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HDOJ/1011_autoAC.cpp

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+#include <vector>
+#include <string.h>   
+using namespace std;  
+#include<stdio.h>   
+int roomNumber,trooperNumber;  
+vector<int> path[101];  
+int dp[101][101];  
+bool visited[101];  
+int cost[101];  
+int max(int a,int b)  
+{  
+    return a>b?a:b;  
+}  
+void solve(int deep)  
+{  
+    visited[deep]=true;  
+    for (int i=0;i<path[deep].size();i++)  
+    {  
+        int value=path[deep][i];  
+        if(visited[value]) continue;  
+        solve(value);  
+        for(int j=trooperNumber-1;j>=cost[deep];j--)  
+            for (int index=1;index+j<=trooperNumber;index++)  
+                if(dp[value][index])   
+                    dp[deep][j+index]=max(dp[deep][j+index],dp[deep][j]+dp[value][index]);  
+    }  
+}  
+int main()  
+{  
+    while (scanf("%d%d",&roomNumber,&trooperNumber)!=EOF)  
+    {  
+        if(roomNumber==-1&&trooperNumber==-1)  
+            break;  
+        for (int i=0;i<=roomNumber;i++)  
+        {  
+            path[i].clear();  
+        }  
+        memset(dp,0,sizeof(dp));  
+        memset(visited,0,sizeof(visited));  
+        int tempA;  
+        for(int i=1;i<=roomNumber;i++)  
+        {  
+            scanf("%d%d",&cost[i],&tempA);  
+            cost[i]=(cost[i]+19)/20;  
+            for (int j=cost[i];j<=trooperNumber;j++)  
+                dp[i][j]=tempA;  
+        }  
+        int tempB;  
+        for(int i=1;i<=roomNumber-1;i++)  
+        {  
+            scanf("%d%d",&tempB,&tempA);  
+            path[tempB].push_back(tempA);  
+            path[tempA].push_back(tempB);  
+        }  
+        if(trooperNumber==0)  
+            printf("0\n");  
+        else   
+        {  
+            solve(1);  
+            printf("%d\n",dp[1][trooperNumber]);  
+        }  
+    }  
+    return 0;  
+}