Learn2Code

What is the output of the following program?

#include <stdio.h>
int main() {
int i;
for (i = 0; i < 5; i++);
printf("%d ", i);
return 0;
}

• Prints 0 1 2 3 4

• Prints 5 only

• Infinite loop

• Compilation error

What is the result of executing the following code?

#include <stdio.h>
int main() {
    for (int j = 0; j < 3; j++) {
        printf("Hello World\n");
    }
    return 0;
}

• Hello World Hello World Hello World

• 3 times Hello World

• Compilation error

• Hello World

What will be the result of the following code?

#include <stdio.h>

int main() {

int a = 10, b = 0;

printf("%d", a / b);

return 0;

}

• 0

• 10

• Runtime error (division by zero)

• Compilation error

What will happen when you run this program?

#include <stdio.h>

int main() {

int arr[5] = {1, 2, 3, 4, 5};

printf("%d", arr[5]);

return 0;

}

• Output is 5

• Output is 0

• Undefined behavior / garbage value

• Compilation error

What’s wrong in the following code?

#include <stdio.h>

int main() {

int i = 1;

while (i <= 5) {

printf("%d ", i);

}

return 0;

}

• Infinite loop

• Compilation error

• Prints 1 to 5

• Prints 1 repeatedly and exits

What will be the output of this code?

#include <stdio.h>

int main() {

int a = 7;

if (a = 10) {

printf("Condition is true\n");

}

return 0;

}

• Condition is true

• Compilation error

• Condition is false

• No output

What will this code print?

#include <stdio.h>

int main() {

int a = 5;

printf("%d\n", a++ + ++a);

return 0;

}

• 11

• 12

• Undefined behavior

• Compilation error

What is wrong with this loop?

#include <stdio.h>

int main() {

int i;

for (i = 0; i = 5; i++) {

printf("%d ", i);

}

return 0;

}

• Prints 5

• Infinite loop

• Prints 0 to 4

• Loop runs only once

What does this program print?

#include <stdio.h>

int main() {

int arr[5] = {1, 2};

for (int i = 0; i < 5; i++) {

printf("%d ", arr[i]);

}

return 0;

}

• 1 2 0 0 0

• 1 2 Garbage Garbage Garbage

• Compilation error

• Undefined behavior

What is the output of this code? #include int main() { int x = 5, y = 3; int z = x && y; printf("%d", z); return 0; }

• 1

• 0

• 5

• Compilation error