Compilare: user.cpp: In function ‘int main()’: user.cpp:19:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=strlen(a)+3;i++) ^ user.cpp:22:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(a)) ^ user.cpp:12:22: warning: unused variable ‘d’ [-Wunused-variable] { char a[maxn],c[10],d,p[maxn1]; ^ user.cpp:86:18: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] {cif[i]=cif[i+1]; ^