Strings

Strings

Easy Questions

C Programming

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  1. Read the following program. 
    findPalindrome
{
char *str;
char *str1;
str = str1;
while(str1 != NULL)
 {
   str1++;
 }
while(str!=NULL)
{
   if(str1--!= str++)
   {
    printf("Not palindrome");
    return
  }
}
printf("Palindrome");
}
    This function will work correctly for which string?








  1. View Hint View Answer Discuss in Forum

    example of an odd palindrome:-
    madam
    Level
    example of an even palindrome:-
    noon

    Correct Option: C

    take example of string "madam" for odd palindrome.
    str points to beginning of the string 'm'
    str1 points to end of string 'm'
    1st iteration, it is equal.
    2nd iteration - 'a'
    3rd iteration - 'd'
    4th iteration - 'a'
    5th iteration - 'm'

    similarly consider even palidrome string:- "noon"

    str points to beginning of the string 'n'
    str1 points to end of string 'n'
    2nd iteration-'o'
    3rd iteration-'o'
    4th iteration-'n'

    It works for both even and odd palindromes

  1. Which of the following will return a non-zero value when checked with isspace(c)?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    All of above

  1. What will be the output of the following C code?
    #include <stdio.h>
        #include <ctype.h>
        int main()
        {
            char n = 20;
            if (isdigit(n))
                {
                printf("Digit\n");
                }
            else
                {
                printf("Not Digit\n");
                }
                return 0;
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    Not Digit

  1. What will be the output of the following C code?
    #include <stdio.h>
    #include <ctype.h>
        int main()
        {
            int n = 'B';
            if (isdigit(n))
                {
                printf("Digit\n");
                }
            else
                {
                printf("Not Digit\n");
                }
                return 0;
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    Not Digit

  1. What will be the output of the following C code?
    #include <stdio.h>
        int main()
        {
            char n = '25';
            if (isdigit(n))
                {
                printf("Digit\n");
                }
            else
                {
                printf("Not Digit\n");
                }
                return 0;
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    Digit