How Many Apples Can You Put into the Basket
给一组数, 求怎么装能最多, 最多加起来5000. 因为求最多, 所以肯定先装小的.
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class Solution { public int maxNumberOfApples(int[] arr) { int sum = 0; for(int n : arr) sum += n; Arrays.sort(arr); int i = arr.length - 1; while(sum >= 5000){ sum -= arr[i--]; } return i+1; } } |