题解 | 灵异背包？
灵异背包？
https://www.nowcoder.com/practice/812bcedbbe244c9b86e459a244af5ddf
n = int(input())
a = list(map(int,input().split()))
s = sum(a)#先计算数组的和
if s%2==1:#如果数组的和为奇数，则删除当前数组中最小的奇数
for c in sorted(a):
if c%2==1:
s -= c
break
print(s)
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