Write a program to check whether a word is palindrome or not

#include<stdio.h>
#include<conio.h>
#include<string.h>
int main(){
 char str[20];
 int i, len, temp=0;
 int flag = 0;
 printf("Enter a string:");
 scanf("%s", str);
 len = strlen(str);
 for(i=0;i < len ;i++){
 if(str[i] != str[len-i-1]){
 temp = 1;
 break;
 }
}
  if (temp==0) {
 printf("String is a palindrome");
 }
 else {
 printf("String is not a palindrome");
 }
 return 0;
}