結果
| 問題 |
No.867 避難経路
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-05-21 12:43:17 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,500 bytes |
| コンパイル時間 | 251 ms |
| コンパイル使用メモリ | 81,920 KB |
| 実行使用メモリ | 375,656 KB |
| 最終ジャッジ日時 | 2024-09-20 11:32:03 |
| 合計ジャッジ時間 | 47,634 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | -- * 3 |
| other | AC * 23 TLE * 2 -- * 16 |
ソースコード
import sys
input = sys.stdin.readline
from heapq import heappush,heappop
h,w = map(int,input().split())
gx,gy = [int(x)-1 for x in input().split()]
A = [list(map(int,input().split())) for i in range(h)]
inf = 10**20
dp = [[[inf]*(500) for i in range(w)] for j in range(h)]
dist = [[inf]*w for i in range(h)]
step = [[inf]*w for i in range(h)]
dist[gx][gy] = A[gx][gy]
dp[gx][gy][0] = A[gx][gy]
step[gx][gy] = 0
H = []
mod2 = 1<<16
heappush(H,(A[gx][gy]<<16)+gx*w+gy)
for d in range(500):
nH = []
while H:
num = heappop(H)
c,num = divmod(num,mod2)
x,y = divmod(num,w)
if dp[x][y][d] != c:
continue
# print(d,c,x,y)
for dx,dy in ((1,0),(0,1),(0,-1),(-1,0)):
nx = x+dx
ny = y+dy
if 0 <= nx < h and 0 <= ny < w:
nc = c + A[nx][ny]
if dist[nx][ny] <= nc:
continue
if d < 499 and dp[nx][ny][d+1] > nc:
dp[nx][ny][d+1] = nc
dist[nx][ny] = nc
step[nx][ny] = d+1
nnum = (nc<<16)+nx*w+ny
heappush(nH,nnum)
if nH:
H = nH
else:
break
q = int(input())
for _ in range(q):
x,y,k = map(int,input().split())
x -= 1
y -= 1
ans = inf
k = k**2
nc = k
ndp = dp[x][y]
for i in range(step[x][y]+1):
if ans > ndp[i]+nc:
ans = ndp[i]+nc
nc += k
print(ans)