I have an overstay of 1 day at Cambodian immigration since i missed my flight to Bangkok as i reached late so there wouldn't be any problem at the Bangkok's immigration counter, right?
TLDR : Answer Summary
The consensus among commenters is that a 1-day overstay in Cambodia is unlikely to cause any problems at Thai immigration. Most believe that Thai immigration officers will not be concerned about minor overstays from another country, particularly one day.