C Programming Quiz

what is output of this code? #include int main() { printf("%c ", 5["GeeksQuiz"]); return 0; }

• Compile-time error

• Runtime error

• Q

• s

Which of the following is true

• gets() can read a string with newline characters but a normal scanf() with %s can not.

• gets() can read a string with spaces but a normal scanf() with %s can not.

• gets() can always replace scanf() without any additional code.

• None of the above

Which of the following functions from “stdio.h” can be used in place of printf()?

• fputs() with FILE stream as stdout.

• fprintf() with FILE stream as stdout.

• fwrite() with FILE stream as stdout.

• All of the above three - a, b and c.

• In “stdio.h”, there’s no other equivalent function of printf().

Which of the following is not a valid declaration in C?

• 3 and 4

• short int x;

• short x;

• unsigned short x;

• signed short x;

In C, sizes of an integer and a pointer must be same.

• True

• False

Suppose a C program has floating constant 1.414, what's the best way to convert this as "float" data type?

• (float)1.414

• float(1.414)

• 1.414f or 1.414F

• 1.414 itself of "float" data type i.e. nothing else required.

What is output? #include int main(void) { int a = 1; int b = 0; b = a++ + a++; printf("%d %d",a,b); return 0; }

• 3 6

• Compiler Dependent

• 3 4

• 3 3

In C, two integers can be swapped using minimum

• 0 extra variable

• 1 extra variable

• 2 extra variable

• 4 extra variable

Which of the following operators cannot be overloaded in C/C++ ?

• Bitwise right shift assignment

• Address of

• Indirection

• Structure reference

• Discuss it

What is the output of code? #include int main() { printf("%d", printf("%d", 1234)); return 0; }

• 12344

• 12341

• 11234

• 41234