Aaron has a number D containing only digits 0's and 1's. He wants to make the number to have all the digits same. For that, he will change exactly one digit, i.e. from 0 to 1 or from 1 to 0.

 #include <stdio.h>

#include<string.h>

#include<ctype.h>

int main()

{

    int t,n1,n0,len,i;

    char str[100002];

    scanf("%d",&t);

    while(t--){

    scanf("%s",str);

    n1=n0=0;

    len=strlen(str);

    for(i=0;i<len;i++){

    if(str[i]=='0') 

    ++n0;

    else

    ++n1;

    }

    if(n1==len-1 || n0==len-1)

    printf("YES\n");

    else

    printf("NO\n");

    }

return 0;

}

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