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阅读量:319 次
发布时间:2019-03-04

本文共 757 字,大约阅读时间需要 2 分钟。

#include 
using namespace std;const int maxn = 1005;int n, m, cnt;struct Edge { int to, w, next;} edge[maxn];int head[maxn];void init() { for(int i = 0; i <= n; i++) head[i] = -1;}void add(int u, int v, int w) { edge[cnt].to = v; edge[cnt].w = w; edge[cnt].next = head[u]; head[u] = cnt++;}int main() { cin >> n >> m; int u, v, w; init(); for(int i = 1; i <= m; i++) { cin >> u >> v >> w; add(u, v, w); } //遍历 for(int i = 1; i <= n; i++) { for(int j = head[i]; j != -1; j = edge[j].next) { cout << edge[j].to << " " << edge[j].w << endl; } } return 0;}

以上代码实现了一个图的表示方法,主要包括以下功能:

  • 使用边列表表示图
  • 通过head数组记录每个节点的入边
  • 通过add函数添加边
  • 通过遍历输出图的信息
  • 代码结构清晰,适合用于处理图的相关问题。

    转载地址:http://nirq.baihongyu.com/

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