（用了map） Registration system-白红宇

（用了map） Registration system

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发布时间：2019-06-19

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Registration system

Time Limit:5000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u

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Description

A new e-mail service "Berlandesk" is going to be opened in Berland in the near future. The site administration wants to launch their project as soon as possible, that's why they ask you to help. You're suggested to implement the prototype of site registration system. The system should work on the following principle.

Each time a new user wants to register, he sends to the system a request with his name. If such a name does not exist in the system database, it is inserted into the database, and the user gets the response OK, confirming the successful registration. If the name already exists in the system database, the system makes up a new user name, sends it to the user as a prompt and also inserts the prompt into the database. The new name is formed by the following rule. Numbers, starting with 1, are appended one after another to name (name1,name2, ...), among these numbers the least i is found so that namei does not yet exist in the database.

Input

The first line contains number n (1 ≤ n ≤ 10⁵). The following n lines contain the requests to the system. Each request is a non-empty line, and consists of not more than 32 characters, which are all lowercase Latin letters.

Output

Print n lines, which are system responses to the requests: OK in case of successful registration, or a prompt with a new name, if the requested name is already taken.

Sample Input

Input

4 abacaba acaba abacaba acab

Output

OK OK abacaba1 OK

Input

6 first first second second third third

Output

OK first1 OK second1 OK third1

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              #include 
              #include 
               
                using namespace std;#define N 21000///我也是醉了，map居然有这么大的好处int main(){ int n; while(scanf("%d", &n)!=EOF) { int i; char s[100]; map
                
                 a; for(i=0; i

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转载于:https://www.cnblogs.com/YY56/p/4850838.html

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