#include <stdio.h>int main(){    int i1, i2;	/* two random integers */    i1 = 4;    i2 = 2;    /* Nice way of writing the conditional */    if ((i1 != 0) && (i2 != 0))	printf("Both are not zero\n");    /* Shorthand way of doing the same thing */    /* Correct C code, but rotten style */    if (i1 && i2)	printf("Both are not zero\n");    /* Incorrect use of bitwise and resulting in an error */    if (i1 & i2)	printf("Both are not zero\n");    return (0);}