Answer Posted / utsav patel

in c language five types of variable are present
1) local variable.
2) global variable.
3) static variable.
4) automatic variable.
5) external variable.

What is the use of extern in c?

1046

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Are c and c++ the same?

1001

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Define Array of pointers.

1041

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What are global variables and how do you declare them?

1015

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Why do we use stdio h and conio h?

1031

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main(){char *str;scanf("%s",str);printf("%s",str); }The error in the above program is: a) Variable 'str' is not initialised b) Format control for a string is not %s c) Parameter to scanf is passed by value. It should be an address d) none

1299

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What is a union?

979

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Explain the difference between call by value and call by reference in c language?

1050

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using only #include and #include Write a program in C that will read an input from the user and print it back to the user if it is a palindrome. The string ends when it encounters a whitespace. The input string is at most 30 characters. Assume the string has no spaces and distinguish between and lowercase. So madam is a palindrome, but MadAm is not a palindrome. Use scanf and %s to read the string. Sample Test: Enter a string: madam madam is a palindrome. Enter a string: 09023 09023 is not a palindrome.

1768

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Which function in C can be used to append a string to another string?

1176

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How does pointer work in c?

1070

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Why doesnt the call scanf work?

1137

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Define recursion in c.

1196

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Differentiate between the expression “++a” and “a++”?

1201

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a c variable cannot start with a) an alphabet b) a number c) a special symbol d) both b and c above

1167

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