I am getting erron in test cases can any one help me

general
, ,
1

#include
#include
using namespace std;
int num(string s,int n,int x)
{
int sum=0;
for(int i=n;i<=x;i++)
{
int temp=s[i];
sum=sum+temp;
}
return sum;
}
int main()
{
int t;
cin>>t;
while(t–)
{
string s;
int l,s1,s2,x,y;
cin>>s;
l =s.length();
if(l%2==0)
{
x=l/2;
y=x;

        }
        else
        {
              x=(l/2);
              y=x+1;
        }
        s1=num(s,0,x-1);
        s2=num(s,y,l);
        if(s1==s2)
        {
              cout<<"YES"<<endl;
        }
        else
        {
              cout<<"NO"<<endl;
        }
  }

}

error : CodeChef: Practical coding for everyone
question : https://www.codechef.com/LRNDSA01/problems/LAPIN![code|690x448](upload://gNBiRS0r1PTNfWY2tCkYKkBJnAh.png)

2

Consider the test input:

1
dbfdecfb
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3

thanks i got to know my mistake

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