C'},
{'D', 'E', 'F'},
{'G', 'H', 'I'}
};
// Sample word to search
string word = "ABC";
// Call the word search solver
bool exists = wordSearchSolver(grid, word);
// Print the result
if (exists) {
cout << "The word '" << word << "' exists in the grid." << endl;
} else {
cout << "The word '" << word << "' does not exist in the grid." << endl;
OUTPUT
:001 > Cmd/Ctrl-Enter to run, Cmd/Ctrl-/ to comment