LeetCode 3024: Type of Triangle Solution
Master LeetCode problem 3024 (Type of Triangle), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
Problem Explanation
Explanation
To determine the type of triangle that can be formed using the given array of side lengths, we need to check the conditions for equilateral, isosceles, and scalene triangles. We first need to validate whether the sides can form a triangle based on the triangle inequality theorem. Then we check the side lengths to determine the type of triangle.
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Validate if sides can form a triangle:
- Check if the sum of any two sides is greater than the third side.
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Determine the type of triangle:
- Equilateral: All sides are equal.
- Isosceles: Two sides are equal.
- Scalene: All sides are different.
Solution Code
class Solution {
public String typeOfTriangle(int[] nums) {
Arrays.sort(nums);
if (nums[0] + nums[1] > nums[2]) {
if (nums[0] == nums[1] && nums[1] == nums[2]) {
return "equilateral";
} else if (nums[0] == nums[1] || nums[1] == nums[2]) {
return "isosceles";
} else {
return "scalene";
}
}
return "none";
}
}Try It Yourself
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