比赛 |
20121030 |
评测结果 |
EEEEEEEEEE |
题目名称 |
逃离遗迹 |
最终得分 |
0 |
用户昵称 |
舍得 |
运行时间 |
0.001 s |
代码语言 |
Pascal |
内存使用 |
3.98 MiB |
提交时间 |
2012-10-30 20:46:59 |
显示代码纯文本
const maxn=1000;
var
map:array[1..maxn,1..maxn]of longint;
i,j,m,n:longint;
a,b,c,x,y,z,k,sum,jj:longint;
function min(i,j:longint):longint;
begin
if i<j then exit(i) else exit(j);
end;
begin
assign(input,'escapeb.in');
reset(input);
assign(output,'escapeb.out');
reset(output);
readln(n,a,b,c);
fillword(map,sizeof(map)>>2,10000);
for i:=1 to n-1 do
begin
map[i,i]:=0;
readln(x,y,z);
if z<map[x,y] then
begin
map[x,y]:=z;
map[y,x]:=z;
end;
end;
for k:=1 to n do
for i:=1 to n do
for j:=1 to n do
if (k<>i) and (k<>j) and (i<>j) then
begin
map[i,j]:=min(map[i,j],map[i,k]+map[k,j]);
end;
sum:=maxlongint;
for i:=1 to n do
begin
if map[i,a]+map[i,b]+map[i,c]<sum
then
begin
jj:=i;
sum:=map[i,a]+map[i,b]+map[i,c];
end;
end;
writeln(jj);
writeln(sum);
close(input);
close(output);
end.