1*bea39c54SYuhao Gu #include "header.h" 2*bea39c54SYuhao Gu main()3*bea39c54SYuhao Guint main() { 4*bea39c54SYuhao Gu int a = 3; 5*bea39c54SYuhao Gu int b = 4; 6*bea39c54SYuhao Gu int c = c = add(a, b); 7*bea39c54SYuhao Gu int d = mul(a, b); 8*bea39c54SYuhao Gu return equal(a, sub(c, b)) - equal(a, div(d, b)); 9*bea39c54SYuhao Gu } 10