hdu 1022 Train Problem I
2017-07-24 18:29
274 查看
As the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train(because the trains in the Ignatius Train Station is the fastest all over the world ^v^). But here comesa problem, there is only one railway where all the trains stop. So all the trains come in from one side and get out from the other side. For this problem, if train A gets into the railway first, and then train B gets into the railway before train A leaves,train A can't leave until train B leaves. The pictures below figure out the problem. Now the problem for you is, there are at most 9 trains in the station, all the trains has an ID(numbered from 1 to n), the trains get into the railway in an order O1, yourtask is to determine whether the trains can get out in an order O2.
InputThe input contains several test cases. Each test case consists of an integer, the number of trains, and two strings, the order of the trains come in:O1, and the order of the trains leave:O2. The input is terminated by the end of file. More detailsin the Sample Input. OutputThe output contains a string "No." if you can't exchange O2 to O1, or you should output a line contains "Yes.", and then output your way in exchanging the order(you should output "in" for a train getting into the railway, and "out" for a traingetting out of the railway). Print a line contains "FINISH" after each test case. More details in the Sample Output. Sample Input
3 123 321 3 123 312Sample Output
Yes. in in in out out out FINISH No. FINISH For the first Sample Input, we let train 1 get in, then train 2 and train 3. So now train 3 is at the top of the railway, so train 3 can leave first, then train 2 and train 1. In the second Sample input, we should let train 3 leave first, so we have to let train 1 get in, then train 2 and train 3. Now we can let train 3 leave. But after that we can't let train 1 leave before train 2, because train 2 is at the top of the railway at the moment. So we output "No.".Hint
Hint
题意:
这个就是模拟栈,看通过栈的操作最后是否能符合要求
代码:
#include<iostream>#include<stack>#include<cstring>using namespace std;char n1[10];char n2[10];int help[20];int main(){int len;while(cin>>len){memset(help,0,sizeof(help));stack<char> sstack;cin>>n1;cin>>n2;int j = 0;int k = 0;int i = 0;int t = len;while(t--){if(sstack.empty()){//cout<<"here1"<<endl;help[k] = 1;k++;sstack.push(n1[i]);i++;}while((!sstack.empty())&&(sstack.top()==n2[j])){//cout<<"here2"<<endl;help[k] = 0;k++;sstack.pop();j++;}while((!sstack.empty()&&sstack.top()!=n2[j])){//cout<<"here3"<<endl;help[k] = 1;k++;sstack.push(n1[i]);i++;}}if(sstack.size()==0){cout<<"Yes."<<endl;for(int i = 0;i<2*len;i++){if(help[i]==1)cout<<"in"<<endl;else cout<<"out"<<endl;}cout<<"FINISH"<<endl;}else{cout<<"No."<<endl;cout<<"FINISH"<<endl;}}}
相关文章推荐
- HDU 1022 Train Problem I 栈的模拟
- hdu 1022 Train Problem I 【栈入门经典】
- hdu-1022-Train Problem I
- HDU 1022 Train Problem I
- HDU 1022 Train Problem I
- HDU 1022 Train Problem I (STL 栈模拟)
- hdu 1022 Train Problem I(模拟+栈)
- HDU-1022-Train Problem I
- hdu1022 Train Problem I
- HDU1022 - Train Problem I (模拟)
- HDU 1022 Train Problem I
- hdu 1022 Train Problem I_栈的应用经典例题
- [ACM] hdu 1022 Train Problem I(栈的使用)
- hdu 1022 Train Problem I 【栈入门经典】
- HDU 1022 Train Problem I 附详细思路
- hdu 1022 Train Problem I
- hdu-1022 Train Problem I (栈的简单应用)
- HDU--1022 -- Train Problem I [线性表之栈]
- HDU 1022 Train Problem I
- hdu1022 栈的模拟(Train Problem I)