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enum enum enum enum	{ off, on }; color { red, blue, { BOTTOM = 50, TOP grades ( F = 59, D  = 80, A	white, green } ; = 100, OVER } ; = 60,  = 70, = 90 );	off == 0,on == 1color    OVER == 101  

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const int N = 100 double w[N]const int busstops[5] = ( 23, 44, 57, 59, 83 } ;	N    [  ]   busstops [i]  

        
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int sqrt(double)   //sqrt ,   