Help me in solving SC31 problem

help
,
1

My issue

can u explain the problem statement clearly

My code

# cook your dish here

Problem Link: Weapon Value Practice Coding Problem

2

@nageswarijampa
here refer the following code

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t--)
	{
	    int n;
	    cin>>n;
	    string s[n];
	    for(int i=0;i<n;i++)
	    {
	        cin>>s[i];
	    }
	    int ans=0;
	    for(int i=0;i<10;i++)
	    {
	       int an=0;
	        for(int j=0;j<n;j++)
	        {
	            an=an^(s[j][i]-'0');
	        }
	        ans+=an;
	    }
	    cout<< ans<<endl;
	}
	return 0;
}