Hackerrank Game of Thrones - I

The Solution for hackerrank problem, Game of Thrones - I using C Program.

Passed Test cases: 20 out of 20

SOURCE CODE:

 #include <stdio.h>  
 #include <string.h>  
 #include <math.h>  
 #include <stdlib.h>  
 void findPalind(char *arr)  
 {  
   char array[26]={0};  
   int flag = 0,i,j,k;  
   for(i=0;arr[i]!='\0';i++){  
     array[(arr[i]-97)]++;  
   }  
   for(i=0;i<26;i++){  
     if(array[i]%2!=0){  
       flag++;  
     }  
   }  
   if (flag <= 1)  
     printf("YES\n");  
   else  
     printf("NO\n");  
 }  
 int main() {  
   char arr[100001];  
   scanf("%s",arr);  
   findPalind(arr);  
   return 0;  
 }