This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
int cnt = 0;
/// A - bus, T - train
for(int i = 0;i < n;++i){
int u, v;
char c;
cin >> u >> v >> c;
cnt += (c == 'A');
}
if(cnt == 0){
cout << n << '\n';
}
else{
cout << 0 << '\n';
}
}
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