why i am getting WA for this solution:
#include <bits/stdc++.h>
using namespace std;
int main()
{
// your code goes here
int t;
cin>>t;
while(t–)
{ string s;
int n,k;
cin>>n>>k;
cin>>s;
int ar[n];
string st[n];
int ct=0;
for(int i=0;i<s.size();i++)
{
if(s[i]==‘1’)
{
st[ct]=s;
st[ct][i]=‘0’;
ct++;
}
}
int br[1000000];
for(int it=0;it<ct;it++)
{
int flag=0;
for(int i=0;i<s.size();)
{
if(s[i]=='0')
{ int j;
for(j=i;j<i+k;j++)
{
if(s[i]=='0')
continue;
else
break;
}
if(j==i+k)
{
flag++;
i=i+k;
}
}
else
{
i++;
}
}
br[it]=flag;
}
sort(br,br+ct);
cout<<br[ct-1]<<endl;
}
return 0;
}