fresher c programming interview questions
This post covers basics interview questions on control flow statements including loops, switch statements along with datatype.
- What is the output of the following code?
#include<stdio.h>
int main() {
while (printf("%c", 65))
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
while (printf("%c", 65)) {}
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int i = 1;
while (i++ <= 1)
while (i++ <= 2);
printf("%d", a);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
short i = 1;
while (i-- <= 1)
while (i-- <= 0);
printf("% d", i);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
short i = 1;
while (++i >= 1);
printf("%d", i);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
short i = 1;
while (i-- < 32767);
printf("%d", i);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
short i = 32767;
while (i--);
printf("%d", i);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
short i = -1;
while (i--);
printf("%d", i);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
while ()
printf("Hello Balu");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
while ("hai");
printf("hello");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
while (printf("Hai"), printf(""))
printf("hello");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a;
a = 0;
while (a++ <= 5)
printf("%d ", a);
printf("%d ", a + 10);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a, b;
a = b = 1;
while (a) {
a = b++ <= 3;
printf("%d %d\n", a, b);
}
printf("%d %d\n", a + 10, b + 10);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a, b;
a = b = 13;
while (a) {
a = b-- >= 10;
printf("%d %d\n", a, b);
}
printf("%d %d\n", a + 10, b + 10);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a;
a = 100;
do
while (a++ > 10);
printf("% d", a);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a;
a = 10;
do
while (a++ < 10);
while (a++ <= 11);
printf(" % d", a);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
for (;;)
printf("hello");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a, b;
for (a = b = 0; a; printf("\n%d %d", a, b))
a = b++ <= 3;
printf("\n%d %d", a + 10, b + 10);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int i;
for (i = 1; i++ <= 3; i++);
i++;
printf(" % d", i);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int i;
for (i = 1; i++ <= 1; i++)
for (i++; i++ <= 6; i++)
i++;
printf("%d", i);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int x = 10, y = 20;
while (x-- >= 8 || y-- >= 18)
printf("\n %d %d", x, y);
printf(" %d %d", x + 10, y + 10);
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a = 0;
do
printf("balututorial.com");
while (a);
printf("C Balu");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int i = 0;
for (; i;)
printf("\nFor Loop Body");
printf("\nOutside Loop ");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
for (; 0;)
printf("\nFor Loop Body");
printf("\nOutside Loop ");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int i = 0;
while (i)
printf("\nWhile Loop");
printf("\nOut Side While");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
while (0)
printf("\nWhile Loop");
printf("\nOutside While");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int i = 0;
do
printf("\nDoWhile Loop");
while (i);
printf("\nOutside Do while");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
int main() {
do
printf("\nDoWhile Loop");
while (0);
printf("\nOutside Do While");
return 0;
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a;
a = 10;
while (a >= 1) {
printf("%d ", a);
if (a < 5)
break;
a++;
}
printf("%d ", a + 10);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 1;
while (a <= 10); {
printf("%d ", a--);
if (a < 5) break;
}
printf("%d ", a + 10);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 10;
while (a >= 1) {
a--;
if (a > 4 && a < 7)
continue;
printf("%d ", a);
}
printf("%d ", a + 10);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 1;
while (a <= 10) {
printf(" %d", a);
if (a > 5 && a < 8)
continue;
a++;
}
printf("%d ", a + 10);
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 10;
while (a <= 100); {
a++;
if (a > 50 && a < 80)
continue;
printf(" % d", a);
}
printf("%d ", a + 10);
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int i;
for (; scanf("%d", & i); printf("%d", i))
//Entered Value is 10
return 0;
}
- How many times the loop will get executed?
int i;
for (i = 0; i = 10; i++)
printf("Hi");
- What is the output of the following code?
#include<stdio.h>
void main() {
printf("1");
goto XYZ;
printf("2");
XYZ:
printf("3");
}
- What is the output of the following code?
#include<stdio.h>
int main() {
int a = 3;
L1:
printf("%d", a);
a--;
if (a > 1)
goto L1;
return 0;
}
- What is the output of the following code?
#include<stdio.h>
main() {
L1:
int a = 3;
printf("%d", a);
a--;
if (a > 1)
goto L1;
return 0;
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 2;
switch (a); {
case 1: printf("A");
case 2: printf("B");
case 3: printf("C");
break;
default: printf("E");
}
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 2;
switch (a) {
case 1:
printf("A");
case 2:
printf("B");
continue;
case 3:
printf("C");
break;
default:
printf("E");
}
}
- What is the output of the following code?
#include<stdio.h>
void main() {
int a = 2;
switch (a) {
case4: printf("A");
break;
case3: printf("B");
case2: printf("C");
case1: printf("D");
break;
default:
printf("E");
}
}
- What is the output of the following code?
#include <stdio.h>
void main() {
int i = 0;
switch (printf("Hi"), printf("")) {
case 1:
printf("%d", i);
break;
case 2:
printf("%d", ++i);
break;
}
}
