代码如下:
cpp
#include <bits/stdc++.h>
using namespace std;
int main() {
int a, ans = 0;
cin >> a;
for (int i = 0; i < a; i++) {
string num;
cin >> num;
char first = num[0];
if (first != 'A' && first != 'B' && first != 'C' &&
first != 'D' && first != 'E' && first != 'F' &&
first != 'G' && first != 'R' && first != 'S' &&
first != 'T') {
ans++;
}
}
cout << ans;
return 0;
}
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