INTERVIEW QUESTIONS C OPERATORS IN C DETAILS

Question: Assign a=56;how to separate that number(ie:5,6) and multiply(ie:5*6) using bitwise operator?

Answer: int b,c;
b=a/10;
c=a%10;
cout<<b<<c;
a=b*c;
cout<<a;

int b,c;
b=a/10;
c=a%10;
cout<<b<<c;
a=b*c;
cout<<a; Source: CoolInterview.com

int b,c;
b=a/10;
c=a%10;
cout<<b<<c;
a=b*c;
cout<<a;

Source: CoolInterview.com

given a=56
int b,c;
b=a&0F;
c=a&F0;
c=c<<4;
cout<<c<<b;
cout<<(c*b); Source: CoolInterview.com

void main()
{
int value = 56;
value = value>>4;
value = value<<1;
cout<<value<<endl;//display 6
int tmp = value>>2;
tmp = value-tmp;
cout<<tmp<<endl;//display 5
cout<<tmp*value<<endl;
//Multiply 5*6
}
Source: CoolInterview.com

#include <stdio.h>
struct int_value{
unsigned int lsb1:4;
unsigned int lsb2:4;
unsigned int lsb3:4;
unsigned int lsb4:4;
unsigned int msb1:4;
unsigned int msb2:4;
unsigned int msb3:4;
unsigned int msb4:4;
};


int main()
{
struct int_value value;
int a =0x56;
int b,c,d;
value = *(struct int_value*)&a;
b=(int)value.lsb1;
c=(int)value.lsb2;
printf("%d %d
", b,c);
d = b*c;
printf("%d", d);

}
Source: CoolInterview.com

Multiply should be done using bit-wise operators. not using'*' Source: CoolInterview.com

#include<stdio.h>

int main()
{
char a = 0x56;
char b = 0x00;
char c = 0x00;
char d = 0x00;
b = a >> 4;

c = a << 4;
c = c >> 4;
printf("
B is %x", b);
printf("
C is %x", c);
b = b << 1;
d = b;
b = b << 1;
b = b + d;
printf("
B is %x %d", b ,b);


} Source: CoolInterview.com

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