题解 | 两两配对差值最小
两两配对差值最小
https://www.nowcoder.com/practice/60594521f1db4d75ad78266b0b35cfbb
n = int(input())
arr = list(map(int,input().split()))
arr = sorted(arr)
diff = []
for i in range(len(arr)//2):
diff.append(arr[i] + arr[len(arr) - 1 - i])
print(max(diff) - min(diff))
