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- //============================================================================
- // Name : E.cpp
- // Author :
- // Version :
- // Copyright : Your copyright notice
- // Description : Hello World in C++, Ansi-style
- //============================================================================
- #include <iostream>
- using namespace std;
- typedef long long ll;
- int testCases;
- ll n,k;
- int main() {
- cin>>testCases;
- while(testCases--)
- {
- string temp;
- cin>>n>>k;
- cin>>temp;
- ll contigous=0;
- ll local=0;
- for(int i=0;i<n;++i)
- {
- if(temp[i]=='1')
- {
- local=0;
- contigous=max(local,contigous);
- }else
- {
- local++;
- }
- }
- if(contigous>=(k+1))
- {
- cout<<"yes"<<endl;
- }
- else
- {
- cout<<"no"<<endl;
- }
- }
- }
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