数学建模+快递公司送货策略+论文

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问题二：

#include #include #include #define M 1000

using namespace std;

struct node{ int x; int y; int num; float weight; };

node v[31]; int mindis[31]; bool vd[31];

void create(ifstream &in,int n){ int i; for(i=0;i>v[i].num>>v[i].x>>v[i].y>>v[i].weight; cout<

int d(node a,node b){ return (abs(a.x-b.x)+abs(a.y-b.y)); }

void dis(){ int i,j; for(i=0;i<31;i++){ cout<

int next1() { int k,min=M,tag=0; float w; for(int i=1;i<31;i++)

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{ if(vd[i]==false&&d(v[0],v[i])

if(vd[i]==false&&d(v[0],v[i])==min&&v[i].weight>w) { k=i; w=v[i].weight; tag=1; } }

if(tag) return k; else return 0; }

int next2(int k,float w) { int min=M,tag=0,m,i; for(i=1;i<31;i++) { if(vd[i]==false&&d(v[k],v[i])v[k].x&&v[i].y>v[k].y) {

min=d(v[k],v[i]); m=i; tag=1; } if(vd[i]==false&&d(v[k],v[i])==min&&w+v[i].weight<=25&&v[i].weight>v[m].weight&&v[i].x>v[k].x&&v[i].y>v[k].y) { m=i;tag=1; } } if(tag) return m; else return 0; }

void way() { int k; float w;

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k=next1(); while(k!=0) { float time,money; int num_of_station=0,distance,tag; vd[k]=true; w=v[k].weight; distance=v[k].x+v[k].y; money=3.0*w*distance; time=(v[k].x+v[k].y)/20.0; cout<<'0'<<\ tag=next2(k,w); while(tag!=0) { num_of_station++; vd[tag]=true; cout<

int main(){ ifstream infile(\ create(infile,31); cout<

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}

system(\return 0;