35 lines
778 B
C++
35 lines
778 B
C++
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
int main() {
|
|
//输入+输出重定向
|
|
//freopen("../x.in", "r", stdin);
|
|
//freopen("../x.out", "w", stdout);
|
|
|
|
string s;
|
|
getline(cin, s);
|
|
stack<char> st;
|
|
for (int i = 0; i < s.size(); ++i) {
|
|
if (s[i] != '@' && s[i] != '#') {
|
|
st.push(s[i]);
|
|
} else if (s[i] == '@') {
|
|
while (!st.empty()) st.pop();
|
|
} else if (s[i] == '#') {
|
|
//删除一个
|
|
st.pop();
|
|
}
|
|
}
|
|
string result = "";
|
|
//输出结果
|
|
while (!st.empty()) {
|
|
result = st.top() + result;
|
|
st.pop();
|
|
}
|
|
cout << result << endl;
|
|
//关闭文件
|
|
//fclose(stdin);
|
|
//fclose(stdout);
|
|
return 0;
|
|
}
|