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Calculating the area of a room

#include <stdio.h> int main() { double length = 0.0; double width = 0.0; long feet = 0L; long inches = 0L; const long inches_per_foot = 12L; const double inches_per_yard = 36L; feet = 8; inches = 12; length = (feet*inches_per_foot+inches)/inches_per_yard; feet = 24; inches = 4; width = (feet*inches_per_foot+inches)/inches_per_yard; /* Output the area */ printf("The area of the room is %.2f square yards.\n",length*width); }