QQ Account Management

2653 ワード
C++
QQ Account Management
You are supposed to implement the functions of account "Log in"and "Register"for the most popular instant messager QQ. The most challenging part is that QQ now has more than a billion users.
Input Specification:
Each input file contains one test case. For each case, the first line contains an integer  N  (≤10​5​​) - the total number of queries. Then  N  lines follow, each contains a query in the format  Command QQ_No Password  where  Command  is either  R  (meaning to register a new account, and hence followed by a new account number and a password), or  L  (meaning to log in with an existing account, and hence followed by the account number and the password);  QQ_No  is an integer that is greater than 1000 and no more than 10 digits long; and  Password  is a string with no less than 6 and no more than 16 characters without any space.
Output Specification:
For each test case, print the corresponding message for each query in a line. The messages are:
If a new account is successfully registered, output "Register Successful";
  • If the new registering account number already exists, output "ERROR: Account Number Already Exists";
  • If log in successfully, output "Log in Successful";
  • If the log in account does not exist, output "ERROR: Account Not Exist";
  • If log in with a wrong password, output "ERROR: Wrong Password".

    • Sample Input: 
    5
L 1234567890 [email protected]
R 1234567890 [email protected]
R 1234567890 [email protected]
L 1234567890 myQQ@qq
L 1234567890 [email protected]

    Sample Output: 
    ERROR: Account Not Exist
Register Successful
ERROR: Account Number Already Exists
ERROR: Wrong Password
Log in Successful
    #include 
#include
#include
#include
#include

using namespace std;



map myq;

void judge_nopwd(long long int QQ_No,string password)
{
    string pwd=myq[QQ_No];
    if(pwd==password)
    {
        cout<>n;
    while(n--)
    {
        char Command;
        long long int QQ_No;
        string Password;

        cin>>Command>>QQ_No>>Password;
        if(Command=='L')
        {
            judge_exist_L(QQ_No,Password);
        }
        else if(Command=='R')
        {
            judge_exist_R(QQ_No,Password);
        }
    }
    return 0;
}
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