-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathsplit-array-largest-sum.cpp
More file actions
35 lines (34 loc) · 880 Bytes
/
split-array-largest-sum.cpp
File metadata and controls
35 lines (34 loc) · 880 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
class Solution {
public:
bool check(vector<int>& nums, int x, int m) {
long long sum = 0;
int cnt = 1;
for (int i = 0; i < nums.size(); i++) {
if (sum + nums[i] > x) {
cnt++;
sum = nums[i];
} else {
sum += nums[i];
}
}
return cnt <= m;
}
int splitArray(vector<int>& nums, int m) {
long long left = 0, right = 0;
for (int i = 0; i < nums.size(); i++) {
right += nums[i];
if (left < nums[i]) {
left = nums[i];
}
}
while (left < right) {
long long mid = (left + right) >> 1;
if (check(nums, mid, m)) {
right = mid;
} else {
left = mid + 1;
}
}
return left;
}
};