/in/foo.cc: In function 'void add(int, int)':
/in/foo.cc:30:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if(g[x][y]) return; g[x][y]=1;
  ^~
/in/foo.cc:30:22: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
  if(g[x][y]) return; g[x][y]=1;
                      ^