Here is a good puzzle: how do you write a program which produces its own source code as output?

0 Answers  

---

1. What is the output of printf("%d") 2. What will happen if I say delete this 3. Difference between "C structure" and "C++ structure". 4. Diffrence between a "assignment operator" and a "copy constructor" 5. What is the difference between "overloading" and "overridding"? 6. Explain the need for "Virtual Destructor". 7. Can we have "Virtual Constructors"? 8. What are the different types of polymorphism? 9. What are Virtual Functions? How to implement virtual functions in "C" 10. What are the different types of Storage classes? 11. What is Namespace? 12. What are the types of STL containers?. 13. Difference between "vector" and "array"? 14. How to write a program such that it will delete itself after exectution? 15. Can we generate a C++ source code from the binary file? 16. What are inline functions? 17. Talk sometiming about profiling? 18. How many lines of code you have written for a single program? 19. What is "strstream" ? 20. How to write Multithreaded applications using C++? 21. Explain "passing by value", "passing by pointer" and "passing by reference" 22. Write any small program that will compile in "C" but not in "C++" 23. Have you heard of "mutable" keyword? 24. What is a "RTTI"? 25. Is there something that I can do in C and not in C++? 26. Why preincrement operator is faster than postincrement? 27. What is the difference between "calloc" and "malloc"? 28. What will happen if I allocate memory using "new" and free it using "free" or allocate sing "calloc" and free it using "delete"? 29. What is Memory Alignment? 30. Explain working of printf. 31. Difference between "printf" and "sprintf". 32. What is "map" in STL? 33. When shall I use Multiple Inheritance? 34. What are the techniques you use for debugging? 35. How to reduce a final size of executable? 36. Give 2 examples of a code optimization.

2 Answers  

---

Reverse the bit order in a single macro. eg. i/p = 10010101 --> o/p = 10101001

2 Answers  

---

int a=2,b=3,c=4; printf("a=%d,b=%d\n",a,b,c); what is the o/p?

6 Answers   Verifone,

---

What are pointers in C? Give an example where to illustrate their significance.

0 Answers   Wipro,

---

---

Is there something we can do in C but not in C++? Declare variable names that are keywords in C++ but not C.

2 Answers   Infosys,

---

what is the full form of c language

9 Answers   Satyam, TCS, VNC,

---

what is foreign key in c language?

1 Answers   ADP,

---

what does ‘segmentation violation’ mean?

1 Answers  

---

1) write a program to generate 1st n fibonacci prime numbers using Nested if 2) write a program to generate twin prime numbers from m to n using nested if 3) write a program to check whether a given integer is a strong number or not using nested if 4) Write a program to generate prime factors of a given integer using nested if 5)write a program to generate prime numbers from m to n using nested if 6)write a program to generate perfect numbers from m to n using nested if 7)write a program to generate the pallindromes from m to n using neste if 8)write a program to generate armstrong numbers from m to n using nested if 9)write a program to generate strong numbers from m to n using nested if

0 Answers   TCS,

---

Find the O/p of the following 1) #include int main() { char c='1'; int j=atoi(c); }

4 Answers   Subex,

---

sir, i cannot find the way how to write aprogram by using array on queue

1 Answers   IISIT,

---