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:20:9: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void afisare()’: user.cpp:51:33: 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:93:15: warning: ‘rad’ may be used uninitialized in this function [-Wmaybe-uninitialized] parc ( rad ); ^