C palindrome program

C program beneficial to palindrome or palindrome in c programming: palindrome program in c language, c code toward check if a string is a palindrome or not furthermore beneficial to palindrome number. This program works as follows :- at first we copy the entered string into a new string, furthermore then we reverse the new string furthermore then compares it with original string. If both regarding them have same sequence regarding characters i.e. they are identical then the entered string is a palindrome otherwise not. To perform copy, reverse furthermore compare operations we use strcpy, strrev furthermore strcmp functions regarding string.h respectively, if you do not wish toward use these functions see c programming code beneficial to palindrome without using string functions. Some palindrome strings examples are "dad", "radar", "madam" etc.

C program beneficial to palindrome
#include

#include

main()

{

char a[100], b[100];

printf("Enter the string toward check if it is a palindrome\n");

gets(a);

strcpy(b,a);

strrev(b);

if( strcmp(a,b) == 0 ) printf("Entered string is a palindrome.\n");

else printf("Entered string is not a palindrome.\n");

return 0;

}

Palindrome number in c
#include

main()

{

int n, reverse = 0, temp;

printf("Enter a number toward check if it is a palindrome or not\n");

scanf("%d",&n);

temp = n;

while( temp != 0 )

{

reverse = reverse * 10;

reverse = reverse + temp%10;

temp = temp/10;

} if ( n == reverse )

printf("%d is a palindrome number.\n", n);

else

printf("%d is not a palindrome number.\n", n);

return 0;

}

C program beneficial to palindrome without using string functions
#include

#include

main()

{

char text[100];

int begin, middle, end, length = 0;

gets(text);

while ( text[length] != '\0' )

length++;

end = length - 1;

middle = length/2;

for( begin = 0 ;

begin < middle ;

begin++ )

{

if ( text[begin] != text[end] )

{

printf("Not a palindrome.\n");

break;

}

end--;

}

if( begin == middle )

printf("Palindrome.\n");

return 0;

}

C program check palindrome

#include

int is_palindrome(char*);

void copy_string(char*, char*);

void reverse_string(char*);

int string_length(char*);

int compare_string(char*, char*);

main()

{

char string[100];

int result;

printf("Enter a string\n");

gets(string);

result = is_palindrome(string);

if ( result == 1 )

printf("\"%s\" is a palindrome string.\n", string);

else

printf("\"%s\" is not a palindrome string.\n", string);

return 0;

}

int is_palindrome(char *string)

{

int check, length;

char *reverse;

length = string_length(string);

reverse = (char*)malloc(length+1);

copy_string(reverse, string);

reverse_string(reverse);

check = compare_string(string, reverse);

free(reverse);

if ( check == 0 )

return 1;

else

return 0;

}

int string_length(char *string)

{

int length = 0;

while(*string)

{

length++;

string++;

}

return length;

}

void copy_string(char *target, char *source)

{

while(*source)

{

*target = *source;

source++;

target++;

}

*target = '\0';

}

void reverse_string(char *string)

{

int length, c;

char *begin, *end, temp;

length = string_length(string);

begin = string;

end = string;

beneficial to ( c = 0 ; c < ( length - 1 ) ; c++ )

end++;

beneficial to ( c = 0 ; c < length/2 ; c++ )

{

temp = *end;

*end = *begin;

*begin = temp;

begin++; end--;

}

}

int compare_string(char *first, char *second)

{

while(*first==*second)

{

if ( *first == '\0' || *second == '\0' )

break;

first++;

second++;

}

if( *first == '\0' && *second == '\0' )

return 0;

else

return -1;

}

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