lanqiao 3511 飞机降落
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@@ -30,7 +30,7 @@ int main(){
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for(int i = 1; i<=n; i++){
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cin >> a[i].t >> a[i].d >> a[i].l;
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}
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flag = false;
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flag = false; // 重置
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dfs(1, 0);
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if(flag) cout << "YES" << endl;
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else cout << "NO" << endl;
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