From b09661055d078ed0f9ca6f36f024915f92869835 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Mon, 19 Jul 2021 08:11:55 +0800
Subject: [PATCH] =?UTF-8?q?P4779=20=E3=80=90=E6=A8=A1=E6=9D=BF=E3=80=91?=
 =?UTF-8?q?=E5=8D=95=E6=BA=90=E6=9C=80=E7=9F=AD=E8=B7=AF=E5=BE=84=EF=BC=88?=
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R53528371
---
 Luogu/problem/P4779/P4779.cpp | 43 +++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Luogu/problem/P4779/P4779.cpp

diff --git a/Luogu/problem/P4779/P4779.cpp b/Luogu/problem/P4779/P4779.cpp
new file mode 100644
index 00000000..ea5b2fe6
--- /dev/null
+++ b/Luogu/problem/P4779/P4779.cpp
@@ -0,0 +1,43 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int n, m, s, u, v, w, dist[200005];
+vector<pair<int, int>> g[200005];
+bool st[200005];
+
+void dijkstra() {
+    memset(dist, 0x3f, sizeof(dist));
+    dist[s] = 0;
+    priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> q;
+    q.push(make_pair(0, s));
+    while (!q.empty()) {
+        auto t = q.top();
+        q.pop();
+        int tw = t.second;
+        int td = t.first;
+        if (st[tw]) continue;
+        for (auto i : g[tw]) {
+            int j = i.first;
+            if (dist[j] > td + i.second) {
+                dist[j] = td + i.second;
+                q.push(make_pair(dist[j], j));
+            }
+        }
+        st[tw] = true;
+    }
+}
+
+int main() {
+    cin >> n >> m >> s;
+    for (int i = 1; i <= m; i++) {
+        cin >> u >> v >> w;
+        g[u].push_back(make_pair(v, w));
+    }
+    dijkstra();
+    for (int i = 1; i <= n; i++) {
+        cout << dist[i] << ' ';
+    }
+    cout << endl;
+    return 0;
+}