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C Operators Questions
In most of the MNC interview questions such as in ZOHO interview question, IVTL Infoview interview questions, Amazon interview questions, GOOGLE interview questions, Infosys interview questions and even in Voonik interview questions, We come across several Tricky C Questions about which 2:5 of the questions are from Operators in c. Solving that kind of tricky C questions is not an easy task for all C programmers. We need more practices to solve it with ease. So we provide 25+ interesting C questions in Operators to make your MNC interview very easy.
Operators Questions and Answers
1. What will be the output of the C program?
#include<stdio.h>
int main()
{
int num = 8;
printf ("%d %d", num << 1, num >> 1);
return 0;
}
x
Option: D
Explanation
Shift operator shift the value stored in a variable num. One to the right(<<) and other to the left(>>).
2. What will be the output of the C program?
#include<stdio.h>
int main()
{
int i = 5;
int a = ++i + ++i;
printf("%d",a);
return 0;
}
x
Option: A
Explanation
How 14 comes instead of 13. Let's explain it
actuallty a = 6 + 7;, but not because second (++) operators result will be overwritten to the first operand.
Note that even if you have n number of operands with increment operator(++). the above discussed effect will take place only between first and second operand. Please check next quiz to clear it 100%.
3. What will be the output of the C program?
#include<stdio.h>
int main()
{
int i = 5;
int a = ++i + ++i + ++i;
printf("%d",a);
return 0;
}
x
Option: D
Explanation
Now we go straight way to the program.
a = ++i + ++i + ++i;
a = 6 + ++i + ++i
a = 6 + 7 + ++i
a = 7 + 7 + ++i
a = 7 + 7 + 8
a = 7 + 7 + 8
Finally a = 22. got it?
4. What will be the output of the C program?
#include<stdio.h>
int main()
{
int i = 5;
int a = ++i + ++i + ++i + ++i;
printf("%d",a);
return 0;
}
x
Option: B
Explanation
Now we go straight way to the program.
a = ++i + ++i + ++i + ++i;
a = 6 + ++i + ++i + ++i;
a = 6 + 7 + ++i + ++i
a = 7 + 7 + ++i + ++i
a = 7 + 7 + 8 + ++i
a = 7 + 7 + 8 + 9
Finally a = 31. got it?
5. What will be the output of the C program?
#include<stdio.h>
int main(){
int i = 16;
i =! i > 15;
printf("i = %d",i);
return 0;
}
x
Option: C
Explanation
Note !i which means for any value of variable i to 0.
Now, we have the condition i = 0 > 14;. Thus i = 0 ( condition false ) will is outputted.
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