题目链接：http://acm.timus.ru/problem.aspx?space=1&num=2002
| input | output |
|---|---|
6 register vasya 12345 login vasya 1234 login vasya 12345 login anakin C-3PO logout vasya logout vasya |
success: new user added fail: incorrect password success: user logged in fail: no such user success: user logged out fail: already logged out |
代码如下：
#include <cstdio>
#include <cstring>
#include <map>
#include <algorithm>
#include <iostream>
#include <string>
using namespace std;
map<string,string>m1, m2;
int main()
{
int n;
string s1, s2, s3;
while(~scanf("%d",&n))
{
m1.clear();
m2.clear();
for(int i = 0; i < n; i++)
{
cin >>s1;
if(s1 == "register")
{
cin >>s2>>s3;
if(m1.find(s2) == m1.end())
{
m1.insert(make_pair(s2, s3));
cout<<"success: new user added"<<endl;
}
else
{
cout<<"fail: user already exists"<<endl;
}
}
else if(s1 == "login")
{
cin >>s2>>s3;
// m2.insert(make_pair(s2, s3));
map<string, string>::iterator it;
if(m1.find(s2) != m1.end())//已注册
{
it = m1.find(s2);
if(it->second != s3)
{
cout<<"fail: incorrect password"<<endl;
continue;
}
else if(m2.find(s2) != m2.end())//已登陆
{
cout<<"fail: already logged in"<<endl;
}
else if(it->second == s3)
{
m2.insert(make_pair(s2, s3));
cout<<"success: user logged in"<<endl;
}
}
else//未注册
{
cout<<"fail: no such user"<<endl;
}
}
else if(s1 == "logout")
{
cin >>s2;
if(m1.find(s2) == m1.end())
{
cout<<"fail: no such user"<<endl;
}
else if(m2.find(s2) == m2.end())
{
cout<<"fail: already logged out"<<endl;
}
else
{
map<string, string>::iterator it;
it = m2.find(s2);
m2.erase(it);
cout<<"success: user logged out"<<endl;
}
}
}
}
return 0;
}URAL 2002. Test Task（登陆模拟 map ）
原文：http://blog.csdn.net/u012860063/article/details/43739801