LeetCode 1855: Maximum Distance Between a Pair of Values Solution
Master LeetCode problem 1855 (Maximum Distance Between a Pair of Values), 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.
1855. Maximum Distance Between a Pair of Values
Problem Explanation
Explanation
To solve this problem, we can iterate through both arrays simultaneously. We start with the first element of both arrays and try to find the maximum valid pair with the largest distance. Since the arrays are non-increasing, we can move to the next element in the array with the larger value to potentially increase the distance. We keep track of the maximum distance found so far and update it whenever we find a valid pair with a larger distance.
The key idea is to use a two-pointer approach where we maintain two pointers, one for each array. We move the pointers based on the given conditions until we reach the end of either array. By doing this, we can find the maximum distance between a pair of values.
- Time complexity: O(m + n) where m and n are the lengths of nums1 and nums2 respectively.
- Space complexity: O(1)
Solution Code
class Solution {
public int maxDistance(int[] nums1, int[] nums2) {
int i = 0, j = 0, maxDistance = 0;
while (i < nums1.length && j < nums2.length) {
if (nums1[i] <= nums2[j]) {
maxDistance = Math.max(maxDistance, j - i);
j++;
} else {
i++;
}
}
return maxDistance;
}
}Try It Yourself
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