Compilare: user.cpp: In function ‘int zed(unsigned int*, unsigned int, unsigned int, unsigned int)’: user.cpp:15:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:19:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;++i) ^ user.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;++i) ^ user.cpp:23:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int a=1;a<=n-i+1;++a) ^