Compilare: user.cpp: In function ‘int main()’: user.cpp:83:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pr <coada.size()) ^ user.cpp:54:18: warning: unused variable ‘j’ [-Wunused-variable] int p, k, i, j, xc, yc; ^ user.cpp:107:44: warning: ‘sol3’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << sol1 << " " << sol2 << " " << sol3 << "\n"; ^ user.cpp:107:29: warning: ‘sol2’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << sol1 << " " << sol2 << " " << sol3 << "\n"; ^ user.cpp:107:14: warning: ‘sol1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << sol1 << " " << sol2 << " " << sol3 << "\n"; ^