Thursday 21st of November 03:38:57pm
Thursday 21st of November 03:38:57pm
A palindrome is a phrase that reads the same backward as forward, ignoring whitespace and punctuation. For example, “Madam, I m Adam” and “Are we not drawn onward, we few? Drawn onward to new era?” are palindromes.Write a program that will determine whether a string entered from the keyboard is a palindrome.
Solution:
#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main()
{
char sentence[1000];
char sentence_chars[1000];
int j=0,length=0,i;
printf("Enter a sentence ");
gets(sentence);
for(i=0; i<strlen(sentence); i++)
if(isalpha(sentence[i]))
sentence_chars[j++]=tolower(sentence[i]);
sentence_chars[j]= ; // use single quotation
length=strlen(sentence_chars);
for(i=0; i<length/2; i++)
if(sentence_chars[i]!=sentence_chars[length-1-i])
break;
if(i==length/2)
printf("palindrome");
else
printf("not palindrome");
}
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