Pointers - C Questions
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Memory Allocation - 1 Memory Allocation - 2The ones who are crazy enough to think they can change the world are the ones who do.- Steve Jobs
C printf Tricky 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 Printf 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 Printf to make your MNC interview very easy.
C Printf Questions and Answers
6. What will be the output of the C program?
#include<stdio.h>
int main()
{
int a = 5;
printf("%d"+1,a);
return 0;
}
x
Option: D
Try it
Understand yourself, if not, you will get this logic in next program.
7. What will be the output of the C program?
#include<stdio.h>
int main()
{
int a = 5;
printf("%dha"+2,a);
return 0;
}
x
Option: A
Explanation
+2 in printf("%dha"+2,a); will neglect %d(0 for % and 1 for d) and then it prints ha
This program is tested under Dev cpp and in standard online c compiler.
8. What will be the output of the C program?
#include<stdio.h>
int main()
{
int i = 5, *ptr;
ptr = &i;
*ptr = 0;
printf("\n Number is %d",i);
return 0;
}
x
Option: D
Explanation
Interestingly, a variable i holds the value 5, then the address of a variable i is stored in a pointer variable ptr , finally the pointer variable *ptr is set to the value 0. Clearly, now the address of i hold the value 0 which is displayed.
9. What will be the output of the C program?
#include<stdio.h>
int main()
{
static int arr[5],i;
for(i=0;i<=5;i++)
printf("%d",arr[i] = 1);
return 0;
}
x
Option: B
Explanation
Simply, for every iteration of for loop arr[] is set to 1.
10. What will be the output of the C program?
#include<stdio.h>
static struct student
{
int a;
int b;
}struct_var{};
int main()
{
printf("%d %d",struct_var.a,struct_var.b);
return 0;
}
B. Improper representation of structure variable✘
x
Option: D
Explanation
As there is no structure variables are initialized to the data type of the membernames. By default c compiler will automatically initialize 0 to its every membernames.
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