Code debugging - Round 1

1.What will be the output of the following C code?

int main()

{

int x = 10;

if (x = 5)

{

printf("True");

}

else

{

printf("False");

}

   return 0;

 }

• Segmentation Fault
• False
• True
• Error

Which of the following statements is true about the C programming language's malloc() function?

• It automatically initializes the memory allocated to zero.

• It allocates memory from the stack.

• It returns a pointer to the first byte of the allocated memory.

• It is a standard library function for dynamic memory allocation in C++ only.

What will be the output of the following C code?

#include <stdio.h>

int main()

{

char str[] = "Hello";

str[0] = 'J';

printf("%s", str);

return 0;

}

• Hello

• Jello

• Error

• Undefined behavior

Which Python statement creates an empty set?

• set()

• []

• {}  

• empty()

What will the following C code print?

int x = 5;

printf("%d %d %d", x++, ++x, x);

• 5 7 6

• 6 7 6

• 5 6 6

• Undefined behavior

In Python, what is the purpose of the lambda function?

• To define an anonymous function in a single line.

• To define a function with a fixed number of arguments.

• To define a function with variable arguments.

• To make a function that returns multiple values.

Which of the following Python methods is used to remove an item from a list?

• list.delete()

• list.pop()

• list.remove()

•  list.clear()

Which of the following C statements is correct for allocating memory for an array of 10 integers?

• int *arr = malloc(10);

• int *arr = malloc(10 * sizeof(int));

• int arr = malloc(10 * sizeof(int));

• int arr[10] = malloc(sizeof(int));

What will be the result of the following Python code?

python

a = [1, 2, 3]

a = a * 2

print(a)

• [1, 2, 3, 1, 2, 3]

• [1, 2, 3]

• [1, 2, 3, 4, 5, 6]  

• Error

Which of the following is the correct syntax for a comment in C?

• # comment

• /* comment */

• // comment

• Both B and C