Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:22:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(s)-1;i++) ^ user.cpp:19:17: warning: unused variable ‘L’ [-Wunused-variable] int k=0,L=strlen(s),nr=0; ^ user.cpp:19:29: warning: unused variable ‘nr’ [-Wunused-variable] int k=0,L=strlen(s),nr=0; ^ user.cpp:47:1: error: expected ‘}’ at end of input } ^