C Programming Quiz 2

What is meaning of following declaration ? int arr[20];

• A Array of Size 20

• B None of these

• C Integer Array of size 20

• D Array of size 20 that can have integer address

What will be the output of the program if the array begins 1200 in memory? #include int main() { int arr[]={2, 3, 4, 1, 6}; printf("%u, %u, %u\n", arr, &arr[0], &arr); return 0; }

• 1200, 1202, 1204

• 1200, 1200, 1200

• 1200, 1204, 1208

• 1200, 1202, 1200

What is the output of the following code? main() { int a=1, b=10; swap(a,b); printf("\n%d%d", a,b); } swap(int x, int y) { int temp; temp=x; x=y; y=temp; }

• 1 1

• 1 10

• 10 1

• None of these

What will be the output of the following C code? #include void main() { m(); void m() { printf("hi"); } }

• hi

• Compile time error

• Nothing

• Varies

What will be the output of the following C code? #include void main() { m(); } void m() { printf("hi"); m(); }

• Compile time error

• hi

• Infinite hi

• Nothing

A function which calls itself is called a ___ function.

• Self Function

• Auto Function

• Recursive Function

• Static Function

What is the output of C program with pointers. int main() { int a = 20; //a memory location = 1234 printf("%d %d %d %d", a, &a, *(&a)); return 0; }

• 20 20 20

• 20 1234 1234

• 20 1234 20

• 20 20 20

What is the output of the following C code? int add(int a, int b) { return a + b; } int main() { printf("%d", add(3, 4)); return 0; }

• 3

• 4

• 7

• Error

#include #include void main() { char *str1,*str2,*str3; str1="India is my"; str2="!!yrtnuoC"; str3="Gujarat"; clrscr(); strncat(str1,strrev(str2),strlen(str3)); puts(str1); } What will be the value of STR1 after execution of the above program?

• India is my Country!!

• India is my !!yrtnuoC

• India is my Country

• None of these

What will be the output of the program? #include void modify(int x) { x = x + 5; } int main() { int a = 10; modify(a); printf("%d", a); return 0; }

• 15

• 10

• Compilation error

• Undefined behavior