35 lines
581 B
C++
35 lines
581 B
C++
#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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void solve()
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{
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int n,x=0,y=0;
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cin>>n;
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string s;
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cin>>s;
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for(int i=0;i<s.size(); ++i)
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{
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if(s[i]=='U') y++;
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else if(s[i]=='D') y--;
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else if (s[i]=='R') x++;
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else if(s[i]=='L') x--;
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if(x==1 && y==1)
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{
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cout<<"YES"<<endl;
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return;
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}
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}
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cout<<"NO"<<endl;
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}
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int main()
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{
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ios_base::sync_with_stdio(false);
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cin.tie(nullptr);
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int TC = 1;
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cin >> TC;
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cin.ignore();
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while (TC--) solve();
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} |