Compilare: user.cpp: In function ‘void delet(int)’: user.cpp:13:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (n=i; n<=strlen(s); n++){ ^ user.cpp: In function ‘int check()’: user.cpp:20:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void p2()’: user.cpp:42:6: warning: statement has no effect [-Wunused-value] 1; ^