Compilare: user.cpp: In function ‘int main()’: user.cpp:52:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(s);i++) ^ user.cpp:56:13: warning: ‘first’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(first) ^ user.cpp:158:37: warning: ‘p2’ may be used uninitialized in this function [-Wmaybe-uninitialized] su+=v2[((p2+1)/2)-1]; ^ user.cpp:50:12: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] int mx,p,p2,su=0,part; ^