19 lines
317 B
C++
19 lines
317 B
C++
#include<bits/stdc++.h>
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using namespace std;
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int n;
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char a[30][3];
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void dfs(char x)
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{
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if(x=='*') return;
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cout<<x;
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for(int i=1;i<=n;i++)
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if(a[i][0]==x) dfs(a[i][1]),dfs(a[i][2]);
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}
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int main()
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{
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cin>>n;
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for(int i=1;i<=n;i++) cin>>a[i][0]>>a[i][1]>>a[i][2];
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dfs(a[1][0]);
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return 0;
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}
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