/in/foo.cc: In function 'int main()':
/in/foo.cc:9:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(s[i]=='1')
     ^~
/in/foo.cc:11:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
   cout<<cnt<<endl;
   ^~~~
/in/foo.cc:9:11: warning: iteration 8 invokes undefined behavior [-Waggressive-loop-optimizations]
     if(s[i]=='1')
        ~~~^
/in/foo.cc:8:18: note: within this loop
     for(int i=0;i<=8;i++)
                 ~^~~