练11.2 间隔输出
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说明
写一函数,输入一个四位数字,要求输出这四个数字字符,但每两个数字间有一个空格。如输入 ,应输出 1 9 9 0。
输入格式
一个四位数。
输出格式
增加空格输出。
样例
19901 9 9 0
2024022002-day2
- Status
 - Done
 - Rule
 - ACM/ICPC
 - Problem
 - 8
 - Start at
 - 2024-2-20 17:00
 - End at
 - 2024-2-20 18:10
 - Duration
 - 1.2 hour(s)
 - Host
 - Partic.
 - 4