write a c program to determine interchanged

Question

1. Write a c program to determine interchanged values between two variables?[Hint - if loop]
2. What will be the output of the program?
3. How many times this loop will execute?
4. Write a c program to prints the number between 10 and 20?
5. What will be output of following c code ?
6. Which datatype cannot be checked in a switch-case statement ?
7. Write a program to detect the entered number as to whether it is even or odd ? Use goto statement ?
8. What will be output of following c code ?
9. Point out the error, if any in the program.
10. Which of the following errors would be reported by the compiler on compiling the program given below?
11. Which of the following statements are correct about the below program?
12. What will be output of following c code?
13. The way the break is used to take control out of switch and continue to take control of the beginning of the switch?
14. Write a program to find whether a year is Leap year ? [Hint : if – else Statement] ?
15. Write about if-else statements in a C-program?
16. Can we use a switch statement to switch on strings?
17. Write C program for Electricity Bill ?[Hint : if – else statement]
18. Write a syntax for Nested- if else statement?
19. Write a program to find the roots of the quadratic equation ? [Hint : if (real) – else (imagenary) statement]