mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
#include<stdio.h>
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#include<math.h>
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#include<stdlib.h>
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#include<string.h>
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int n;
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struct A
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{
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int dis;
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int high;
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int flag;
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int hash;
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}E[111];
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int map[111][111];
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int cmp(const void *a,const void *b)
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{
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return *(int *)a-*(int *)b;
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}
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int MIN(int a,int b)
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{
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return a>b?b:a;
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}
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int DIJ()
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{
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int i,k;
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k=1;
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while(k)
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{
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E[k].flag=0;
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for(i=1;i<=n;i++)
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{
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if(k==i || !E[i].hash) continue;
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if(map[k][i]==1111111111) continue;
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if(E[k].dis+map[k][i]<E[i].dis) E[i].dis=E[k].dis+map[k][i];
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}
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k=0;
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for(i=1;i<=n;i++) if(E[i].flag && E[i].hash) {k=i;break;}
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for(;i<=n;i++) if(E[i].flag && E[i].hash && E[i].dis<E[k].dis) k=i;
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}
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return E[n].dis;
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}
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int main()
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{
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int T;
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int m;
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int i,l,j;
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int temp[111];
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int a,b,c;
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int t,t1,t2;
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int ans,dir,len;
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scanf("%d",&T);
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while(T--)
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{
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scanf("%d%d",&n,&m);
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for(i=1;i<=n;i++)
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{
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scanf("%d",&E[i].high);
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temp[i-1]=E[i].high;
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}
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qsort(temp,n,sizeof(temp[0]),cmp);
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for(i=1;i<=n;i++)
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{
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for(l=1;l<=n;l++) map[i][l]=1111111111;
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map[i][i]=0;
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}
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while(m--)
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{
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scanf("%d%d%d",&a,&b,&c);
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map[a][b]=map[b][a]=MIN(map[a][b],c);
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}
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t1=E[1].high;
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t2=E[n].high;
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if(t1>t2) {t=t1;t1=t2;t2=t;}
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for(i=0;i<n;i++) if(temp[i]==t1) {a=i;break;}
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for(i=n-1;i>=0;i--) if(temp[i]==t2) {b=i;break;}
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dir=1111111111;
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len=1111111111;
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for(i=a;i>=0;i--)
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{
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for(l=b;l<n;l++)
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{
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if(abs(temp[i]-temp[l])>=dir) continue;
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for(j=1;j<=n;j++)
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{
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E[j].dis=1111111111;
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E[j].flag=1;
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if(temp[i]<=E[j].high && E[j].high<=temp[l]) E[j].hash=1;
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else E[j].hash=0;
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}
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E[1].dis=0;
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len=DIJ();
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if(len!=1111111111)
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{
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if(abs(temp[i]-temp[l])<dir)
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{
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dir=abs(temp[i]-temp[l]);
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ans=len;
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}
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}
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}
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}
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printf("%d %d\n",dir,ans);
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}
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return 0;
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}
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