Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 23574 Accepted Submission(s): 8907



#include<cstdio>
#include<cstring>
#include<queue>
#include<stack>
#include<algorithm>
using namespace std;
char in[12];
char out[12];
int n;
void solve()
{
queue<char>Q;//火车出站序列
queue<int>ans;//进出顺序,1表示in,0表示out
stack<char>S;//火车入栈序列
for(int i=0; i<n; ++i)
Q.push(out[i]);
for(int i=0; i<n; i++){
if(!S.empty()&&S.top()==Q.front()){//wa了一次在这里,没有考虑到例子5 14325 13245
Q.pop();S.pop();
ans.push(0);
i--;//由于是用前一个和Q.front()比较,所以是s[i]先不入栈
}
else if(in[i]==Q.front()){
Q.pop();
ans.push(1);
ans.push(0);
}
else{
ans.push(1);
S.push(in[i]);
}
}
while(!S.empty()&&!Q.empty()){
if(S.top()==Q.front()){
S.pop();Q.pop();
ans.push(0);
}
else break;
}
while(!S.empty()){
if(S.top()==Q.front()){
ans.push(0);
S.pop();Q.pop();
}
else break;
}
if(S.empty()){
printf("Yes.\n");
while(!ans.empty()){
if(ans.front()) printf("in\n");
else printf("out\n");
ans.pop();
}
printf("FINISH\n");
}
else printf("No.\nFINISH\n");
}
int main()
{
while(~scanf("%d%s%s",&n,in,out))
solve();
return 0;
}
FINISH
原文:http://www.cnblogs.com/orchidzjl/p/4363525.html