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WA啊。。晕,麻烦大牛看看。有个问题,连接一定是从一个管子的右边连到另一个管子的左边吗?

Posted by yzhw9981 at 2009-04-24 11:35:29 on Problem 1073
# include <stdio.h>
# include <stdbool.h>
struct
{
    int lx,rx;
    int y;
    int h;
    int next[100];
    int c;
}graph[21];
struct
{
       int f;
       int t;
       int h;
}link[51];
int target,level,pipe;
bool used[21];
void dfs(int s,int *min)
{
    if(used[s]) return;
    else
    {
        int i;
        used[s]=1;
        if(graph[s].y>*min) *min=graph[s].y;
        for(i=1;i<=graph[s].c;i++)
        {
          if(link[graph[s].next[i]].h>=level)
          {
           if(link[graph[s].next[i]].f==s)
            dfs(link[graph[s].next[i]].t,min);
           else
            dfs(link[graph[s].next[i]].f,min);
           }
          }
    }
}
void add(int f,int l)
{
     graph[f].next[++graph[f].c]=l;
}
int main()
{
    int testcase,i;
    scanf("%d",&testcase);
    for(i=1;i<=testcase;i++)
    {
        int j,refer[101];
        scanf("%d",&pipe);
        memset(used,0,sizeof(used));
        for(j=1;j<=100;j++) refer[j]=-1;
        for(j=1;j<=pipe;j++)
        {
          scanf("%d %d %d",&graph[j].lx,&graph[j].y,&graph[j].h);
          graph[j].c=0;
          graph[j].rx=graph[j].lx+1;
          refer[graph[j].lx]=j;
        }
        int linknum;
        scanf("%d",&linknum);
        for(j=1;j<=linknum;j++)
        {
           int t1,t2,t3;
           scanf("%d %d %d",&t1,&t2,&t3);
           link[j].h=t2;
           link[j].f=refer[t1-1];
           link[j].t=refer[t1+t3];
           add(link[j].f,j);
           add(link[j].t,j);  
        }
        scanf("%d %d",&target,&level);
        int k;
        int min=-1;
        dfs(target,&min);
        if(min>level||!used[1]) printf("No Solution\n");
        else
        {
            int total=0;
            for(j=1;j<=pipe;j++)
            {
             if(used[j]) total+=graph[j].h-(level-graph[j].y);
            }
            printf("%d\n",total);
        }
    }
    system("pause");
    return 0;
}
         
           

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