Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:23: error: expected unqualified-id before ‘;’ token int i,j,sum=0,; ^ user.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(s)-1;i++){ ~^~~~~~~~~~~~~ user.cpp:15:37: error: lvalue required as decrement operand if(s[i]==s[strlen(s)--])sum++; ^~ user.cpp:10:15: warning: unused variable ‘j’ [-Wunused-variable] int i,j,sum=0,; ^