Create 38_张云聪.cpp

NYOJ/38_张云聪.cpp

@@ -0,0 +1,71 @@
+ 
+#include<queue>
+#include<iostream>
+#include<cstring>
+#include<cstdio>
+#include<numeric>
+#include<algorithm>
+using namespace std;
+#define CLR(arr,val) memset(arr,val,sizeof(arr))
+struct Node
+{
+	Node(){}
+	Node(int num,int len):len(len),num(num){}
+	int len,num;
+};
+bool operator<(const Node& n1,const Node& n2)
+{
+	return n1.len>n2.len;
+}
+const int MAX=510;
+const int MAXE=250000;
+int Head[MAX],Next[MAXE],Num[MAXE],Len[MAXE];
+int Dis[MAX],top;
+void add(int u,int v,int len)
+{
+	Num[top]=v;
+	Next[top]=Head[u];
+	Len[top]=len;
+	Head[u]=top++;
+}
+bool InQ[MAX];
+int main()
+{
+	//freopen("input.txt","r",stdin);
+	priority_queue<Node> q;
+	int t,m,n,a,b,l;
+	scanf("%d",&t);
+	while(t--)
+	{
+		top=0;CLR(Head,-1);
+		CLR(Dis,0x3f);
+		scanf("%d%d",&m,&n);
+		for(int i=0;i!=n;i++)
+		{
+			scanf("%d%d%d",&a,&b,&l);
+			add(a-1,b-1,l);add(b-1,a-1,l);
+		}
+		Dis[0]=0;
+		q.push(Node(0,0));
+		while(!q.empty())
+		{
+			Node t=q.top();q.pop();
+			if(Dis[t.num]!=t.len) continue;
+			for(int i=Head[t.num];i!=-1;i=Next[i])
+			{
+				if(Dis[Num[i]]>Len[i])
+				{
+					Dis[Num[i]]=Len[i];
+					q.push(Node(Num[i],Len[i]));
+				}
+			}
+		}
+		int minl=0x3f3f3f3f;
+		for(int i=0;i!=m;i++)
+		{
+			scanf("%d",&l);
+			minl=min(minl,l);
+		}
+		printf("%d\n",accumulate(Dis,Dis+m,0)+minl);
+	}
+}