Palindrome String

/* Without using string function */
#include<stdio.h>

int main() {
	int i, j = 0, k = 0;

	/* Declaration of character type array */
	char str[30];
	printf("Check the given string is Palindrome or not\n");
	printf("Enter any String upto 30 characters:\n");

	/* Received string in a character array */
	scanf("%29s", str);

	/* "For loop" to count the length of the string */
	for(i=0; str[i] != '\0'; i++);
		for(j = i - 1; j >= 0 ; j--) {

			/* Compare the string from left and right both side in a same array */
			if(str[j] == str[k])
				k++;
			else
				break;
		}
	if(i == k)
		printf("String is Palindrome!\n");
	else
		printf("String is not Palindrome!\n");
	return 0;
}