Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:9:27: error: ‘strlen’ was not declared in this scope int len=strlen(str); ^ user.cpp:11:31: error: invalid types ‘int[int]’ for array subscript if(len>1) c1=str[len-2]; ^ user.cpp:13:29: error: invalid types ‘int[int]’ for array subscript if(len) c2=str[len-1]; ^ user.cpp:16:17: error: ‘a’ was not declared in this scope else s+=a[c2-'0']; ^