Eroare de compilare: main.cpp: In function 'bool ok(char)': main.cpp:20:9: warning: unused variable 'vf' [-Wunused-variable] 20 | int vf=st.size()-1; //varful stivei | ^~ main.cpp: In function 'int main()': main.cpp:47:25: error: expected ';' before 'for' 47 | in.getline(s, 1000000) | ^ | ; 48 | for(int i=0; i<n; i++) | ~~~ main.cpp:48:16: error: 'i' was not declared in this scope 48 | for(int i=0; i<n; i++) | ^ Non zero exit status: 1