/in/foo.cc: In function 'int main()':
/in/foo.cc:38:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i=0;i<=log2(n+1);i++) f[n+1][i]=n+1;dep[n+1]=1;
  ^~~
/in/foo.cc:38:47: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for (int i=0;i<=log2(n+1);i++) f[n+1][i]=n+1;dep[n+1]=1;
                                               ^~~