LeetCode 2562: Find the Array Concatenation Value Solution
Master LeetCode problem 2562 (Find the Array Concatenation Value), 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.
2562. Find the Array Concatenation Value
Problem Explanation
Explanation:
To solve this problem, we can use a greedy approach. We repeatedly find the first and last elements of the array, concatenate them, add the result to the total concatenation value, and remove these elements from the array. We continue this process until the array becomes empty.
Time Complexity:
The time complexity of this approach is O(N^2), where N is the number of elements in the input array.
Space Complexity:
The space complexity is O(N) for storing the input array.
Solution Code
class Solution {
public int getConcatenationValue(int[] nums) {
int concatValue = 0;
while (nums.length > 1) {
concatValue += Integer.parseInt(nums[0] + "" + nums[nums.length - 1]);
nums = Arrays.copyOfRange(nums, 1, nums.length - 1);
}
if (nums.length == 1) {
concatValue += nums[0];
}
return concatValue;
}
}Try It Yourself
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