結果
| 問題 |
No.2604 Initial Motion
|
| コンテスト | |
| ユーザー |
ゼット
|
| 提出日時 | 2024-01-12 23:12:26 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,334 bytes |
| コンパイル時間 | 388 ms |
| コンパイル使用メモリ | 82,392 KB |
| 実行使用メモリ | 103,684 KB |
| 最終ジャッジ日時 | 2024-09-27 23:54:02 |
| 合計ジャッジ時間 | 5,152 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | TLE * 1 -- * 38 |
ソースコード
class MinCostFlow:
def __init__(self, n):
self.n = n
self.G = [[] for i in range(n)]
def addEdge(self, f, t, cap, cost):
# [to, cap, cost, rev]
self.G[f].append([t, cap, cost, len(self.G[t])])
self.G[t].append([f, 0, -cost, len(self.G[f])-1])
def minCostFlow(self, s, t, f):
n = self.n
G = self.G
prevv = [0]*n; preve = [0]*n
INF = 10**9+7
res = 0
while f:
dist = [INF]*n
dist[s] = 0
update = 1
while update:
update = 0
for v in range(n):
if dist[v] == INF:
continue
gv = G[v]
for i in range(len(gv)):
to, cap, cost, rev = gv[i]
if cap > 0 and dist[v] + cost < dist[to]:
dist[to] = dist[v] + cost
prevv[to] = v; preve[to] = i
update = 1
if dist[t] == INF:
return -1
d = f; v = t
while v != s:
d = min(d, G[prevv[v]][preve[v]][1])
v = prevv[v]
f -= d
res += d * dist[t]
v = t
while v != s:
e = G[prevv[v]][preve[v]]
e[1] -= d
G[v][e[3]][1] += d
v = prevv[v]
return res
K,N,M=map(int,input().split())
A=list(map(int,input().split()))
G=[[] for i in range(N)]
B=list(map(int,input().split()))
for i in range(M):
a,b,c=map(int,input().split())
G[a-1].append((b-1,c))
G[b-1].append((a-1,c))
from heapq import heappush,heappop
dist=[[10**16]*N for i in range(N)]
for i in range(N):
dist[i][i]=0
S=[]
heappush(S,i)
kaku=[False]*N
while S:
w=heappop(S)
time=w//(10**4)
x=w%(10**4)
if kaku[x]==True:
continue
kaku[x]=True
for B2 in G[x]:
y,c=B2[:]
if dist[i][y]>dist[i][x]+c:
dist[i][y]=dist[i][x]+c
heappush(S,dist[i][y]*10**4+y)
Z=MinCostFlow(K+N+2)
for i in range(1,K+1):
Z.addEdge(0,i,1,0)
pos=A[i-1]-1
for j in range(N):
Z.addEdge(i,j+1+K,1,dist[pos][j])
for j in range(N):
Z.addEdge(j+1+K,N+K+1,B[j],0)
ans=Z.minCostFlow(0,N+K+1,K)
print(ans)
ゼット