From ccafa64035bc6bf7d57b17f0be070a21d7b4233b Mon Sep 17 00:00:00 2001
From: KiritoTRw <3021577574@qq.com>
Date: Wed, 27 Apr 2016 20:40:15 +0800
Subject: [PATCH] From
 http://blog.csdn.net/qq_33765907/article/details/51228610

---
 ZOJ/3946_csdn.cpp | 53 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 ZOJ/3946_csdn.cpp

diff --git a/ZOJ/3946_csdn.cpp b/ZOJ/3946_csdn.cpp
new file mode 100644
index 0000000..ff88347
--- /dev/null
+++ b/ZOJ/3946_csdn.cpp
@@ -0,0 +1,53 @@
+#include <bits/stdc++.h>
+using namespace std;
+typedef long long LL;
+typedef pair<int, int> PII;
+
+const int MAXN = 100000 + 10;
+vector<PII> G[MAXN];
+int X[MAXN], Y[MAXN], D[MAXN], C[MAXN];
+LL ds[MAXN], ms[MAXN];
+int n, m;
+
+void run() {
+  cin >> n >> m;
+  for (int i = 0; i < n; ++i) {
+    G[i].clear();
+    ms[i] = ds[i] = 1ll << 60;
+  }
+  for (int i = 0; i < m; ++i) {
+    cin >> X[i] >> Y[i] >> D[i] >> C[i];
+    G[X[i]].push_back(PII(Y[i], i));
+    G[Y[i]].push_back(PII(X[i], i));
+  }
+  ds[0] = ms[0] = 0;
+  queue<int> Q; Q.push(0);
+  vector<bool> vs(n);
+  while (!Q.empty()) {
+    int u = Q.front(); Q.pop(); vs[u] = 0;
+    for (auto &x: G[u]) {
+      int v = x.first, w = D[x.second];
+      if (ds[v] > ds[u] + w) {
+        ds[v] = ds[u] + w;
+        if (!vs[v]) vs[v] = 1, Q.push(v);
+      }
+    }
+  }
+  for (int i = 0; i < m; ++i) {
+    if (ds[X[i]] + D[i] == ds[Y[i]]) {
+      ms[Y[i]] = min(ms[Y[i]], (LL)C[i]);
+    }
+    if (ds[Y[i]] + D[i] == ds[X[i]]) {
+      ms[X[i]] = min(ms[X[i]], (LL)C[i]);
+    }
+  }
+  LL SD = 0, SC = 0;
+  for (int i = 0; i < n; ++i) SD += ds[i], SC += ms[i];
+  cout << SD << " " << SC << endl;
+}
+
+int main() {
+  int T; cin >> T;
+  for (int cas = 1; cas <= T; ++cas) run();
+  return 0;
+}