Compilare: user.cpp: In function ‘int main()’: user.cpp:44:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.size(); i++) { ^ user.cpp: In function ‘void Det(int, int, int, int)’: user.cpp:33:22: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] Det(l, c, sl, sc); ^ user.cpp:33:22: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized]