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Middle character needs to be ignored and to be checked for lapindrome…[Cprogm]FTC

Nathan is a Researcher in English Literature. According to him string which when split in the middle, gives two halves having the same characters and the same frequency of each character is termed as Lapindrome. 

If there are an odd number of characters in the string, the middle character needs to be ignored and to be checked for lapindrome. can you find the lapindrome strings? 

Input:
The first integer T, the number of test cases.

Each testcase is a single line containing a string of only lowercase English alphabet.

Output:
If the string is a lapindrome print "YES" otherwise print "NO".
#include <stdio.h>
#include<string.h>
int main()
{   int i=0,T=0;
    scanf("%d",&T);
    for(i=0;i<T;i++){
        int arr1[26],arr2[26];
        memset(arr1,0,26*sizeof(int));
        memset(arr2,0,26*sizeof(int));
        char S[20];scanf("%s",S);
        int j=0,k=strlen(S)-1,flag=0;
            while(j<k){
                arr1[S[j]-'a']++;
                arr2[S[k]-'a']++;
                j++;
                k--;
            }
            for (j=0;j<26;j++){
                if(arr1[j]!=arr2[j]){printf("NO\n");flag=1;break;}
            }
            if(flag==0){printf("YES\n");}
    }
    return 0;
}

INPUT_!:
6
gaga
abcde
rotor
xyzxy
abbaab
ababc

OUTPUT:
YES
NO
YES
YES
NO
NO


INPUT_2:
5
ghfgh
malayalam
gogo
roor
caffac

OUTPUT:
YES
YES
YES
YES
YES


ILLUSTRATION – THE REAL OUTPUT DISPLAY

EXECUTED USING GCC LINUX TERMINAL