Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:87:36: error: expected ‘)’ before ‘!’ token if(a+1<=m*n and a+1>=0 !volt[a+1] and t[a+1]!=-1) ^ user.cpp:93:36: error: expected ‘)’ before ‘!’ token if(a-1<=m*n and a-1>=0 !volt[a-1] and t[a-1]!=-1) ^ user.cpp:99:36: error: expected ‘)’ before ‘!’ token if(a-n<=m*n and a-n>=0 !volt[a-n] and t[a-n]!=-1) ^ user.cpp:105:36: error: expected ‘)’ before ‘!’ token if(a+n<=m*n and a+n>=0 !volt[a+n] and t[a+n]!=-1) ^