33 lines
573 B
C++
33 lines
573 B
C++
#include <iostream>
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#include <string>
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using namespace std;
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string str1;
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int main()
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{
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int n,m;
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cin>>n>>m;
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for(int i=0; i<n; i++)
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{
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int w=1,t=0;
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cin>>str1;
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int sz=str1.size();
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for(int j=0; j<sz; j++)
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{
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if(str1.at(j)=='S')
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t++;
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else
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t--;
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if(t>m||t<0)
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{
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w=0;
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break;
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}
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}
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if(w==1&&t==0)
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cout<<"YES"<<endl;
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else
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cout<<"NO"<<endl;
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}
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return 0;
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}
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