Main.cc: In function ‘int main()’:
Main.cc:6:10: error: expected initializer before ‘==’ token
    6 |     int s==0;
      |          ^~
Main.cc:11:5: error: ‘s’ was not declared in this scope
   11 |     s+=a[i];}
      |     ^
Main.cc:12:11: error: ‘s’ was not declared in this scope
   12 |     cout<<s<<endl;}
      |           ^