s=0; for j=1:1:53 if z(i,j)~=0
s=s+1/z(i,j);%输出概率的K end end s=1/s; K=[K s]; end
3分块距离矩阵计算: ○
distanceMb=zeros(20); for i=1:1:20 k=1; for j=1:1:20 if i~=j
distanceMb(i,k)=abs(x1(Mb(i),1)-x1(Mb(j),1))+abs(x1(Mb(i),2)-x1(Mb(j),2)); end k=k+1; end end
4启发式算法代码: ○
#include
#define ZD 20//定义站点数 ZD = Zhan Dian #define DE 3//搜索深度 using namespace std;
int num[ZD];//各个站点相应的多余、缺少的车辆的数目
- 31 -
int route[10*ZD]; //车行走的路径
bool IsEnd(int num[]){//判断是否所有的车都已经调度完毕 }
int Pathfinding(int first,int vol,int depth){//寻路 找到下一个路径最优的站点
int i;
for(i=0; i if(num[i]!=0) return false; else return true;} double distance[ZD][ZD]; //各个站点之间的距离 if(depth <=0) return -1; int temp_distance[ZD]; int i,j,k; for(i=0;i temp_distance[i] = i;//存储站点号码 for(i=0;i for(j=i;j if(distance[first][temp_distance[i]]>distance[first][temp_distance[j]]){ } k = temp_distance[i]; temp_distance[i] = temp_distance[j]; temp_distance[j] = k; }//排序 保留的是距离从小到大的站点号码 int bound = DE;//设置边界 int temp_site[DE]; int next_site[DE]; j=0; for(i=0;i if(vol + num[temp_distance[i]] >= 0 && num[temp_distance[i]]!=0 && - 32 - temp_distance[i]!=first){ if(vol>=50 && num[temp_distance[i]] >0) continue; temp_site[j] = temp_distance[i]; next_site[j] = Pathfinding(temp_site[j],vol+num[temp_distance[i]],depth-1); if(bound<=1) break; bound--; j++; }//从i+1的原因是,第一个点是first点 }//搜索first节点的下一个和下下个节点 int change[ZD];//搬运车的总数 int lenth[ZD];//开车的距离 for(i=0;i change[i]=0; lenth[i]=0; int voll = vol; if(temp_site[i]<=0) break; if(num[temp_site[i]]<0){ } else if(50-voll > num[temp_site[i]]){ } - 33 - change[i] += abs(num[temp_site[i]]); voll += num[temp_site[i]]; change[i] += num[temp_site[i]]; voll += num[temp_site[i]]; else{ } lenth[i] += distance[first][temp_site[i]]; change[i] += num[temp_site[i]] - 50 + vol; voll = 50; } if(next_site[i]>0){ } else if(50- voll > num[next_site[i]]){ } else{ } } lenth[i] += distance[first][next_site[i]]; change[i] += num[next_site[i]] - 50 + vol; voll = 50; change[i] += num[next_site[i]]; voll += num[next_site[i]]; if(num[next_site[i]]<0){ change[i] += abs(num[next_site[i]]); voll += num[next_site[i]]; k=0; double temp=0; for(i=0;i - 34 - if(change[i]>0 && lenth[i]>0 && (double)change[i]/lenth[i]>temp){ } temp = (double)change[i]/lenth[i]; k = i; } return temp_site[k]; int main(){ ifstream fileinput; fileinput.open(\char v[ZD]; for (i=0;i { fileinput>>num[i]; double distance[ZD][ZD]; int first;//初始站点 int time=0;//路径总共走过的站点数 int i,j; } cout< fileinput.close(); fileinput.open(\for (i=0;i fileinput>>distance[i][j];cout< cout<<\请输入车站起点:\cin>>first; first=first-1; route[time] = first;//设置出发点 int vol;//注意点 if(num[first]<0) vol=0; else vol=num[first]; while(!IsEnd(num)){//车没搬完,一直搜索 time++; - 35 -