/in/foo.cc: In function 'int main()':
/in/foo.cc:19:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
             if(a[j]<a[i])
             ^~
/in/foo.cc:21:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
                 ans=max(ans,f[i]);
                 ^~~