LeetCode 624: Maximum Distance in Arrays Solution
Master LeetCode problem 624 (Maximum Distance in Arrays), a medium 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 find the maximum distance between two numbers, we need to consider the minimum and maximum values from the arrays. We can do this by keeping track of the minimum and maximum values encountered so far in the arrays as we iterate through them. At each step, we update the maximum distance by comparing it with the absolute difference between the current element and the current minimum or maximum value.
Solution Code
class Solution {
public int maxDistance(List<List<Integer>> arrays) {
int result = 0;
int minVal = arrays.get(0).get(0);
int maxVal = arrays.get(0).get(arrays.get(0).size() - 1);
for (int i = 1; i < arrays.size(); i++) {
List<Integer> currentArray = arrays.get(i);
int currentMin = currentArray.get(0);
int currentMax = currentArray.get(currentArray.size() - 1);
result = Math.max(result, Math.abs(currentMax - minVal));
result = Math.max(result, Math.abs(maxVal - currentMin));
minVal = Math.min(minVal, currentMin);
maxVal = Math.max(maxVal, currentMax);
}
return result;
}
}Try It Yourself
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