A11239. Polycarp's phone book
编程题
普及/提高-
知识点
题目描述
There are $n$ phone numbers in Polycarp's contacts on his phone. Each number is a 9-digit integer, starting with a digit different from $0$ . All the numbers are distinct.
There is the latest version of Berdroid OS installed on Polycarp's phone. If some number is entered, is shows up all the numbers in the contacts for which there is a substring equal to the entered sequence of digits. For example, is there are three phone numbers in Polycarp's contacts: $123456789$ , $100000000$ and $100123456$ , then:
- if he enters $00$ two numbers will show up: $100000000$ and $100123456$ ,
- if he enters $123$ two numbers will show up $123456789$ and $100123456$ ,
- if he enters $01$ there will be only one number $100123456$ .
For each of the phone numbers in Polycarp's contacts, find the minimum in length sequence of digits such that if Polycarp enters this sequence, Berdroid shows this only phone number.
There is the latest version of Berdroid OS installed on Polycarp's phone. If some number is entered, is shows up all the numbers in the contacts for which there is a substring equal to the entered sequence of digits. For example, is there are three phone numbers in Polycarp's contacts: $123456789$ , $100000000$ and $100123456$ , then:
- if he enters $00$ two numbers will show up: $100000000$ and $100123456$ ,
- if he enters $123$ two numbers will show up $123456789$ and $100123456$ ,
- if he enters $01$ there will be only one number $100123456$ .
For each of the phone numbers in Polycarp's contacts, find the minimum in length sequence of digits such that if Polycarp enters this sequence, Berdroid shows this only phone number.
输入格式
The first line contains single integer $n$ ( $1<=n<=70000$ ) — the total number of phone contacts in Polycarp's contacts.
The phone numbers follow, one in each line. Each number is a positive 9-digit integer starting with a digit from $1$ to $9$ . All the numbers are distinct.
The phone numbers follow, one in each line. Each number is a positive 9-digit integer starting with a digit from $1$ to $9$ . All the numbers are distinct.
输出格式
Print exactly $n$ lines: the $i$ -th of them should contain the shortest non-empty sequence of digits, such that if Polycarp enters it, the Berdroid OS shows up only the $i$ -th number from the contacts. If there are several such sequences, print any of them.
输入输出样例
输入 #1
3 123456789 100000000 100123456
输出 #1
9 000 01
输入 #2
4 123456789 193456789 134567819 934567891
输出 #2
2 193 81 91