algorithm/Java
1
0
Fork 0
mirror of https://github.com/TheAlgorithms/Java.git synced 2025-07-27 22:43:30 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add Binary Search in 2D Array (#3240)

Browse Source
This commit is contained in:
Shashwat Gupta
2022-09-03 12:01:55 +05:30
committed by GitHub
parent 9e37775506
commit 6cfb628487
2 changed files with 191 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

117
src/test/java/com/thealgorithms/searches/BinarySearch2dArrayTest.java Normal file
View File

@ -0,0 +1,117 @@
package com.thealgorithms.searches;
import org.junit.jupiter.api.Test;
import java.util.*;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class BinarySearch2dArrayTest {
@Test
// valid test case
public void BinarySearch2dArrayTestMiddle() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 6;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {1,1};
System.out.println(Arrays.toString(ans));
assertEquals(1, ans[0]);
assertEquals(1, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestMiddleSide() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 8;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {1,3};
System.out.println(Arrays.toString(ans));
assertEquals(1, ans[0]);
assertEquals(3, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestUpper() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 2;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {0,1};
System.out.println(Arrays.toString(ans));
assertEquals(0, ans[0]);
assertEquals(1, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestUpperSide() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 1;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {0,0};
System.out.println(Arrays.toString(ans));
assertEquals(0, ans[0]);
assertEquals(0, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestLower() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 10;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {2,1};
System.out.println(Arrays.toString(ans));
assertEquals(2, ans[0]);
assertEquals(1, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestLowerSide() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 11;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {2,2};
System.out.println(Arrays.toString(ans));
assertEquals(2, ans[0]);
assertEquals(2, ans[1]);
}
@Test
// valid test case
public void BinarySearch2dArrayTestNotFound() {
int[][] arr = { {1, 2, 3, 4},
{5, 6, 7, 8},
{9,10,11,12}};
int target = 101;
int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
int[] expected = {-1,-1};
System.out.println(Arrays.toString(ans));
assertEquals(-1, ans[0]);
assertEquals(-1, ans[1]);
}
}