1141. How Many Apples Can You Put into the Basket

• Difficulty: Easy

• Topics: Greedy

• Similar Questions:

Problem:

You have some apples, where arr[i] is the weight of the i-th apple.  You also have a basket that can carry up to 5000 units of weight.

Return the maximum number of apples you can put in the basket.

Example 1:

Input: arr = [100,200,150,1000]
Output: 4
Explanation: All 4 apples can be carried by the basket since their sum of weights is 1450.

Example 2:

Input: arr = [900,950,800,1000,700,800]
Output: 5
Explanation: The sum of weights of the 6 apples exceeds 5000 so we choose any 5 of them.

Constraints:

• 1 <= arr.length <= 10^3
• 1 <= arr[i] <= 10^3

Solutions:

class Solution {
public:
    int maxNumberOfApples(vector<int>& arr) {
        sort(arr.begin(), arr.end());
        int weight = 0;
        for (int i = 0; i < arr.size(); ++i) {
            weight += arr[i];
            if (weight > 5000)  return i;
        }

        return arr.size();
    }
};