Compilare: user.cpp: In function ‘void parc(int)’: user.cpp:23:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i < a[ x ].size() ; i++ ) ^ user.cpp:31:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( j = 0 ; j < a[ x ].size() && ok == 1 ; j++ ) ^ user.cpp: In function ‘void afisare()’: user.cpp:52:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i < sol.size() ; i++ ) ^ user.cpp: In function ‘int main()’: user.cpp:94:15: warning: ‘rad’ may be used uninitialized in this function [-Wmaybe-uninitialized] parc ( rad ); ^