algorithm_challenges/src/test/java/algorithm/exercises/RobotGridTest.java at main · edelgadoh/algorithm_challenges · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
package algorithm.exercises;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class RobotGridTest {

    @Test
    void findAllPaths() {
        int[][] grid = {
                {0, 0, 0},
                {0, 0, 0},
                {0, 0, 0}
        };
        RobotGrid robotGrid = new RobotGrid();
        int paths = robotGrid.findPaths(grid);
        System.out.println(paths);
        Assertions.assertEquals(6, paths);
    }

    @Test
    void findAllPathsWithBlockers() {
        int[][] grid = {
                {0, 0, 0},
                {0, 1, 0},
                {0, 0, 0}
        };
        RobotGrid robotGrid = new RobotGrid();
        int paths = robotGrid.findPaths(grid);
        System.out.println(paths);
        Assertions.assertEquals(2, paths);
    }

    @Test
    void findAllPathsWithOtherBlockers() {
        int[][] grid = {
                {0, 0, 1, 0},
                {0, 0, 0, 0},
                {1, 0, 1, 0},
                {0, 0, 0, 0}
        };
        RobotGrid robotGrid = new RobotGrid();
        int paths = robotGrid.findPaths(grid);
        System.out.println(paths);
        Assertions.assertEquals(4, paths);
    }

    @Test
    void findAllPathsWithBigMatrixBlockers() {
        int[][] grid = {
                {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
                {0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
        };
        RobotGrid robotGrid = new RobotGrid();
        int paths = robotGrid.findPaths(grid);
        System.out.println(paths);
        Assertions.assertEquals(625242762, paths);
    }
}