2587_RearrangeArraytoMaximizePrefixScore

---

categories: leetcode comments: false tags:

• greedy
• sorting
• Prefix sum title: 2587. Rearrange Array to Maximize Prefix Score

---

problem

solution

class Solution {
public:
    int maxScore(vector<int>& nums) {
        sort(nums.begin(), nums.end(), greater<int>());
        int count = (nums.front()>0)?1:0;
        long long cur = nums[0];
        for(int i=0;i<nums.size() ; ++i) {
            if(i==0) continue;
            cur += nums[i];
            if(cur > 0) count++;
            else break;
        }
        return count ; 
    }
};

analysis

• time complexity O(nlogn)
• space complexity O(1)