题解 | 数字收集
数字收集
https://www.nowcoder.com/practice/abb790fcc27641cf833f472eafda535a
input()
nums = [0] * 100001
a = list(map(int, input().split()))
for x in a:
nums[x] += 1
for i in range(1, 100001):
if nums[i] == 0:
print(i, end=" ")
break
for i in range(100000, 0, -1):
if nums[i] == 0:
print(i)
break
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