A second look at your code doesn't show serious error in the SW, so time to scrutinize the HW. Can you make a drawing or photo of how you connected the LM35 and lightsensor to the Arduino?
A second look at your code doesn't show serious error in the SW, so time to scrutinize the HW. Can you make a drawing or photo of how you connected the LM35 and lightsensor to the Arduino?