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Fix 3357 solution #3805

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feat(leetcode): add solutions for problem 3357 in C++, Java, and Python
yanglbme authored and rajaabdullah833 committed Nov 22, 2024

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This commit was created on GitHub.com and signed with GitHub’s verified signature.
commit d760370e038303e0d193e0d0032ad8e3c89ee99e
Original file line number Diff line number Diff line change
@@ -0,0 +1,53 @@
class Solution {
public:
int minimizeMaxDifference(vector<int>& nums) {
int n = nums.size();
int minVal = INT_MAX, maxVal = INT_MIN;

for (int i = 0; i < n; ++i) {
if (nums[i] != -1) {
minVal = min(minVal, nums[i]);
maxVal = max(maxVal, nums[i]);
}
}

if (minVal == INT_MAX) {
return 0;
}

auto isPossible = [&](int maxDiff) -> bool {
int prev = -1;

for (int i = 0; i < n; ++i) {
if (nums[i] != -1) {
prev = nums[i];
} else {
if (prev != -1) {
if (abs(prev - minVal) > maxDiff && abs(prev - maxVal) > maxDiff) {
return false;
}
prev = (abs(prev - minVal) <= abs(prev - maxVal)) ? minVal : maxVal;
} else {
prev = minVal;
}
}
}

return true;
};

int left = 0, right = maxVal - minVal, result = right;

while (left <= right) {
int mid = left + (right - left) / 2;
if (isPossible(mid)) {
result = mid;
right = mid - 1;
} else {
left = mid + 1;
}
}

return result;
}
};
Original file line number Diff line number Diff line change
@@ -0,0 +1,51 @@
public class Solution {

public int minimizeMaxDiff(int[] nums) {
int left = 0, right = (int) 1e9, result = (int) 1e9;

while (left <= right) {
int mid = left + (right - left) / 2;
if (isValid(nums, mid)) {
result = mid;
right = mid - 1;
} else {
left = mid + 1;
}
}

return result;
}

private boolean isValid(int[] nums, int maxDiff) {
int prev = nums[0] != -1 ? nums[0] : -1;

for (int i = 1; i < nums.length; i++) {
int current = nums[i];
if (current == -1) {
if (prev != -1) {
current = Math.max(prev - maxDiff, 1);
} else {
current = 1;
}
}
if (prev != -1 && Math.abs(current - prev) > maxDiff) {
return false;
}
prev = current;
}
return true;
}

public static void main(String[] args) {
Solution solver = new Solution();

int[] nums1 = {1, 2, -1, 10, 8};
System.out.println(solver.minimizeMaxDiff(nums1));

int[] nums2 = {-1, -1, -1};
System.out.println(solver.minimizeMaxDiff(nums2));

int[] nums3 = {-1, 10, -1, 8};
System.out.println(solver.minimizeMaxDiff(nums3));
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
class Solution:
def minimizeMaxDifference(self, nums: List[int], k: int) -> int:
nums.sort()
l, r = 0, nums[-1] - nums[0]

def can_minimize(target):
ops = 0
for i in range(1, len(nums)):
if nums[i] - nums[i - 1] > target:
ops += (nums[i] - nums[i - 1] - 1) // target
if ops > k:
return False
return True

while l < r:
mid = (l + r) // 2
if can_minimize(mid):
r = mid
else:
l = mid + 1
return l