Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:41:5: error: ‘st’ was not declared in this scope st = 1; ^ user.cpp:42:5: error: ‘dr’ was not declared in this scope dr = n; ^ user.cpp:43:5: error: ‘mid’ was not declared in this scope mid = (st + dr)/2; ^ user.cpp:45:26: error: ‘x’ was not declared in this scope if (M[mid].dr >= x.dr) { ^