[ECP1026] In Lab 2, Question 2

//https://www.facebook.com/AminproPastebin


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



int palin(char str[], int offset){
    int ok = 1;
    int length = strlen(str);
    int i;


for(i=0;i<length;i++){
        str[i]=toupper(str[i]);
}
    if(length/2 > 0)
        ok = (str[0] == str[length - 1 - offset])?
        palin(++str, ++offset):0;

    return ok;
}
int main(){

while(1){

    int i = 0;
    int ok = 0;
    char str[20];
    char ori[20];

    printf("Enter a word: ");
    scanf("%s", str);
    strcpy(ori, str);
    ok = palin(str, 0);

        switch(ok){
            case 0:
                printf("%s is not a palindrome.", ori);
                break;
            case 1:
                printf("%s is a palindrome.", ori);
                break;

        }
        printf("\n\n");
}
    return 0;

}