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Re:一直wa 帮忙看看吧In Reply To:一直wa 帮忙看看吧 Posted by:hansechang at 2008-07-30 21:37:54 > 枚举可能的rank > #include<stdio.h> > #include<memory.h> > int main(){ > int m,n,s[150][150],l[150],dis[150],max_rank=0; > int best; > bool visited[150]={false}; > memset(s,-1,sizeof(s)); > scanf("%d%d",&m,&n); > for(int i=1;i<=n;i++){ > int num; > scanf("%d%d%d",s[0]+i,l+i,&num); > if(l[i]>max_rank) > max_rank=l[i]; > for(int j=0;j<num;j++){ > int tem; > scanf("%d",&tem); > scanf("%d",&s[tem][i]); > } > } > l[0]=l[1],best=s[0][1]; > if(max_rank-l[0]>m) > max_rank=m+l[0]; > while(max_rank>=l[0]){ > memset(visited,false,sizeof(visited)); > for(int i=1;i<=n;i++) > dis[i]=s[0][i]; > for(int i=1;i<=n;i++){ > int j=1; > while(j<=n&&(visited[j]||l[i]>max_rank||max_rank-m>l[i])) > j++; > if(j==n+1) > break; > for(int k=j+1;k<=n;k++) > if(!visited[k]&&dis[k]<dis[j]&&l[k]<=max_rank&&l[k]>=max_rank-m) > j=k; > visited[j]=true; > for(int k=1;k<=n;k++) > if(!visited[k]&&s[j][k]!=-1&&s[j][k]+dis[j]<dis[k]&&l[k]<=max_rank&&l[k]>=max_rank-m) > dis[k]=dis[j]+s[j][k]; > } > if(dis[1]<best) > best=dis[1]; > max_rank--; > } > printf("%d\n",best); > return 0; > } Followed by: Post your reply here: |
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