delete pics to save space

2.12118.cpp

@@ -0,0 +1,55 @@
+#include<iostream>
+#include<vector>
+#include<cstring>
+using namespace std;
+const int maxn=1010;
+int v,e,t,cnt;
+bool vis[maxn];
+vector<int> g[maxn];
+inline bool read()
+{
+    cin>>v>>e>>t;
+    if(!v&&!e&&!t) return false;
+    for(int i=0;i<maxn;++i)
+        g[i].clear();
+    memset(vis,0,sizeof(vis));
+    for(int i=0;i<e;++i)
+    {
+        int a,b;
+        cin>>a>>b;
+        g[a].push_back(b);
+        g[b].push_back(a);
+    }
+    return true;
+}
+void dfs(int cur)
+{
+    if(vis[cur]) return;
+    vis[cur]=true;
+    cnt+=(int)g[cur].size()&1;
+    for(int i=0;i<g[cur].size();++i)
+        dfs(g[cur][i]);
+    return;
+}
+int solve()
+{
+    int ans=0;
+    for(int i=1;i<=v;++i)
+	{
+        if(!vis[i]&&!g[i].empty())
+		{
+            cnt=0;
+            dfs(i);
+            ans+=max(cnt,2);
+        }
+    }
+    return t*(max(ans/2-1,0)+e);
+}
+int main()
+{
+    ios::sync_with_stdio(false);
+    int k=0;
+    while(read())
+        cout<<"Case "<<++k<<": "<<solve()<<endl;
+    return 0;
+}