#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int MX=200010, inf=2e9;
ll n, m;
void NOPE(){
cout<<-1;
exit(0);
}
int main(){
ios::sync_with_stdio(0); cin.tie(0);
cin>>n>>m;
ll mn=0, sum=0;
char S[MX]; ll k;
for(int i=1; i<=m; i++){
cin>>(S+1)>>k;
ll now=0, low=0;
for(int i=1; S[i]!=0; i++){
now+=(S[i]=='M' ? 1 : -1);
low=min(low, now);
}
mn=min({mn, sum+low, sum+low+now*(k-1)});
sum+=now*k;
}
if(sum>0) NOPE();
cout<<min(0LL, sum-1-mn);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |