#include <bits/stdc++.h>
using namespace std;
char c;
int n;
set <char> st;
int main(){
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> c >> n; st.insert(c);
for (int i = 1; i <= n; i++) {
char s1, s2;
cin >> s1 >> s2;
if (s2 == c) {
c = s1;
st.insert(c);
}
}
cout << c << "\n" << st.size();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
512 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |