Given an array which consists of non-negative integers and an integerm, you can split the array intomnon-empty continuous subarrays. Write an algorithm to minimize the largest sum among thesemsubarrays.
Note:
Ifnis the length of array, assume the following constraints are satisfied:
Examples:
Input:
nums
= [7,2,5,10,8]
m
= 2
Output:
18
Explanation:
There are four ways to split
nums
into two subarrays.
The best way is to split it into
[7,2,5]
and
[10,8]
,
where the largest sum among the two subarrays is only 18.
class Solution {
public int splitArray(int[] nums, int m) {
int n = nums.length;
int[][] dp = new int[n + 1][m + 1];
int[] sums = new int[n + 1];
for (int i = 0; i <= n; i++){
for (int j = 0; j <= m; j++){
dp[i][j] = Integer.MAX_VALUE;
}
}
for (int i = 0; i < n; i++){
sums[i + 1] = sums[i] + nums[i];
}
dp[0][0] = 0;
for (int i = 1; i <= n; i++){
for (int j = 1; j <= m; j++){
for (int k = 0; k < i; k++){
dp[i][j] = Math.min(dp[i][j], Math.max(dp[k][j - 1], sums[i] - sums[k]));
}
}
}
return dp[n][m];
}
}