Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:24:18: error: ‘k’ was not declared in this scope for (k = j+1; k <= n; ++k) { ^ user.cpp:7:21: warning: unused variable ‘st’ [-Wunused-variable] int n, x, i, j, st, dr, m; ^ user.cpp:7:25: warning: unused variable ‘dr’ [-Wunused-variable] int n, x, i, j, st, dr, m; ^ user.cpp:7:29: warning: unused variable ‘m’ [-Wunused-variable] int n, x, i, j, st, dr, m; ^