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22 lines
491 B
C++
22 lines
491 B
C++
#define _CRT_SECURE_NO_WARNINGS
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#define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING
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#include <bits/stdc++.h>
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using namespace std;
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const int N = 3e4 + 50, M = N << 1;
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int adj[N], nxt[M], to[M], ecnt;
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inline void addEdge(int f, int t)
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{
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ecnt++;
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nxt[ecnt] = adj[f];
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adj[f] = ecnt;
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to[ecnt] = t;
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}
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int main()
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{
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int n;
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scanf("%d", &n);
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for (int i = 1, u, v; i < n; i++)
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scanf("%d%d", &u, &v), addEdge(u, v), addEdge(v, u);
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return 0;
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}
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