Compilare: user.cpp: In function ‘int* gS(int*, int&)’: user.cpp:105:23: warning: operation on ‘t’ may be undefined [-Wsequence-point] v[t++] = Es(v + t); ^ user.cpp: In function ‘int kthelement(int*, int, int, int)’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int Es(int*)’: user.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type] } ^