Palindrome using string function

Palindrome using string function: Palindrome String means that string spelled as same as in reverse. that is considering we have a string name now reverse that string if reversed string matches with the original string then that string is referred to as palindrome string.

Example :
Ankit is not a palindrome
ABA is palindrome
In the above example, Ankit => reverse string we get tikna as a string which is different from the original string so it’s not a palindrome. Similarly ABA => reverse string we get ABA which is the same as an original string so its palindrome string.

Algorithm for palindrome string

1. Take string input
2. Find the length of the string
3. Traverse string from start to end
   compare character from start and end
   If they are not equal
   Set flag=1
4. if flag==1
   Print string is not a palindrome
   else
   Print string is not a palindrome

Flowchart for palindrome string

C program for Palindrome using string function

#include <stdio.h>
#include <string.h>

int main(){
char string1[20];
int i, length;
int flag = 0;

printf("Enter a string:");
scanf("%s", string1);

length = strlen(string1);

for(i=0;i < length ;i++){
if(string1[i] != string1[length-i-1]){
flag = 1;
break;
}
}

if (flag) {
printf("%s is not a palindrome", string1);
}
else {
printf("%s is a palindrome", string1);
}
return 0;
i}

Output: