#include <bits/stdc++.h>
#define pii pair<int,int>
#define ft first
#define sd second
using namespace std;
typedef long long ll;
const int N = 1000100;
const ll OO = 1e18;
char st;
int n, ans = 0;
bool mrk[26];
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
// freopen("in.txt","r",stdin);
cin >> st >> n;
mrk[st - 'A'] = 1;
for (int i = 0; i < n; i++){
char c1, c2; cin >> c1 >> c2;
if (st == c2){
mrk[c1 - 'A'] = 1;
st = c1;
}
}
cout << st << '\n';
for (int i = 0; i < 26; i++)
ans += mrk[i];
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |