Blog

Given an array of ints, return true if the value 3 appears in the array exactly 3 times, and no 3’s are next to each other.





Following are the test cases

Test cases Result Status
haveThree({12,3,4,3,88,3}) true OK
haveThree({22,3,3,3,17,3}) false OK
haveThree({3,4,3,6,3,7}) true OK

Java solution

package test;

public class Program20 {
	public static void main(String[] args) {
		// 3, 1, 3, 1, 3
		int a[] = {3,4,3,6,3,7};
		Program20.haveThree(a);
	}

	public static boolean haveThree(int[] nums) {
		for (int i = 1; i < nums.length-1; i++) {
			if (nums[i] == 3 && nums[i-1] != 3 && nums[i+1] != 3) {
				return true;
			}
		}
		return false;
	}
}




Post Views: 2,589

Related posts:

  1. Given an array of ints, return true if the sum of all the 2’s in the array is exactly 8.
  2. Given an array of ints, return true if one of the first 4 elements in the array is a 9. The array length will be greater than 4.
  3. Return true if the array contains, somewhere, three increasing adjacent numbers like …. 4, 5, 6, … or 23, 24, 25.
  4. Pass an int array and an int and do a search of the second parameter in the first, and return true/false.
  5. Return true if the given string contains 1 or 3 ‘e’ chars. Otherwise return false.
  6. Return true if the given non-negative number is a multiple of 3 or a multiple of 5
  7. Pass two ints as parameter and return the sum of numbers.
  8. Given an array of ‘N’ elements .Return the sum of all array elements
  9. Given a string, return a new string where the first and last chars have been exchanged
  10. Given a string of even length, return the first half. So the string “WooHoo” yields “Woo”.

Bushan Sirgur

Hey guys, I am Bushan Sirgur from Banglore, India. Currently, I am working as an Associate project in an IT company.

Leave a Reply