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MaximumSubarray.java
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29 lines (28 loc) · 713 Bytes
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/**
* Find the contiguous subarray within an array (containing at least one number)
* which has the largest sum.
*
* For example, given the array [−2,1,−3,4,−1,2,1,−5,4], the contiguous subarray
* [4,−1,2,1] has the largest sum = 6.
*
* click to show more practice.
*
* More practice: If you have figured out the O(n) solution, try coding another
* solution using the divide and conquer approach, which is more subtle.
*/
public class MaximumSubarray {
public int maxSubArray(int[] A) {
int max = Integer.MIN_VALUE;
int sum = 0;
for (int i = 0; i < A.length; i++) {
sum += A[i];
if (sum > max) {
max = sum;
}
if (sum < 0) {
sum = 0;
}
}
return max;
}
}