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C Operators Questions and Answers
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
6. 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: D
Explanation
Same principle as we do for ++ operator.
7. 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: A
Explanation
a = --i + --i + --i;
a = 4 + --i + --i
a = 4 + 3 + --i
a = 3 + 3 + --i
a = 3 + 3 + 2
Finally a = 8. got it?
8. 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: D
Explanation
Now we go straight way to the program.
a = --i - --i - --i - --i;
a = 4 - --i - --i - --i
a = 4 - 3 - --i - --i
a = 3 - 3 - --i - --i
a = 3 - 3 - 2 - --i
a = 3 - 3 - 2 - 1
Finally a = -3. got it?
9. What will be the output of the C program?
#include<stdio.h>
int main()
{
int a = 2, b = 2, c = 0, d = 2, m;
m = a++ && b++ && c++ || d++;
printf("%d %d %d %d %d",a, b, c, d, m);
return 0;
}
x
Option: B
Explanation
As operator enjoys priority && have more priority than ||.
m = a++ && b++ && c++ || d++;
m = 1 && c++ || d++;
m = 1 || d++;
m = 1 || 0;
m = 1;
10. 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: C
Explanation
a = --i + ++i - i-- + --i
a = 4 + ++i - i-- + --i
a = 4 + 5 - i-- + --i
a = 5 + 5 - 5 + --i
a = 5 + 5 - 5 + 3
Finally a = 8. got it?
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