Homework New

Exercise/Homework6/图的创建.cpp

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+
+#include <iostream>
+#include <vector>
+#include <utility>
+#include <algorithm>
+
+using namespace std;
+
+int main() {
+    int n, m;
+    cin >> n >> m;
+    vector<vector<pair<int, int>>> adj(n);
+    //DAG
+    for (int i = 0; i < m; i++) {
+        int u, v, w;
+        cin >> u >> v >> w;
+        adj[u].push_back({v, w});
+    }
+    for(int i = 0; i < n; i++) {
+        if(adj[i].size() > 0) {
+            sort(adj[i].begin(), adj[i].end());
+            cout << i << ":";
+            for(auto [v, w] : adj[i]) {
+                cout << "(" << i << "," << v << "," << w << ")";
+            }
+            cout << endl;
+        }
+    }
+    return 0;
+}