Strings - C Programming Questions and Answers

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Which of the following statements are correct about the below declarations?
char *p = "Sanjay";
char a[] = "Sanjay";

1:	There is no difference in the declarations and both serve the same purpose.
2:	p is a non-const pointer pointing to a non-const string, whereas a is a const pointer pointing to a non-const pointer.
3:	The pointer p can be modified to point to another string, whereas the individual characters within array a can be changed.
4:	In both cases the '\0' will be added at the end of the string "Sanjay".

1, 2

2, 3, 4

3, 4

2, 3

Which of the following statements are correct ?

1:	A string is a collection of characters terminated by '\0'.
2:	The format specifier %s is used to print a string.
3:	The length of the string can be obtained by strlen().
4:	The pointer CANNOT work on string.

1, 2

1, 2, 3

2, 4

3, 4

Which of the following statement is correct?

strcmp(s1, s2) returns a number less than 0 if s1>s2

strcmp(s1, s2) returns a number greater than 0 if s1<s2

strcmp(s1, s2) returns 0 if s1==s2

strcmp(s1, s2) returns 1 if s1==s2

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