Div 1 Problem F

#include<cstdio>
#include<cstdlib>
int main()
{
    int test,t=0,i;
    char a[100];
    scanf("%d",&test);
    while(test--)
    {
        scanf("%s",a);
        int count_odd=0;
        int count_even=0;
        for(i=0;a[i]!='\0';i++)
        {
            if((a[i]-'0')%2==0)
                count_even++;
            else
                count_odd++;
        }
        if(abs(count_odd-count_even)==0||abs(count_odd-count_even)==1)
            printf("Case %d# Yes\n",++t);
        else
            printf("Case %d# No\n",++t);
    }
    return 0;
}