winter come during contest job design standard heater fix warm radius warm housesEvery house warm long house heater warm radius range give position house heater horizontal line return minimum radius standard heater heater cover housesNotice heater follow radius standard warm radius Example 1input house 123 heater 2output 1explanation the heater place position 2 use radius 1 standard house warmedexample 2input house 1234 heater 14output 1explanation the heater place position 1 4 we need use radius 1 standard house warmedexample 3input house 15 heater 2output 3 Constraints1 houseslength heaterslength 3 1041 housesi heatersi 109