Help me in solving FAIR_DISTRIB problem

help
,
1

My issue

how is value term evaluated…i think o am not getting the question properly due to the term value

My code

#include <bits/stdc++.h>
using namespace std;

int main() {
	// your code goes here
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>>n;
        string s;
        cin>>s;
        int sumzero=0;
        int sumone=0;
        for(int i=0;i<n;i++)
        {
            if(s[i]=='1')
            sumone+=i;
            else
            sumzero+=i;
        }
        if(abs(sumzero-sumone)<=n-1)
        cout<<"yes"<<endl;
        else
        cout<<"no"<<endl;
    }
}

Problem Link: Fair Distribution Practice Coding Problem - CodeChef