
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
1a.
1B.explain the logic of why this code produces this output
#include <stdio.h>
main( )
{int a=3,b,d=12;
float c,f=7.2;
b=a++ * 2;
printf("%d %d\n",a,b);
b=++a *2;
printf("%d %d\n",a,b);
c = f+d/10 ;
f += d%8;
printf("%f %f\n",c,f);
}
output:
4 6
5 10
8.200000 11.200000
1B.)explain the logic of this problem
Write the necessary preprocessor macro(s) to convert from radians to degrees.
#define PI 3.141592653589793238462643383279502884197
#define rtd(x) (180.0*(x)/PI)
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