Help me in solving CONVERT problem

help
,
1

My issue

include
using namespace std;

int main() {
// your code goes here
int t;
cin>>t;
while(t–)
{
int n,k;
cin>>n>>k;
string s,t;
cin>>s>>t;
int cnt=0;
for(int i=0;i<n;i++){
if(s[i]!=t[i]) cnt++;
}
if(cnt%2==1 || cnt/2 > k){
cout<<“NO\n”;
}
else if((cnt/2 == k))
cout<<“YES\n”;
else if(cnt/2<k && (n-cnt)>1)
cout<<“YES\n”;
else
cout<<“NO\n”;
}
return 0;
}

Can anyone tell me what was the issue in this code.

My code

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t--)
	{
	    int n,k;
	    cin>>n>>k;
	    string s,t;
	    cin>>s>>t;
	    int cnt=0;
	    for(int i=0;i<n;i++){
	        if(s[i]!=t[i]) cnt++;
	    }
	    if(cnt%2==1 || cnt/2 > k){
	        cout<<"NO\n";
	    }
	    else if((cnt/2 == k))
	        cout<<"YES\n";
	    else if(cnt/2<k && (n-cnt)>1)
	        cout<<"YES\n";
	    else
	        cout<<"NO\n";
	}
	return 0;
}

Problem Link: Binary Conversion Practice Coding Problem

2

@amanraj5
your code is failing for the test case
1
3 2
1 0 1
1 1 0
answer would be yes but yours is no.