Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:12:40: error: ‘strlen’ was not declared in this scope if(L!='-') s[strlen(s)]=L; ^ user.cpp:13:34: error: ‘strlen’ was not declared in this scope else s[strlen(s)-1]=0; ^ user.cpp:14:29: error: ‘strlen’ was not declared in this scope p=strlen(s);nr=0; ^ user.cpp:19:60: error: ‘strchr’ was not declared in this scope k=strlen(a[w])-strlen(strchr(a[w]+k,P)); ^